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Practice GMAS-Science questions

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Magnetism Webquest

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Into to Electricity Webquest

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Gravity PPT

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Understanding Gravity WS

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Begin Gravity Notes

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Study Guide for the Midterm-Friday 3/15

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Forces Review Worksheet (part of the study guide for the midterm)

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LINK to online textbook and DIRECTIONS for accessing it
Accessing Online Textbook

1.      Go to hmhco.com/ed

2.       Select Georgia, select Houston County (should only be prompted to do this the first time accessing the platform)

3.      Enter your Houston County school issued email address as the username and the county issued email password as the password

4.      Click on the drop down arrow next to “G1…” and select 8th Grade

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Laws of Motion Brochure-Instructions (use the NEW textbook, pgs. 332-339

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Calculating Net Forces-Practice WS (done in class)

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Webquest Link

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Laws of Motion Webquest

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Forces Foldable

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After strong consideration, I have decided to move the test to Thursday rather than Wednesday. Students really struggled interpreting distance-time vs speed-time graphs today. Please remember to look at the y-acus

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Motion Test Study Guide-TEST WED 2/27

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Test will cover: motion terms, distance-time graphs and speed-time graphs

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Speed-Time Graphs-Practice WS

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Speed-Time Graphs-PPT Notes

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Speed-Time Graphs-Notes (from PPT)

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Distance-Time Graphs PPT

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Interpreting Distance-Time Graphs Practice Worksheet

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Handout used for D-T graphs notes

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Distance-Time Graphs: Notes and discussion

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Began Motion Unit: Standard S8P3a
• Analyze and interpret data to identify patterns in the relationships between speed and distance, and velocity and acceleration.
Classwork: Define key terms

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Sound Study Guide.  Please bring this to class everyday!  I will gladly check your work if you complete it early!  LIGHT AND SOUND TEST IS TUESDAY 2/12 (You already have a study guide for Light

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Major Unit Test-Light and Sound-NEXT TUESDAY 2/12. Students will receive a study guide for Sound, but will not receive one for Light since they have the one from last week!

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Begin the SOUND unit!
Sound Webquest

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REMINDER: IF YOU PLAN ON TAKING THE WAVES RETEST TOMORROW, YOU MUST SCORE A 70% OR BETTER ON BOTH USA TESTPREP PRACTICE TESTS!

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REPOST: Light Foldable Instructions We began this assignment on January 22nd so be ready to turn it in tomorrow! The PowerPoint is your best resource, it is posted below!

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WAVES RETEST WILL TAKE PLACE DURING TIGER TIME THIS FRIDAY!

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WAVES RETEST WILL TAKE PLACE DURING TIGER TIME THIS FRIDAY!

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**Don't forget that you must score 70% or higher on both USA TestPrep practice tests. You can retake them as many times as you want. Use your study guides to help since they are for practice. :)

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Light Study Guide-Quiz Friday 2/1

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Lenses-Notes Key

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Lenses-Student Notes

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REPOST OF EM WAVES STUDY GUIDE

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Waves & Electromagnetic Spectrum Study Guide

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REPOST OF WAVES STUDY GUIDE

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Light PPT.  QUIZ FRIDAY FEB 1!!

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WAVES TEST RETEST: WED 1/30. You must complete the 2 assigned practice tests on USA Testprep AND score a 70% or better in order to retest.

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Lab-"Now you see it...Now you don't!"
Purpose: To identify materials as transparent, translucent or opaque

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EM Waves and EM Spectrum Notes

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Electromagnetic Spectrum Questions

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NASA PHOTO-VIDEO RELEASE FORM-PLEASE RETURN ASAP!  THANKS!

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The Electromagnetic Spectrum Drawing Instructions

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FINAL EXAM STUDY GUIDE

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Intro to Waves PPT (Used to fill in notes sheet)

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Intro to Waves Notes Sheet

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Intro to Waves Webquest-Link for #1-17

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Physics for Kids: Basic Science of Waves

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Kids learn about waves in the science of physics including types such as mechanical, electromagnetic, transverse, and longitudinal. Facts and examples are included.

