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1st Grading

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Kristine M. Gatmaitan                   Science
9-Alexandrite
Answers in Module 1-6 :
 Module 1 (Lesson 1) Looking back
1. Digestive System
2. Respiratory System
3. Circulatory System
 Activity 1.1
1. Nasal cavity
2. Pharynx
3. Larynx
4. Trachea
5. Lungs
6. Alveoli
7. Bronchi
8. Diaphragm
 Activity 1.1 Questions
1. The main function of our Respiratory System is to help us breathe.
2. Our lungs work by bringing fresh oxygen into our body.
3. The 2 gases that exchanged into our respiratory system is the oxygen and carbon dioxide.
 Critical thinking
Some animals, Such as amphibians and earthworms can use their skin to exchange gases.
Fish and other Aquatic organisms use gills to take up oxygen dissolved in the water and diffuse carbon dioxide out of the bloodstream.
Some insects utilize a tracheal System that transports the oxygen from the external environment through openings called spiracles.

 Activity 1.2
Parts :                                Function :
1.Nose          Pull air outside the body into the respiratory System.

2.Pharynx Pharynx       Deliver air from your mouth and nose to the trachea.
3.Lungs Remove oxygen from the air and pass it to the blood.
4.Trachea Connecting your throat and lungs.

5.Diaphragm Diaphragm  pulls in and push out air

6.Alveoli Exchanging oxygen and carbon dioxide.
7.Bronchioles Small branches of bronchial tubes that lead to alveoli.
8. Ribs Protecting lungs and heart.
Activity 1.2 Questions
1. Oxygen breathe from the air passes through alveoli into the blood and it travels to the tissues throughout the body.
2. The diaphragm is the primary muscle that is used  in the respiration.
3. Nasal cavity, pharynx and trachea.
 Checking your Understanding
1. Cillia is the tiny hair on our nose it protects the nasal passageways and other parts because it filters the dust.
2. Because Reb take several and deep breathes he experience hyperventilation this happens when we inhale much deeper and take much faster breaths.
 Module 1 (lesson 2) Looking back
1. Bronchi
2. Trachea
3. Alveoli
 Activity 2.1 Questions
1. Heart, blood and blood vessel
2. The Circulatory System delivers oxygen and nutrients it takes away wastes.
3. Systematic circulation, Pulmonary circulation and Portal circulation.

 Activity 2.2
Key parts :                                  Role :
1. Blood vessels Tube that circulates blood through the body.
2. Arteries Kind of blood vessels.
3. Veins Kind of blood vessels.
4. Capillaries Kind of blood vessels.
5. Blood Regulates body temperature.
6. Heart It pumps oxygenated  blood to the body.
 Activity 1.2 Questions
1. Our heart works by pumping oxygen and nutrient-rich blood to the body to sustain life.
2. It circulates blood through our veins like
Mechanical it also pump.

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Kristine M. Gatmaitan               Science
9-Alexandrite
Answers in Q1 Module 2 :
 Pre test :
1. B
2. B
3. B
4. D
5. A
 Looking back :
Function :             System :           Organ :
1.Exact location of gas exchange (carbon dioxide and oxygen). Respiratory System Alveoli
2.Carries oxygen to different parts of the body. Circulatory
System Red blood cells
3.Pumps blood through the body. Circulatory
System Heart
4.Compose of air sacs controlling breathing process. Respiratory System Trachea or Wind pipe
5.Tubes in the body where  blood flows. Circulatory System Blood vessels
6.Transmit air from upper to lower tract and vice versa. Respiratory System Lungs

