Term
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Definition
| Anything that takes up space and has characteristics that can be observed and measured |
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Term
| Is crumpling a piece of pare a physical change or a chemical change? |
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Definition
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Term
| Is growing hair a physical change or a chemical change? |
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Definition
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Term
| Is metal turning to rust a physical change or a chemical change? |
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Definition
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Term
| Is digesting food a chemical change or a physical change? |
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Definition
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Term
| What are the 4 states of matter? |
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Definition
| solid, liquid, gas, plasma |
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Term
| What did Archimedes discover when he put objects in water? |
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Definition
| The amount of water pushed out (displaced) is equal to the volume of that object |
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Term
| What is a physical change? |
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Definition
| any change to a substance that makes it look different |
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Term
| What is a chemical change? |
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Definition
| any change that makes a substance a new one |
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Term
| What fabric did Wallace Carothers invent? |
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Definition
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Term
| What investigation did Joseph Priestly use when he discovered oxygen? |
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Definition
| He heated a mercury compound |
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Term
| What do scientists call the temperature at which solids change into a liquid? |
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Definition
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Term
| What do scientists call the temperature at which liquids change into a gas? |
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Definition
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Term
| What do scientists call the temperature at which liquids change into a solid? |
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Definition
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Term
| Which state of matter are molecules spaced very far apart? |
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Definition
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Term
| In which state of matter are the molecules very close? |
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Definition
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Term
| What is needed for matter to change from one state to another? |
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Definition
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