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Intro to Waves Webquest-Link for #18-21

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Waves come in many shapes and forms. While all waves share some basic characteristic properties and behaviors, some waves can be distinguished from others based on some observable (and some non-observable) characteristics. It is common to categorize waves based on these distinguishing characteristics.

Longitudinal versus Transverse Waves versus Surface Waves

One way to categorize waves is on the basis of the direction of movement of the individual particles of the medium relative to the direction that the waves travel. Categorizing waves on this basis leads to three notable categories: transverse waves, longitudinal waves, and surface waves.

A transverse wave is a wave in which particles of the medium move in a direction perpendicular to the direction that the wave moves. Suppose that a slinky is stretched out in a horizontal direction across the classroom and that a pulse is introduced into the slinky on the left end by vibrating the first coil up and down. Energy will begin to be transported through the slinky from left to right. As the energy is transported from left to right, the individual coils of the medium will be displaced upwards and downwards. In this case, the particles of the medium move perpendicular to the direction that the pulse moves. This type of wave is a transverse wave. Transverse waves are always characterized by particle motion being perpendicular to wave motion.

A longitudinal wave is a wave in which particles of the medium move in a direction parallel to the direction that the wave moves. Suppose that a slinky is stretched out in a horizontal direction across the classroom and that a pulse is introduced into the slinky on the left end by vibrating the first coil left and right. Energy will begin to be transported through the slinky from left to right. As the energy is transported from left to right, the individual coils of the medium will be displaced leftwards and rightwards. In this case, the particles of the medium move parallel to the direction that the pulse moves. This type of wave is a longitudinal wave. Longitudinal waves are always characterized by particle motion being parallel to wave motion.

A sound wave traveling through air is a classic example of a longitudinal wave. As a sound wave moves from the lips of a speaker to the ear of a listener, particles of air vibrate back and forth in the same direction and the opposite direction of energy transport. Each individual particle pushes on its neighboring particle so as to push it forward. The collision of particle #1 with its neighbor serves to restore particle #1 to its original position and displace particle #2 in a forward direction. This back and forth motion of particles in the direction of energy transport creates regions within the medium where the particles are pressed together and other regions where the particles are spread apart. Longitudinal waves can always be quickly identified by the presence of such regions. This process continues along the chain of particles until the sound wave reaches the ear of the listener. A detailed discussion of sound is presented in another unit of The Physics Classroom Tutorial.

Waves traveling through a solid medium can be either transverse waves or longitudinal waves. Yet waves traveling through the bulk of a fluid (such as a liquid or a gas) are always longitudinal waves. Transverse waves require a relatively rigid medium in order to transmit their energy. As one particle begins to move it must be able to exert a pull on its nearest neighbor. If the medium is not rigid as is the case with fluids, the particles will slide past each other. This sliding action that is characteristic of liquids and gases prevents one particle from displacing its neighbor in a direction perpendicular to the energy transport. It is for this reason that only longitudinal waves are observed moving through the bulk of liquids such as our oceans. Earthquakes are capable of producing both transverse and longitudinal waves that travel through the solid structures of the Earth. When seismologists began to study earthquake waves they noticed that only longitudinal waves were capable of traveling through the core of the Earth. For this reason, geologists believe that the Earth's core consists of a liquid - most likely molten iron.

While waves that travel within the depths of the ocean are longitudinal waves, the waves that travel along the surface of the oceans are referred to as surface waves. A surface wave is a wave in which particles of the medium undergo a circular motion. Surface waves are neither longitudinal nor transverse. In longitudinal and transverse waves, all the particles in the entire bulk of the medium move in a parallel and a perpendicular direction (respectively) relative to the direction of energy transport. In a surface wave, it is only the particles at the surface of the medium that undergo the circular motion. The motion of particles tends to decrease as one proceeds further from the surface.

