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science test
Physical & chemical properties/changes
Question | Answer |
---|---|
What is a physical property? | Something you can observe or measure. |
What is a chemical property? | The ability for a substance to undergo change and form a new substance. |
Example of physical properties. | Color, length, volume. |
Example of chemical properties. | Flammability & reaction with oxygen, light, water, or another substance. |
What is a solid? | A state of matter where atoms are packed together and can barely move with a defined shape and volume. |
What is a liquid? | A state of matter where atoms are slightly spaced from one another and can slide past each other with no defined shape but a defined volume. |
What is a gas? | A state of matter where atoms are spaced out, and can move freely with no restrictions. |
What is an atom? | The smallest unit of an element that has the elements properties. |
What is matter? | A material that has mass and takes up space. |
What is the law of conservation of matter? | The law of conservation of matter is a principle of science stating that matter cant be created or destroyed is a close system. |