1. Chemistry Vocabulary

2. matter
anything that has mass and takes up space

3. physical properties
the characteristics of a substance that can be observed or measured without changing the substance

4. solid
the state of matter that has a definite shape and definite volume

5. liquid
the state of matter that has a definite volume but no definite shape (liquids take the shape of their container)

6. gas
the state of matter that has no definite shape or volume

7. mass
the amount of matter in an object (measured using a balance)

8. weight
the measure of the pull of gravity on an object (measured using a scale)

9. volume
the amount of space an object takes up (measured using a graduated cylinder, beaker or flask)

10. density
the concentration of matter in an object (a golf ball is more dense than a ping-pong ball)

11. evaporation
the process by which a liquid changes to a gas

12. condensation
the process by which a gas changes into a liquid

13. freezing point
the temperature at which a substance changes from a liquid to a solid

14. melting point
the temperature at which a substance changes from a solid to a liquid

15. boiling point
the temperature at which a substance changes from a liquid to a gas

16. solubility
the ability of one substance to be dissolved in another substance

17. reactivity
the ability of a substance to go through a chemical change

18. combustibility
the chemical property of being able to burn

19. mixture
a combination of two or more different kinds of matter where each kind of matter keeps its own physical properties

20. solution
a type of mixture where one substance dissolves in another and the particles of the two substances are evenly mixed and not easily separated