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RimstarOrg

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An addiction to science, electronics, making stuff, understanding how things work, and passing it all on to you... You can support RimstarOrg using Patreon a...

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3.1 Grade 7 Describe and explain a testable Sample

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3.1 Grade 7 Describe and explain a testable Sample

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Step 1: Create a specific statement  containing both Dependent Variables and Independent Variables.
Example:
Increasing the amount of phosphorus based  Fertilizer (Independent Variable) used by farmers in the area is collected in the pond will have an effect  on the reproduction and population growth of the algae (Dependent Variable).

Step 2: Search for any scientific reasoning (articles, law, theories or any scientific explanation) that supports your hypothesis

Scientific Reason
Agricultural Phosphorus based fertilizer and
have been linked to algae growth in many farm areas. When the balance is lost and phosphorus levels are too high, the excess phosphorus contributes to excess algal growth. Certain types of blue-green algae like Microcystis and other species may produce toxins that are harmful to both humans and wildlife. Excess phosphorus also leads to the development of mats of floating or attached algae that form unattractive green tints, slimes or threads and are often quite odorous. When the algae die, the mats sink to the lake bottom and decay, creating low-oxygen conditions that are fatal to fish and some other aquatic organisms.

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Ideas for experiment

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Imagination Station, Toledo's hands-on science center, is a vital non-profit organization that is an integral part of Toledo's economic, educational and social landscape. Imagination Station provides a critical layer of science enrichment by serving as an educational partner for teachers, schools and parents.

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If your experiment requires comparison of data to find out a result you need to create to groups where the variables are compared.

Example: 4 similar glass jar with the same amount of water taken from the pond and the same amount of algae. However, the other two glass jar have more fertilizer and the other two glass jar that do not have fertilizer.

Experimental Group: Part of your experiment where u change a factor or variable
Example:  Two glass samples of petri dishes containing the same amount of water and algae with additional fertilizer

Glass 1 = 50 grams of phosphorus base fertilizer added

Glass 2 = 25 grams of phosphorus base fertilizer added

Controlled Group  Example:  Two glass samples of petri dishes containing the same amount of water and algae with no additional fertilizer

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Select experiment that is safe

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On this channel you will find some interesting chemical reactions and many amazing stuff!

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ideas for model building

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Thanks for stopping by! My name is Ben. I turn boring things into awesome things. I've been creating and filming projects and science experiments since 2006 and have had the amazing privilege of seeing them bring happiness to millions of people.

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Ideas for an experiment and models to build

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At HouseholdHacker, we solve your common everyday problems and create things utilizing items you find around your house. You might say we try to bring out the MacGyver in all of us. From kitchen hacks and tricks to getting rid of ants; we do it all.

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Ideas for an experiment and make sure to choose safe experiments

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"grant thompson" "the king of random" "life hack" "mad science" projects power create household how-to science crazy educational funny education hacker "most viewed" insane entertain entertainment hobby craft thekingofrandom thekingofrandom.com 01032010814

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I'm Grant Thompson - "The King of Random" and I make videos dedicated to exploring life through all kinds of life hacks, experiments, and random weekend proj...

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You may print and distribute up to 200 copies of this document annually, at no charge, for personal and classroom educational use. When printing this document, you may NOT modify it in any way. For any other use, please contact Science Buddies.

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Worksheets for Kids & Free Printables | Education.com

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Search or browse hundreds of free middle school science fair project ideas that are fun, exciting, and appropriately rigorous for middle school students.

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Example Groups, two glass jar experimental and two glass jar controlled

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Example Groups, two glass jar experimental and two glass jar controlled

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Safety instructions
This is the part the you have to remind yourself and others who will perform your experiment about the precaution that they need to follow.

Example:
* Please be careful in handling fertilizer for they have combustable properties
* Wear gloves in getting a sample water from the pond to avoid contamination
*place your experimental and controlled glass jars in safe areas

Materials and tools
This is the part that you have to list down materials and tools that u need for your experiment and be specific by providing the specification of the materials

Bad Example:             Good example
* Glass jar                    * 250 ml glass jar or beaker
* Fertilizer                    * 50 grams Phosphorus base
Fertilizer

Steps
This is the part that you have to explain on what and how to do your experiment. The steps should be clear, simple to follow, logical and sufficient. Start with the verb.

