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Science Exam 8th
| Question | Answer |
|---|---|
| Freedom of Movement | the way molecules in a substance move around relative to each other |
| Kinetic Energy | the energy that an object has because it is moving |
| molecular attraction | a pull between two molecules that is always the same for a substance |
| molecule | the smallest particle of a substance that still has the properties of that substance |
| phase | a noticeably different form or state of the same substance |
| refute | to provide evidence that goes against the claim. |
| scale | the relative size of things |
| temperature | a measure of how hot or cold something is; the higher the temperature is, the more energy it has |
| atoms | the tiny pieces that all matter—all the stuff in the world—is made of |
| chemical formuioli | letters and numbers showing the types and number of atoms that repeat to make up a substance |
| claim | a proposed answer to a question about the natural world |
| convert | to change from one type to another |
| energy | the ability to make things move or change |
| evidence | information about the natural world that is used to support or go against (refute) a claim |
| model | an object, diagram, or computer program that helps us understand how a system, or part of a system, works |
| potential energy | the energy that is stored in an object or system |
| reasoning | the process of making clear how your evidence supports your claim |
| transfer | to move from one object to another or one place to another |
| system | a set of interacting parts forming a complex whole |
| fertilizer | a substance that is added to soil to help plants grow |
| substance | something that is made of all the same atoms or groups of atoms |
| property | something that can be observed about a substance, such as color, smell, or boiling point |
| scientific argument | a claim supported by evidence |
| Short answer #1 : Explain how food we eat is like a battery in devices we use. | |
| Short answer #2 : Describe the 3 phases of matter found on earth with regard to how the molecules move, freedom of movement and molecular attraction. | |
| Explain what happens for a phase of matter to change state. | |
| What is the criteria you were asked to meet for the Baby Warmer that you designed and why each was important. |
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