Any wave moving through a medium has a source. Somewhere along the medium, there was an initial displacement of one of the particles. For a slinky wave, it is usually the first coil that becomes displaced by the hand of a person. For a sound wave, it is usually the vibration of the vocal chords or a guitar string that sets the first particle of air in vibrational motion. At the location where the wave is introduced into the medium, the particles that are displaced from their equilibrium position always moves in the same direction as the source of the vibration. So if you wish to create a transverse wave in a slinky, then the first coil of the slinky must be displaced in a direction perpendicular to the entire slinky. Similarly, if you wish to create a longitudinal wave in a slinky, then the first coil of the slinky must be displaced in a direction parallel to the entire slinky.

Electromagnetic versus Mechanical Waves

Another way to categorize waves is on the basis of their ability or inability to transmit energy through a vacuum (i.e., empty space). Categorizing waves on this basis leads to two notable categories: electromagnetic waves and mechanical waves.

An electromagnetic wave is a wave that is capable of transmitting its energy through a vacuum (i.e., empty space). Electromagnetic waves are produced by the vibration of charged particles. Electromagnetic waves that are produced on the sun subsequently travel to Earth through the vacuum of outer space. Were it not for the ability of electromagnetic waves to travel to through a vacuum, there would undoubtedly be no life on Earth. All light waves are examples of electromagnetic waves. Light waves are the topic of another unit at The Physics Classroom Tutorial. While the basic properties and behaviors of light will be discussed, the detailed nature of an electromagnetic wave is quite complicated and beyond the scope of The Physics Classroom Tutorial.

A mechanical wave is a wave that is not capable of transmitting its energy through a vacuum. Mechanical waves require a medium in order to transport their energy from one location to another. A sound wave is an example of a mechanical wave. Sound waves are incapable of traveling through a vacuum. Slinky waves, water waves, stadium waves, and jump rope waves are other examples of mechanical waves; each requires some medium in order to exist. A slinky wave requires the coils of the slinky; a water wave requires water; a stadium wave requires fans in a stadium; and a jump rope wave requires a jump rope.

The above categories represent just a few of the ways in which physicists categorize waves in order to compare and contrast their behaviors and characteristic properties. This listing of categories is not exhaustive; there are other categories as well. The five categories of waves listed here will be used periodically throughout this unit on waves as well as the units on sound and light.

Investigate!

Earthquakes and other geologic disturbances sometimes result in the formation of seismic waves. Seismic waves are waves of energy that are transported through the earth and over its surface by means of both transverse and longitudinal waves. Just how common are seismic waves? Use the Recent Earthquakes widget below to explore the frequency of earthquakes. Search the past week or the past 24 hours or by Richter scale magnitude.

Check Your Understanding

1. A transverse wave is transporting energy from east to west. The particles of the medium will move_____.

a. east to west only
b. both eastward and westward

c. north to south only

d. both northward and southward

2.A wave is transporting energy from left to right. The particles of the medium are moving back and forth in a leftward and rightward direction. This type of wave is known as a ____.

a. mechanical

b. electromagnetic

c. transverse

d. longitudinal

3. Describe how the fans in a stadium must move in order to produce a longitudinal stadium wave.

4. A sound wave is a mechanical wave, not an electromagnetic wave. This means that

a. particles of the medium move perpendicular to the direction of energy transport.
b. a sound wave transports its energy through a vacuum.

c. particles of the medium regularly and repeatedly oscillate about their rest position.

d. a medium is required in order for sound waves to transport energy.

5. A science fiction film depicts inhabitants of one spaceship (in outer space) hearing the sound of a nearby spaceship as it zooms past at high speeds. Critique the physics of this film.

6. If you strike a horizontal rod vertically from above, what can be said about the waves created in the rod?

a. The particles vibrate horizontally along the direction of the rod.
b. The particles vibrate vertically, perpendicular to the direction of the rod.

c. The particles vibrate in circles, perpendicular to the direction of the rod.

d. The particles travel along the rod from the point of impact to its end.

7. Which of the following is not a characteristic of mechanical waves?

a. They consist of disturbances or oscillations of a medium.
b. They transport energy.

c. They travel in a direction that is at right angles to the direction of the particles of the medium.

d. They are created by a vibrating source.

