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### 21 Cards in this Set

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 What is matter? Matter is anything that takes up space. What makes up matter? All living and non-living things make up matter. What is mass? Mass is the amount of material that an object has in it. What is volume? Volume is the amount of space that matter takes up. Why does the thicker pretzel have more mass? It has more mass because it is made up of more material. Why does the thin pretzel take up less space? It has less volume so it takes up less space. How is matter described? Matter is described by its physical properties. What is a property? A property is something that can be observed and tells you what the matter is like. What are the physical properties of mass? (4) 1. color 2. shape 3. size 4. mass What are the three states of matter? 1. solid 2. liquid 3. gas Describe a solid. A solid has a shape and volume of its own What are examples of solids? -book -pencil -table -chairs Describe a liquid. A liquid has volume (takes up space) but has no shape of its own. A liquid takes the shape of the container it is in. What are examples of a liquid? -milk -water Describe a gas. Gases do not have volume or a shape of its own. What is an additional property of matter? An additional property of matter is whether or not it can float in liquid or gas. What is a mixture? A mixture is made when two or more substances are joined together. Each of the substances can be easily removed or separated. What are examples of mixtures? -salad -trail mix What is a solution? A solution is a mixture in which one substance spreads evenly throughout another substance. Substances in a solution can be easily seperated. What is an example of a solution? Salt water Why is salt water an example of a solution? If you place salt water in a warm place, the water will evaporate and you are left with the salt.