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| What is another name for the dependent variable? |
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| On which axis does the dependent variable go? |
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| On which axis does the independent variable go? |
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| What is another name for the independent variable? |
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| Which variable is the result in an experiment? |
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| Which variable is the cause in an experiment? |
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| A scientific theory is... |
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| ... An explanation about the natural world that has significant supporting evidence that was acquired through the scientific method |
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| ...A statement that describes a natural occurrence in the universe from repeat experimental observations. |
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| ... a proposed testable explanation. |
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| ... stated as a question that is testable. |
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| ... something from an experiment that may have impacted the results in a way that caused problems with the results. |
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| List the steps to the Scientific Method (as learned in class). |
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Definition
1. observation in nature
2. statement of problem/question
3. hypothesis
4. plan (procedure and materials)
5. collect / analyze data
6. draw conclusions
7. report results and conclusions |
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| If the results of an experiment do not support the hypothesis, a scientist should... |
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Definition
| go back in the scientific method and design a new hypothesis to test |
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| How do you calculate the average of a set of numbers? |
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| get the total of all the numbers added together then divide this total by how many numbers were added |
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| What is meant by the term, units? |
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| This is whatever an amount was measured in...such as meters, grams, or liters |
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| What is the format for a properly stated hypothesis? |
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Definition
| If (independent variable) then (dependent variable). |
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| Why do scientists only change one variable at a time? |
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Definition
| This way the variable that caused the result can be clearly identified. If you change more than one, you don't know what caused the result. |
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| How can you change a description of "big" to be more scientific? |
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| Use something like a ruler to measure how big. |
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| What is the dependent variable in this hypothesis? If a ball is let go on a hill, then it will roll down the hill. |
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| What is the independent variable in this hypothesis? If a ball is let go on a hill, then it will roll down the hill. |
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| Letting go of a ball on a hill |
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| Give an example of a scientific theory |
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| Theory of evolution, Theory of relativity, Big Bang Theory |
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| Give an example of a scientific law |
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| The law of gravity, Newtons 3 laws of motion, law of thermodynamics |
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| What is the purpose of a controlled variable? (Not to be confused with control group) |
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Definition
| To keep the rest of the testing / experimental situation the same so we know which variable caused the change in the experiment |
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| What is the purpose of a control group? (not to be confused with a controlled variable) |
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| This is the normal situation which is used to COMPARE with the tested situation |
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