Unit 0 Crossword Review

2. The phase change from gas to liquid that occurs when a gas loses energy and its particles slow down and come together.
3. The phase change from solid to liquid that occurs when a substance absorbs energy and its particles move faster.
4. The ability to do work or cause change. Energy can cause matter to move or change state.
6. The phase change from solid directly to gas without passing through the liquid state. This occurs when a solid absorbs enough energy.
7. The amount of mass in a given volume of a substance. Calculated using the formula: Density = Mass ÷ Volume.
10. CHANGE A change in the size, shape, or state of matter without forming a new substance.
12. CHANGE A change that produces one or more new substances with different properties.
13. The phase change from liquid to solid that occurs when a substance loses energy and its particles slow down and lock into place.
14. PROPERTY A characteristic of matter that can be observed or measured without changing the substance into something new.

1. The phase change from liquid to gas that occurs at the surface of a liquid when particles gain enough energy to escape into the air.
2. OF MASS LAW Matter cannot be created or destroyed in a chemical reaction. The total mass of the reactants equals the total mass of the products.
5. A state of matter with a definite volume but no definite shape. Particles in a liquid are close together but can slide past each other.
8. A state of matter with a definite shape and definite volume. Particles in a solid are tightly packed and vibrate in place.
9. Anything that has mass and takes up space. Matter is made up of tiny particles called atoms and molecules.
11. A state of matter with no definite shape and no definite volume. Particles in a gas are far apart and move freely in all directions.
12. PROPERTY A characteristic of matter that can only be observed when the substance changes into a different substance.