 Activity 1: Effects of smoking :
Larynx cancer circle
Esophagus cancer circle
Myocardial Infarction box
Systemic atherosclerosis  box
Bladder cancer
Oral cavity cancer  circle
Lung cancer  circle
Chronic bronchitis circle
Emphysema circle
Peptic ulcer
Pancreas cancer
 Activity part 2 (bridge map)
1. B
2. B
3. B
4. A
 Activity 2 Odd one out (Lab- Diagnostic)
Disorder/Disease :          Not needed :
1. Lung Cancer                 Biopsy
2. Atherosclerosis           Sputum test
3. Pneumonia                 Cardiac ultrasound
4. COPD                           Echocardiography
5. Stroke                           Blood Test
 Activity 3 Lifestyle is the key
1. 👎
2. 👍
3. 👍
4. 👎
5. 👍
6. 👍
7. 👎
8. 👍
9. 👍
10. 👍
 I am Healthy life style advocate :
● My advocacy is about maintaining healthy life style and having fun doing exercise.
● My advice or healthy life style tips is staying hydrated, eating nutritious food, daily exercise and Enough time of sleep.
● Educating them and Convincing them.
 Checking your Understanding
1. It Causes lung cancer because they are exposed by inhaling.
2. Because once they start and keep on doing smoking they can not stop because they keep on doing smoking.
3. Instead of smoking he/she should find a hobby and try to forget smoking by eating candies.
 Post test :
1. C
2. D
3. D
4. C
5. D

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My Respiratory System Model

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Groupmates

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My DNA model

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DNA is a short term for deuxyribonucleic acid the definition of DNA in a short way is the DNA is the molecule that contains the genetic code of organisms. It’s important function is it is the basic  heredity material present in all the cells of an organisms and basically provides a blue print for the cells function, growth, reproduction and death. DNA also is in each of cells in the organisms and tells cells on what protein to make. They called it Molecule of life because in our DNA all organisms have their genetic material codified as DNA and that it’s how it works. Types of DNA chemical component are: phosphate, a sugar called deoxyribose, and four nitrogenous base: adenine,guanine,cystosine and thymine. Two of the bases adenine and guanine has double- ring structure characteristics of a type of chemical called purine. About the importance of our DNA it’s really important in terms of Inheritance and coding for proteins and genetic instruction guide for life and it’s processes and it also hold the instruction for an organisms each cells development, reproduction and ultimately death.  Another reason Why  important it’s because it is provital to our growth, reproduction and health.

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Kristine M. Gatmaitan             Science
9-Alexandrite
Reaction Video
Documentary: Ang Pagsubok ng Pamilya Labrador
I watched the documentary and felt emotional I’ve learned so many things after I watched the video things about life, Faith,  Their disorder and love. We all now that there are so many challenges in life to be frank we are all facing different problems in life but the problem of sibling’s Bobong, Marlon and Eliezer seems different. Getting sick is normal but having an uncomfortable life with their disorder is Heartbreaking and painful to watch. As I’ve watched them I see their way of living it’s full of positivity and love that’s why I thought of them as a Positive and kind people. In their case they are full of love that’s why their never think of complaining because they believe, they have faith which is not all of us have. When the Jessica Soho team help them they consult an expert and it says that they have an X-linked Dystonia Parkinsonism and it was common in Male. The expert says that it is abnormal that is why they have weird postures which they can’t help. They said that the first symptoms they all have was flu and chills and after that they start moving different also one of them has his tongue out and can’t  talk. In their stories the 2 brothers was left by their partners because of their disease that is not their fault. Living in such case was miserable and painful but they keep on because life is a gift.

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Poster to promote the conservation of 1 philippine endangered philippine species

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Slogan to promote the conservation of 1 philippine endangered philippine species

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Flyer I made about how the human body can be filled with energy

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Flyer I made about how the human body can be filled with energy

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Group Activities

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Score in this Activity: 4 stars