8. The sonar device on a fishing boat uses underwater sound to locate fish. Would you expect sonar to be a longitudinal or a transverse wave?

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how is a longitudinal wave different than a transverse waves. longitudinal versus transverse waves

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how are mechanical waves different than electromagnetic waves

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Waves involve a transport of energy from one location to another location while the particles of the medium vibrate about a fixed position. Two common categories of waves are transverse waves and longitudinal waves. The categories distinguish between waves in terms of a comparison of the direction of the particle motion relative to the direction of the energy transport.

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Intro to Waves Webquest-Link for #22-26

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Introduction And Key Concepts | Longitudinal Waves | Siyavula

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Siyavula's open Physical Sciences Grade 10 textbook, chapter 9 on Longitudinal Waves covering Introduction And Key Concepts

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Thermal Energy PPT-Class notes

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Thermal Energy-Heat Transfer Study Guide QUIZ THURSDAY 11/29

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Heat Transfer Practice WS (classwork)

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Heat Transfer Foldable Instructions

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Part 2: Heat Transfer Webquest Link

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Part 1: Heat Transfer Webquest Link

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Most of us use the word 'heat' to mean something that feels warm, but science defines heat as the flow of energy from a warm object to a cooler object.

Actually, heat energy is all around us - in volcanoes, in icebergs and in your body. All matter contains heat energy.

Heat energy is the result of the movement of tiny particles called atoms, molecules or ions in solids, liquids and gases. Heat energy can be transferred from one object to another. The transfer or flow due to the difference in temperature between the two objects is called heat.

For example, an ice cube has heat energy and so does a glass of lemonade. If you put the ice in the lemonade, the lemonade (which is warmer) will transfer some of its heat energy to the ice. In other words, it will heat up the ice. Eventually, the ice will melt and the lemonade and water from the ice will be the same temperature. This is known as reaching a state of thermal equilibrium.

Moving particles

Matter is all around you. It is everything in the universe - anything that has both mass and volume and takes up space is matter. Matter exists in different physical forms - solids, liquids and gases.

All matter is made of tiny particles called atoms, molecules and ions. These tiny particles are always in motion - either bumping into each other or vibrating back and forth. It is the motion of particles that creates a form of energy called heat (or thermal) energy that is present in all matter.

The particles in solids are tightly packed and can only vibrate. The particles in liquids also vibrate but are able to move around by rolling over each other and sliding around. In gases, the particles move freely with rapid, random motion.

Transferring heat energy - particles in collision

At higher temperatures, particles have more energy. Some of this energy can be transmitted to other particles that are at a lower temperature. For example, in the gas state, when a fast moving particle collides with a slower moving particle, it transfers some of its energy to the slower moving particle, increasing the speed of that particle.

With billions of moving particles colliding into each other, an area of high energy will slowly transfer across the material until thermal equilibrium is reached (the temperature is the same across the material).

Changing states by heat transfer

Faster moving particles 'excite' nearby particles. If heated sufficiently, the movement of particles in a solid increases and overcomes the bonds that hold the particles together. The substance changes its state from a solid to a liquid (melting). If the movement of the particles increases further in the liquid, then a stage is reached where the substance changes into a gas (evaporation).

Three ways of transferring heat energy

All heat energy, including heat generated by fire, is transferred in different ways:

Convection transfers heat energy through gases and liquids. As air is heated, the particles gain heat energy allowing them to move faster and further apart, carrying the heat energy with them. Warm air is less dense than cold air and will rise. Cooler air moves in below to replace the air that has risen. It heats up, rises, and is again replaced by cooler air, creating a circular flow called a convection current. These currents circle and heat the room.

Conduction transfers heat energy in solids. The moving particles of a warm soild material can increase the heat energy of the particles in a cooler solid material by transferring it directly from one particle to the next. Since particles are closer together, solids conduct heat better than liquids or gases.

