1. Test review Write this down!!! Study it!!!!

2. Amount of matter in an object. Measured in grams. Mass

3. liquid Substance has a definite volume but no definite shape. Takes the shape of the part of the container it occupies.

4. Matter: All substances that make up the universe. They have mass and volume.

5. Convection current Movement of a gas, liquid, or plastic solid caused by variations in density that result from uneven heating of matter.

6. density Mass of a known volume of a substance.

7. Boiling point Temperature at which liquid turns to a gas

8. Melting point Temperature at which solid turns to liquid

9. Temperature Measurement of how hot an object is

10. miscible Able to mix

11. Volume Amount of space occupied by an object, measured in mL or cubic centimeters

12. Melting point Temperature at which solid turns to liquid.

13. Physical properties All the characteristic properties of a substance except those that determine how it behaves in a chemical reaction.

14. Thermal decomposition A chemical reaction in which a compound is decomposed by heating.

15. expansion Increase in volume caused by heating

16. Characteristic property An attribute that can be used to help identify a substance. It is not affected by the amount of the substance

17. Which units are the best measure of the amount of matter in an object? mL Cubic centimeters Grams Grams per cubic centimeter

18. 3 grams of orange crystals were mixed with 20 mL of water to form a solution. In the solution, the orange substance was the ________________. What was the mass of the orange solution formed?