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2nd Quarter

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NAME: Kristine M.Gatmaitan
GRADE & SECTION: 9-Alexandrite
DATE: January 25,2021 Monday
Teacher: Ma’am Charm Mallari
Electron Configuration and Quantum Numbers
I. Indicate the number of protons, neutrons, electrons, atomic number, and mass number.
ELEMENT Atomic Number, Z Mass Number (round off A) #p +
PROTONS #e –
ELECTRONS #n 0
NEUTRONS
Titanium     22 48 22 22 26
Rubidium    37 85 37 37 48
Ruthenium 44 101 44 44 57
Gallium       31 70 31 31 39
Xenon         54 131 54 54 77
II. Write the electron configuration.
ELEMENT Electron Configuration
Ca 1s²2s²2p⁶3s²3p⁶4s²
Au 1s²2s²2p⁶3s²3p⁶3d¹⁰4s²4p⁶4d¹⁰5s²5p⁶4f¹⁴5d¹⁰6s¹
Y 1s²2s²2p⁶3s²3p⁶3d¹⁰4s²4p⁶4d¹5s²
Sn 1s²2s²2p⁶3s²3p⁶3d¹⁰4s²4p⁶4d¹⁰5s²5p²
Zn 1s²2s²2p⁶3s²3p⁶3d¹⁰4s²
Cu 1s²2s²2p⁶3s²3p⁶4s²3d⁹
Pd 1s²2s²2p⁶3s²3p⁶4s²3d¹⁰4p⁶5s⁰4d¹⁰
III. Write the shorthand electron configuration.
ELEMENT Shorthand Electron Configuration
Na [Ne] 3s¹
K [Ar] 4s¹
Br [Ar] 4s² 3d¹⁰ 4p⁵
Sr [Kr] 5s²
Og [Rn] 5f¹⁴ 6d¹⁰ 7s² 7p⁶
IV. Indicate using a check mark the possible set of quantum numbers.
Answers:
1. Check
2.
3.
4. Check
5.
V. Complete the table.
Element Shorthand Electron Configuration  # valence electrons Period (in the periodic table) Group or Family (in the periodic table) Block {s, p, d or f block}

•Phosphorus [Ne] 3s² 3p²  5 Period 3 Group 15 p-block
•Iodine [Kr] 4d¹⁰ 5s² 5p⁵     7 Period 5 Group 17  p-block
•Potassium [Ar] 4s¹              1 Period 4 Group 1    s-block
/cj

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Kristine M. Gatmaitan                             Science
9-Alexandrite

Asynchronous Assignment:
1.State 5 reasons why the mammoth elephant become extinct
Answers:
1.Woolly mammoth became extinct. They are once common in North America and Siberia They were driven to extinction by Environmental factors and possibly human hunting about 10,000 years ago.
2. Because of rising sea levels, a population of woolly mammoths  became trapped on Wrangel island and continue living there until their demise about 3,700 years ago.
3. The main cause of the extinction of mammoths, mastodons and other megafauna of the Americans were caused by overhunting by Paleoindians it has been argued that climatic change is responsible for mammoth and mastodon extinction.
4. The woolly mammoth co-exsisted with early humans, who used it’s bones and tusk for making art, tools, dwelling and the species was also hunted for food.
5.Mammoth (genus Mammuthus), any member of an extinct group.
2. Name as many human activities that threaten the biodiversity
Answers:
● destruction                ●  fragmentation of Habitats
● degradation               ●  pollution
● deforestation             ● burning fossil fuels
● Air pollution               ● Land pollution

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Kristine M. Gatmaitan                      Science
9-Alexandrite
Answers in Quiz :
 Critical thinking Questions
1. Letter B shows Alcoholic fermentation while letter C illustrates Lactic acid Fermentation. Letter B shows a picture of wine and letter C shows picture of yogurt that is produced from Lactic acid Fermentation.
2. Fill out table below ( Answers )
Photosynthesis Respiration
1.Raw materials Carbon dioxide and Water Glucose and Oxygen
2.End products Glucose and oxygen ATP
3.Chemical Equation 6CO2 + 6H2O → C6H12O6 + 6O2 C 6 H 12 O 6 + 6 O 2 --> 6 CO 2 + 6 H 2 O + ATP
4.Part of the cell where it occurs Chloroplast Mitochondria
 Critical thinking Questions
Answer: Photosynthesis converts carbon dioxide into oxygen and glucose While cellular respiration converts oxygen and glucose into water and carbon dioxide. Water and Carbon dioxide are by-products and ATP is the energy that is transformed from the process.