Radiation is a method of heat transfer that does not require particles to carry the heat energy. Instead, heat is transferred in infrared waves (part of the electromagnetic spectrum). Heat waves radiate out from hot objects in all directions, travelling at the speed of light, until they hit another object. When this happens, the heat energy carried by the waves can be either absorbed or reflected.

Fire illustrates the three different methods of heat transfer. For example, the firebox will heat up due to convection. The air above the fire will be warm due to convection. You can warm your hands near to the flames due to radiant heat transfer.

An effect of heat - expansion

When gases, liquids and solids are heated, they expand. As they cool, they contract or get smaller. The expansion of the gases and liquids is because the particles are moving around very fast when they are heated and are able to move further apart so they take up more room. If the gas or liquid is heated in a closed container, the particles collide with the sides of the container, and this causes pressure. The greater the number of collisions, the greater the pressure.

Sometimes when a house is on fire, the windows will explode outwards. This is because the air in the house has been heated and the excited molecules are moving at high speed around the room. They are pushing against the walls, ceiling, floor and windows. Because the windows are the weakest part of the house structure, they break and burst open, releasing the increased pressure.

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Most of us use the word 'heat' to mean something that feels warm, but science defines heat as the flow of energy from a warm object to a cooler object. Actually, heat energy is all around us - in volcanoes, in icebergs and in your body. All matter contains heat energy.

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Heat Transfer Webquest

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Warm-ups #2 I will be collecting these this Friday.

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Forms of Energy Foldable Instructions

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Energy Test Study Guide-TEST FRIDAY 11/9

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Energy Transformations WS (Classwork)

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MAJOR TEST: FRIDAY 11/9  Study:  Potential and kinetic energy, Forms of Energy, Transformations

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Energy: Forms and Transformations PPT

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Forms of Energy: Introduction

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Ramp Lab Analysis: Identifying Variables and Graphing Data

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Ramp Lab

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Potential and Kinetic Energy Review Sheet
QUIZ THIS THURSDAY 10/25!

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1st Semester Midterm Analysis and Corrections

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What an awesome day learning about the forces of flight ✈️ I am too excited to have NASA working with my students this the year! Students will not only gain an understanding of drag, thrust and gravity, but they will be designing a shoebox that can fly! With that being said, we are in need of shoeboxes, any size! If you have any at home we would love to have them for this exciting endeavor!

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Don’t forget that NASA will be conducting the science lesson in all 4 classes tomorrow! It’s going to be a GREAT day! 😃

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Roller coaster fun today! So much creativity and teamwork! Check out our pics and videos on our Instagram page @ Waltonscience

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INFOBOOK DUE TOMORROW (Thursday 10/18)
PE-KE PPT

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Potential and Kinetic Energy Infobook (instructions)

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BEGIN STANDARD S8P2: Kinetic and Potential Energy and Its Transformations in a System
Kinetic and Potential Energy Handout (for foldable)

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Law of Conservation of Matter PPT

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The Law of Conservation of Mass Lab

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Density Column Extra Credit!
***Due NO LATER TUESDAY 10/2!  Be sure to complete PART 2 also!

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Midterm Study Guide
***Submit by October 2nd if you would like me to check your work so you will have time to make corrections and/or ask questions.
Science Midterm-Thursday 10/4

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SCIENCE VOCABULARY-THINGS TO KNOW FOR MIDTERM 10/4

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Sink or Float? Density Practice (Classwork assignment)

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September 27                                                                                                               NO QUIZ TOMORROW!!  Be prepared to do continue discussing density! 

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September 27                                                                                                               NO QUIZ TOMORROW!!  Be prepared to do continue discussing density! 

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Density Column Shaker Lab

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Physical and Chemical Properties and Changes PPT

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Physical-Chemical Properties and Changes Review Sheet
***USE THIS AS A STUDY GUIDE FOR THE QUIZ FRIDAY!

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Physical and Chemical Properties and Changes Webquest
Task 3: Questions 24-37 (Quick link)

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This is the definition of physical change in chemistry, along with examples of types of physical changes.