Write the steps from reading the safety notes, building your device, doing the experiment, manipulating the variables until data gathering, analysis, and conclusion

Example:
* Read the safety instructions
* Organized your materials
* collect 1 litter of pond water containing green algae
* clean thoroughly the for glass jar
* label the two jar "experimental with 10 grams of fertilizer"
* label the other two remaining jars "controlled no fertilizer"
* Add 10 grams of fertilizer in each jar under experimental with 10 grams.
* take photos of four jars on a daily basis for the span of one week.

Extreme example of going through a door

Your healthcare provider has prescribed a walker for you. To use your walker, you need to learn new ways to get around. Use these instructions to help you get through doorways with your walker. Avoid revolving doors—look for regular doors or disabled entrances instead. Follow any additional instructions your healthcare provider has given you (for instance, the basic guidelines for using your walker).

Pushing doors open
Pulling doors open

General guidelines

General tips for using a walker include:

Watch for obstacles, such as area rugs, debris, or anything that might catch on the bottom of the walker.

Keep your hands free by using a backpack, fanny pack, apron, or pockets to carry things.

To push a door open

Tips for pushing open a door when using a walker include:

Get as close to the door as possible.

Push the door hard so that it swings open.

Move the walker into the doorway to block the door from closing.

Walk forward through the doorway, using the walker to hold the door open as you pass through.

To pull a door open

Tips for pulling open a door when using a walker include:

Get close to the door, but leave enough room for the door to open toward you.

Move your walker so that it is at your side and not blocking the door.

Keeping one hand on the walker, use your other hand to pull the door so that it swings open.

Move the walker into the doorway and hold it firmly.

The walker will block the door from closing completely.

Walk forward through the doorway.

The walker will hold the door open until you’re through.

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3.1Identifying  and Outlining/Describing Variables. 

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3.1Identifying  and Outlining/Describing Variables. 

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Variables are things that you change, measure or remains the same in your experiment.

Dependent Variables is what your are trying to measure in your experiment
Example: The growth and amount of algae

Independent Variable is  the condition or materials that you change to test during your experiment
Example: The amount of fertilizer

Constant Variable is the materials or condition that are the same in every experiment in all the groups that will not have an effect what you are trying to measure
Example:
* water used to grow the algae (To make sure that water quality is not a factor affecting the growth of algae)
* The specie of Algae (To make sure that only one type of algae tested)
* The type of Fertilizer (To rule out type of variety and ingridients of fertilizer used in the experiment)
* The Container used to hold the experiment

Grade 6  MYP criteria B, Strand III, Year 1
outline how to manipulate the variables, and outline how sufficient, relevant data will be collected

Example :
Dependent Variables:The growth and amount of algae in the glass jars will be counted using photos taken from the beginning and after the experiment.

Independent Variable:The amount of fertilizer added in experimental group at the beginning of the experiment.

Grade 7  MYP criteria B, Strand III, Year 3
describe how to manipulate the variables, and describe how sufficient, relevant data will be collected

Examples:

Dependent Variables: This experiment will measure the growth and the amount of algae on the four glass jars.

At the beginning of the experiment photos of petri dishes an containing equal amount of water and algae of both controlled and experimental groups will be taken and arrange on a table before adding the additional fertilizer

After a week photos will be taken again and arrange on a table to be compared to the previous photo is algae growth is visible in both groups

Visual analysis will be used to examine if growth  is occurring

Independent Variable: This experiment will test if a certain amount of fertilizer will have an effect on the growth of the algae

At the beginning of the experiment the following petri dishes under experimental groups  will receive to test if increasing the amount of fertilizer is the cause of excessive growth of the algae.

50 grams of fertilizer in glass 1

25 grams  of fertilizer in glass 2

Constant Variables : This experiment will equally maintain the following variables in all groups

* water used to grow the algae

* The specie of Algae

* The type of Fertilizer

The Container used to hold the specimen

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Is an educated guess tentatively explaining the result. In other words,

Step 1 give an explanation on why do you think your prediction is accurate stating both dependent and independent variables
Example:
The addition of Fertilizer (Independent Variable) to the pond will affect the amount and growth of algae (Dependent Variable)  in the pond.

Step 2  Provide evidence or Scientific reasoning/explanation that supports your prediction
Example:
Agricultural Phosphorus based fertilizer
have been linked to algae growth in many farm areas.