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Kristine M. Gatmaitan              Science
9- Alexandrite
Answers in Module 6 :
•Puzzle (Across)
1. Carbon Dioxide
3.Oxygen
4. NHDPH
6. Water
•Puzzle (Down)
1. Calvin Cycle
2. Oxygen
5. Autotroph

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Kristine M. Gatmaitan              Science
9-Alexandrite
Individual Work Home-Based
Answers: Summative Assessment
1●Contrary to the extinction, when the population has Increased in number and doubled the other population there will be an imbalance of nature. And there will be a competition for resources and superiority. The ecosystem will fall and least  species might probably became extinct.
2.●For the plants with high density the limiting factors like sunlight, water and nutrients are lower due to high population in the area.
3.●The soy beans might get damage and the products of the farmer will decrease.
4.●When trees are cut down and the animals migrate to other places the diversity of the area decreases.  When even a small rain forest is cut down it might result in extinction of a species since all animals have specialized habitats.
5.●The destruction of their habitats by human activities like cutting down forest and converting lands into fields for farming. Due to human Activities populations of many species have become small and isolated.

II.
1. 100 ants in 8m²
2. 26.7
3. 10 monkeys needed to live
III.
1. C
2. B
3. A
4. A
5. A

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Quarter 2 SCIENCE 9 Learner Activity Sheets (LAS)

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Quarter 2 SCIENCE 9 Learner Activity Sheets (LAS)

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SCIENCE 9 Learner Activity Sheet (LAS) Quarter 2 Week 1

Name of Learner: Kristine M. Gatmaitan       Grade Level: 9 Section: Alexandrite
Name of Teacher: Ma’am Charm Mallari Date:

LEARNING ACTIVITY SHEET
Electron
Background Information for Learners
Electron is a subatomic particle discovered by Joseph John Thomson in 1897 by experimenting on cathode ray tube or Crookes tube. The electrons are distributed in orbitals, starting from the lowest energy orbital to the highest energy orbital. Mnemonics for electron configuration is helpful.
Flame test is a laboratory procedure to identify the metal present in the salt. Boron in boric acid is a non-metal that emits a green flame. When the atom gained energy by heating or other processes, the electron jumps to a higher energy orbital, leaving its ground state. From its excited state, the electron will release energy through lights/photons with a particular color or x-rays in order to go back to its ground state.
Learning Competency with Code
The learners should be able to explain how the Quantum Mechanical Model of the atom describes the energies and positions of the electrons. (S9MT-IIa-22)
Directions/Instructions:
Read the paragraphs and answer the questions carefully.  Please refer to the Science 9 Learner’s Material pp. 98-110.
Materials:  pen, papers, Science 9 Learner’s Material
Procedure:
1. Watch the YouTube video on Flame Test by 99Chemicals https://www.youtube.com/watch?v=nS77SPywI9w and answer Q1-Q3. Complete the table Color of Flame of Metal Salts on page 101.
2. Explain briefly Figure 3 on page 103.
3. Study the table below and answer Q13-Q15 on page 109.
4. Answer the Summative Assessment on page 110.

SCIENCE 9 Learner Activity Sheet (LAS) Quarter 2 Weeks 2-3

Name of Learner: Kristine M. Gatmaitan
Grade Level: 9
Section: Alexandrite
Name of Teacher: Ma’am Charm Mallari
Date:

LEARNING ACTIVITY SHEET
Chemical Bonds and Ions
Background Information for Learners
There are three types of chemical bonds: metallic, ionic, and covalent.
linear
linear
In covalent bonding, if there is equal sharing of electrons and the difference in the electronegativities of the 2 atoms sharing electrons is 0 to 0.4, then the bond is nonpolar covalent or pure covalent. If there is unequal sharing of electrons and the difference in the electronegativities of the 2 atoms sharing electrons is 0.5 to 1.8, then the bond is polar covalent. Generally, only non-metals are involved in covalent bonding except in compounds like BeF2 and AlCl3, which are covalent.
Learning Competency with Code
The learners should be able to explain how ions are formed (S9MT-IIe-f-16) and recognize different types of compounds (ionic or covalent) based on their properties such as melting point, hardness, polarity, and electrical and thermal conductivity. (S9MT-IIb-14)
Directions/Instructions:
Read the paragraphs and answer the questions carefully.  Please refer to the Science 9 Learner’s Material pp. 111-126.
Materials:  pen, papers, Science 9 Learner’s Material
Procedure:
1. Do Activity 3 by writing 5 examples of ionic bonding on page 118. Use Lewis electron dot structures (LEDS). Indicate the ions formed like Ca2+ and O 2-. Answer Q9-Q14.
2. Do Activity 4 by completing Table 2 and answering Q15-Q18 on pp. 120-121.
BOND TYPE DIFFERENCE IN ELECTRONEGATIVITIES
Nonpolar or Pure Covalent 0 to 0.4
Polar Covalent 0.5 to 1.8
Ionic Higher than 1.8
3. Do Activity 5 by completing Tables 3, 4, and 5 and answering Q19 on pp. 121-122.
4. Which melts when heated? Put a check mark.
Compound
Salt
Sugar
Vetsin
Candle wax Check
5. Which are soluble in water? Put a check mark.
Compound
Salt Check
Sugar Check
Vetsin
Candle wax
6. When dissolved in water, which is a conductor of electricity? Put a check mark.
Compound
Salt              Check
Sugar
Vetsin          Check
Candle wax Check
7. Identify the type of bond present.
Compound Type of Compound {ionic compound, polar covalent compound, or nonpolar covalent compound}
Salt                Ionic compound
Sugar             Polar covalent
Vetsin            Polar covalent
Candle wax   Non-polar covalent

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Kristine M. Gatmaitan                Science
9-Alexandrite                               Ma’am Charm Mallari
Quarter 2-Module 8: Mole Concept
What I know:
1. B
2. D
3. A
4. D
5. B
6. A
7. A
8. A
9. D
10.B
Matching Type:
1. A
2. C
3. D
4. B
5. F
6. E
Activity 1 “ Tama o Mole.li:
1. 6.02×1023 2.
2. 9.9632×10-¹⁸
3. 251.33 grams
4. 3.39×1023
Activity 1 What’s New:
Name               Symbol    Mass
1. Carbon        C            12.01
2. Sodium       Na         22.98
3. Potassium   K           39.09
Element Name  Mole    Molar Mass    Grams (g)
1. Sodium        1             22.98              23.00
2. Hydrogen    1             1.01                1.01
Assessment:
1. C
2. B
3. D
4. A
5. A
6. B
7. C
8. D
9. A
10. C

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Kristine M. Gatmaitan                   Science
9-Alexandrite
Performance task:
1.Create any type of salad and list down the ingredients you’ve used.
● Ensaladang talong
Eggplant
Onion
Tomato
Bagoong
2.Classify each ingredients into these categories:
Ionic Compound:

Polar Covalent Compound:
Bagoong
NON Polar Covalent Compound:
Eggplant
Onion
Tomato

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NAME: Kristine M. Gatmaitan
Grade & Section: 9-Alexandrite
Subject: Science

Dingdong Performance task:
Ingredients:        No. of Bits:    Percent Composition:
Cornick                         12                       11%
Green Peas                   23                      21%
Cracker Nuts                24                      22%
Peanuts                         28                      25%
Fava beans                    24                      22%
Total No. of Bits= 111
Computation:
Green peas- 23
Cornick-12
Cracker Nuts- 24
Fava beans-24
Peanuts- 28
Total: 111
Green peas= 23÷111×100= 21%
Cornick=12÷111×100=11%
Cracker Nuts=24÷111×100=22%
Fava beans=24÷111×100=22%
Peanuts= 28÷111×100=25%

Guide Question ( Answer )
1.  Highest: Peanuts and the Lowest: Cornick.
2. I think No.
3. It’s hard to make and I think they process it carefully.

