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DDES Science
Matter Vocabulary
Question | Answer |
---|---|
What is matter? | It makes up everything that has mass and volume. |
What is gas? | It is a state of matter that can fill its container and has particles that move very fast. |
What is a solid? | It is a state of matter that maintains its own shape because the particles are pressed tightly together. |
What is plasma? | It is a state of matter where the electrons have been stripped away from the nucleus because of extremely high temperatures. |
What is a liquid? | It is a state of matter that takes the shape of its container and has particles that move with moderate speeds. |
What is melting? | It is the process of a solid changing into a liquid. |
What is freezing? | It is the process of a liquid changing into a solid. |
What is boiling? | It is the process of a liquid changing into a gas. |
What is condensation? | It is the process of a gas changing into a liquid. |
What is sublimation? | It is the process of a solid changing into a gas. |
What is an element? | It is a substance that cannot be broken down into another substance by chemical or physical means. |
What is a compound? | It is a substance made of two or more elements that are chemically bonded together. |
What is an atom? | It is the smallest part of an element. |
What is a molecule? | It is a combination of two or more atoms that are chemically bonded together. |
What is a chemical bond? | It is a force that holds two atoms together. |
What is a mixture? | It is two or more substances that are mixed together but are not chemically bonded. |
What is a physical change? | It is a change in a substance that does not change its identity and does not create a new substance. |
What is a chemical change? | It is a change in a substance where chemical bonds are broken or formed and a new substance is created. |