When the balance is lost and phosphorus levels are too high, the excess phosphorus contributes to excess algal growth. Certain types of blue-green algae like Microcystis and other species may produce toxins that are harmful to both humans and wildlife. Excess phosphorus also leads to the development of mats of floating or attached algae that form unattractive green tints, slimes or threads and are often quite odorous. When the algae die, the mats sink to the lake bottom and decay, creating low-oxygen conditions that are fatal to fish and some other aquatic organisms.

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2.1 MYP Criteria B Strand II Year 1 Sample

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2.1 MYP Criteria B Strand II Year 1 Sample

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Grade 6 outline a testable prediction using scientific reasoning

Example:
If the amount of fertilizer in the pond is increased, then the amount of algae will also increase

Scientific Reason
Ingredients found in Fertilizer  may have an effect in the  growth of algae.

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A prediction is a statement of what you expect will happen in your experiment

Step 1 Predict the outcome of the experiment using "if and then" Statement
Example:
If the amount of fertilizer in the pond is increase, then the amount of algae will also increase
Step 2 Provide evidence or Scientific reasoning/explanation that supports your prediction
Example:ingredients found in Fertilizer  may have an effect in the  growth of algae.

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1.2 MYP Criteria B Strand I Defining a  Problem Year 1 and 3 sample

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1.2 MYP Criteria B Strand I Defining a  Problem Year 1 and 3 sample

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Grade 6:
Outline a problem or question
* How does the fertilizer affects the growth of algae in the pond?

Give a brief account or summary of what is the significance of your questions
* Knowing the effects of fertilizer to the growth of algae will help control algae bloom that can have negative effects on the environment
Give a brief account or summary of system in society are you trying to develop
* Most farms use fertilizer without knowing the effects in environment. This research will help improve disposal/ irrigation/ control of fertilizer use

Grade 7 and 8:
Describe a problem or question by defining, explain the process, and give example.
* How does the fertilizer used by farmers in their fields affects the growth of algae in the pond nearby?

Give a detailed account, definition, process and example of the significance of your questions
* Knowing the effects of certain chemical fertilizer used by farmers in their fields that drains towards nearby water reservoir will help determine the cause of excessive growth of algae that can have a effect on the other organism that lives in the pond and beyond.

Give a detailed account, definition, process and example of system in society are you trying to develop
* Most farms used fertilizer without knowing the short and long term effects to the environment and the organism that live in it. The result of this research can be used to help improve instructions and guidelines on what type and amount of fertilizer that the farmers can used in order for the environment not contaminate the environment.

An algae bloom may make a water body look like it is teeming with life--and it is, temporarily. Algae produce oxygen during daylight hours. The extra oxygen and plant matter can feed millions of micro-organisms and lead to increased fish populations. However, when the algal bloom dies off--either all at once if the nutrient source stops, or over time if the nutrient source keeps flowing--decomposition of the algae structures depletes the water body of oxygen, resulting in fish kills and other environmental damage. If the algae bloom is toxic, it can sterilize the pond.

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* Ask a question based on your observation, experience, or research that you want to answer

Steps to follow:

Step 1 Ask a question:
* What  makes algae grows?

Step 2 Breakdown your main question by asking more related detailed questions
* How do algae grows?
* How do people measures algae growth?
* Can a fertilizer affects the growth of algae?
* Can I use algae or fertilizer safely in lab?

Step 3 Do research and find the answers to these questions and write down your sources

Step 4 Make a final question from your research
* How does fertilizer affects the growth of algae?

Criteria for a good research questions that you must meet
* Realistic (something that can be tested)
* Have importance (their is a lesson to learn)
* Improve system in our society (other people can benefit from your result)
* Not time consuming (Experiment should last for 5 days)

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Defining a Problem: Crash Course Kids #18.1

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Step 1: Use your senses to observe products (things we use),  process (how we do things, cooking, learning, and etc) or Innovative ideas (things we currently working to improve)

Step 2 Closely examine what you observe and see if you can test, build or improve a product, process, or innovative ideas that can help us develop systems in our society.

Example:
* Traffic during rush hour
* Electric vehicles needs constant charging
* New type of tires are being
* A girl walking in the farm and notice a pond that changes color throughout the year and searched that algae growth is causing the pond to change color.