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Physical and Chemical Properties and Changes Webquest
Task 2: Questions 12-23 (Quick link)

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It is important to understand the difference between chemical and physical changes. Some changes are obvious, but there are some basic ideas you should know. Physical changes are usually about physical states of matter. Chemical changes happen on a molecular level when you have two or more molecules that interact. Chemical changes happen when atomic bonds are broken or created during chemical reactions.

When you step on a can and crush it, you have forced a physical change. However, you only changed the shape of the can. It wasn't a change in the state of matter because the energy in the can did not change. Also, since this was a physical change, the molecules in the can are still the same molecules. No chemical bonds were created or broken.

When you melt an ice cube (H ₂O), you have a physical change because you add energy. You added enough energy to create a phase change from solid to liquid. Physical actions, such as changing temperature or pressure, can cause physical changes. No chemical changes took place when you melted the ice. The water molecules are still water molecules.

Chemical changes happen on a much smaller scale. While some experiments show obvious chemical changes, such as a color change, most chemical changes are not visible. The chemical change as hydrogen peroxide (H ₂O ₂) becomes water cannot be seen since both liquids are clear. However, behind the scenes, billions of chemical bonds are being created and destroyed. In this example, you may see bubbles of oxygen (O ₂) gas. Those bubbles are evidence of the chemical changes.

Melting a sugar cube is a physical change because the substance is still sugar. Burning a sugar cube is a chemical change. Fire activates a chemical reaction between sugar and oxygen. The oxygen in the air reacts with the sugar and the chemical bonds are broken.

Iron (Fe) rusts when it is exposed to oxygen gas in the air. You can watch the process happen over a long period of time. The molecules change their structure as the iron is oxidized, eventually becoming iron oxide (Fe ₂O ₃). Rusty pipes in abandoned buildings are real world examples of the oxidation process.

Some chemical changes are extremely small and happen over a series of steps. The resulting compounds might have the same number of atoms, but they will have a different structure or combination of atoms.

The sugars glucose, galactose, and fructose all have six carbon atoms, twelve hydrogen atoms, and six oxygen atoms (C ₆H ₁₂O ₆). Even though they are made of the same atoms, they have very different shapes and are called isomers. Isomers have atoms bonded in different orders.

Each of the sugars goes through different chemical reactions because of the differences in their molecular structure. Scientists say that the arrangement of atoms allows for a high degree of specificity, especially in the molecules of living things. Specificity means the molecules will only work in specific reactions, not all of them. For example, your body uses glucose as an energy source. If you eat galactose molecules, they need to be converted into glucose before your body can use them.

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Chem4Kids.com: Matter: Chemical vs. Physical Changes

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It is important to understand the difference between chemical and physical changes. Some changes are obvious, but there are some basic ideas you should know. Physical changes are usually about physical states of matter. Chemical changes happen on a molecular level when you have two or more molecules that interact.

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Physical and Chemical Properties and Changes Webquest
Task 1: Questions #1-11 (Quick link)

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Physical-Chemical Properties and Changes Webquest
***USE THIS AS A STUDY GUIDE FOR THE QUIZ FRIDAY!

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States of Matter & Phase Changes Review WS
QUIZ: States of Matter 9/18

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STATES OF MATTER AND PHASES CHANGES REVIEW

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Bubbles on Bottles Lab

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States of Matter Webquest: Quick link to website

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Chem4Kids.com! This tutorial introduces states of matter. Other sections include elements, the periodic table, reactions, and biochemistry.

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States of Matter Webquest

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States of Matter-PPT

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States of Matter Foldable (instructions)

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Test Autopsy:  MATTER TEST #1
ANSWER KEY-Explanations DUE TOMORROW AM!  (1 point per question)

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Pure Substances and Mixtures Review Sheet
**TEST NEXT WEDNESDAY 9/5

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Pure Substances and Mixtures Review Sheet 2018

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Pure Substances and Mixtures-PPT

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Pure Substances and Mixtures Reading Handout (use for foldable)

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Pure Substances and Mixtures Foldable Directions

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