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Dingdong Performance task

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Groupmates

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3rd Grading

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Kristine M. Gatmaitan                Science
9-Alexandrite                               Ma’am Charm Mallari
Identify The Type of Eruption
1. B
2. C
3. A
4. C
5. C

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Kristine M. Gatmaitan                Science
9-Alexandrite                               Ma’am Charm Mallari
QUARTER 3- MODULE 1 (ASSIGNMENT)
●Pre-Test:
1. A. Magma
2. D. Crater
3. A. Pyroclastic
4. A. They always move Rapidly
5. B. Cinder cone
●Looking back to your Lesson:
1. Ash Cloud
2. Dike
3. Lava
4. Throat
5. Summit
6. Vent
7. Crater
8. Conduit
9. Magma

●Activity 1: Volcanic Parts:
1. C. Hot molten rock with silica and gases found beneath the surface of the Earth.
2. E. Mouth of the volcano that surrounds the vent.
3. A. Hot molten rock ejected from a Volcano.
4. B. An opening in the Volcano which Lava comes out.
5. G. A storage of magma in the Volcano.
6. D. A small volcanic material with size of less than 2 millimeters and release in air by explosion.
7. F. A passage or pipe in the Volcano where Magma travels up.
●Activity 2: Identifying Concepts:
1. Composite
2. Lava
3. Magma Chamber
4. Active
5. Potentially Active
6. Ring of Fire
7. Shield
8. Krakatoa
9. Inactive
10. Mayon
11. Conduit
12. Magma
●Activity 3: Shape of Volcanic Cones:
1. Characteristics    Shield
■ Figure Number       1
■ Shape                     Shape like a bowl or Shield
■ Type of Eruption  only explosive if water somehow
gets into the vents.
■ Gas content          with low gas content
■ Silica content       very low on silica
■ Viscosity                low Viscosity

2. Characteristics    Cinder
■ Figure Number       2
■ Shape                      Shape like a bowl or Shield
■ Type of Eruption   Explosive Eruption
■ Gas content           ash
■ Silica content        low silica level
■ Viscosity                Spheroidal and spindle shaped
Bomb are common at Cinder Cones
3. Characteristics     Composite or Stratovolcano
■ Figure Number          3
■ Shape                         Shape like a bowl or Shield
■ Type of Eruption      Highly Explosive
■ Gas content              Volcanic ash
■ Silica content           The Magma forming is often felsic
Having high-to-intermediate
Levels of Silica
■ Viscosity                    High viscosity

●Checking Your Understanding:
1. Vent, Flank, Lava, Crater, Mouth, etc..
2. They can be differentiate by their location. When Geologists refer to Magma, they’re talking about molten rocks that’s still trapped underground. If this molten rocks makes it to the surface and keeps flowing like liquid, it is called Lava.
3. It can profoundly change the landscape, initially through both destructive and constructive processes, which destroy vegetation and change the physical nature of the surface.

●Post-Test:
1. A
2. C
3. D
4. C
5. A
6. B
7. C
8. D
9. D
10. C

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Kristine M. Gatmaitan                Science
9-Alexandrite                               Ma’am Charm Mallari

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Kristine M. Gatmaitan            Science
9-Alexandrite                            Ma’am Charm Mallari
LAS 4 (Answer) :
A. Stargazing :
1. Orion
2. Pegasus
3. Lyra
4. Cancer
B. Guide Questions :
1. The most prominent northern Spring constellations are Ursa Major, Boötes, Leo, Cancer, Virgo and Hydra.
2. This is caused by Earth’s Orbit around our sun. In Summer, viewers are looking in different direction in space at night than they are during the winter.
3. As Earth Rotates with an axis that is pointed in the direction of the North Star, appears to move from east to west in the Sky.
4. They can people to recognize stars in the sky.
Used to help keep track of the calendar.

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Kristine M. Gatmaitan     Science
9-Alexandrite                     Ma’am Charm Mallari
Week 5 LAS :
A.   Science Story
Guide Questions:
1. When Anna went to the Philippines, she experienced a sudden temperature change.  What factor affects its climate change?
Answer: travelling.
2. How does latitude affect the climate in relation to Anna’s travelling experience?
Answer:
3. How did Sierra Madre mountain ranges help minimize the impact of the typhoon?
Cite the factors.
Answer:
4. How do you compare climate on land and climate near the sea ?
Answer: it’s colder near the sea than the land.
5. Why do you think some locations that are distant from bodies of water have extreme
climate?
Answer: I think being near the sea may help.
B. Global Climate Phenomena
1. Global Phenomena: Global Warming
□ Description: A recent and ongoing rise in global average temperature near the Earth’s surface.
□ Causes: Burning Fossil Fuels, Deforestation
□ Effects: Melting Glaciers, Increase of heat
2. Global Phenomena: Climate Change
□ Description: Long-term change in the average weather patterns that have come to define Earth’s local, regional and global climates.
□ Causes: Volcanic Eruption, Burning Coal
□ Effects: Biodiversity depletion, rising sea levels
3. Global Phenomena: El Nińo
□ Description: This happens when the temperature in the eastern Pacific rises above normal.
□ Causes: Weaker trade winds, Land is warmer than sea
□ Effects: Drought, Health Problems
4. Global Phenomena: La Niña
□ Description: climate pattern that describes the cooling of surface ocean waters along the tropical west coast of South America.
□ Causes: intense upwelling of cold water, Sea surface temperature
□ Effects: Extreme flooding, Stronger Winds push water into western Pacific
Think and Reflect ( Answer ):
For me I think that travel ban is effective because it lessen the case of people being positive in Covid-19. Although there are still many cases but it helps a lot to stop the spread of the virus.
C. I could, We could!
Global Warming Causes:
Deforestation:
I could use ecofriendly products so it will not cause Deforestation.
The government could grow trees in the forest.
The world could help by doing the same.

Burning fossil fuels:
I could buy equipment that uses less electricity.
The government could limit the use of air conditioning
The world could help each other do the same.

Vehicle pollution:
I could teach others what to do to help stop vehicle pollution.
The government could drive less.
The world could choose fuel efficient vehicles

Quarrying:
I could do tree planting
The government could encourage others to plant trees
The world could plant trees.

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Kristine M. Gatmaitan           Science
9-Alexandrite
Q4 LAS 1 ( Projectile Motion ) :
I. Understanding Projectile Motion
A. (Answers)
1. Trajectory
2. Projectile Motion
3. Vertical Velocity
4. Horizontal Velocity
5. Height
6. Range
B. (Answers)
1. Coin A will reached the floor first Because it’s facing the ground.
C. ( Table)
Motion       Vertical M.   Horizontal M.   Acted upon
Free Fall                                                             ✔
Projectile                                                           ✔

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Kristine M. Gatmaitan          Science
9-Alexandrite
Q4 LAS 2 ( Momentum and Impulse ) :
I. Momentum
Object         Mass        Velocity      Momentum
( kg )          ( m/s )         ( kg•m/s )
1.Rolling           2               3.5                   7
Ball
2.Moving         1 524         11.8                18 000
Car
3.A person       50
At Rest
4.A baseball     0.5            5                       2.5
Is thrown in
The air
5. An airplane                   76
Taking off

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Kristine M. Gatmaitan          Science
9-Alexandrite
Q4 LAS 3 ( Conservation of Mechanical Energy ) :
I.
● At A Maximum Height ( 1.20 m )
E=  7.3 J
PE= 7.3 J
KE= 0 J
● At ( 0.60 m )
E =  7.2 J
PE=  3.7
KE=  3.5 J
● At ( 0m )
E =   1.5 J
PE=  0 J
KE=  1.5 J

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Kristine M. Gatmaitan        Science
9-Alexandrite
Q4 ( Week 3 Change in Momentum ) :
Activity Card 1
1. Fire
2. House
3. Car
4. Stop light
5. Box
6. Cross
Activity Card 2
1. >
2. <
3. =
Activity Card 3
1. ELASTIC
2. INELASTIC
3. COLLISION
4. IMPULSE

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Enrichment card:
• My drawing a sport that shows changes in momentum. Baseball is a sports that I draw that shows changes in momentum.

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My picture showing transformation of energy
● Electrical to Heat energy. In my picture i plug the electricity to open the lampshade so that it will give light. The electricity flow and it gives light or heat energy.