1. Science Vocabulary
3 week 9

2. Solids
A substance that has a definite shape and a definite volume.

3. Buoyancy
The capacity to float or rise up in a liquid or gas.

4. Phases
A particular point in the time of a cycle; distinct time period in a sequence of events; a stage in a cycle of change.

5. Gas  
One of the three states of matter. This state of matter has no fixed shape and no fixed volume.

6. Liquid
A state of matter that has no fixed shape but that has a definite volume.

7. Volume
The amount of space that an object occupies.

8. Perpetually
In a way that never ends or changes; constantly.

9. Expand
Become larger in size or volume or quantity.

10. Contract
Decrease in size, number, or range.

11. Physical Properties
DO NOT change the structure of the matter when it is observed or described.

12. Chemical Properties
The types of changes the matter can undergo.

13. Density Is how we measure how much matter is in a given
amount of space.
 Density = Mass ÷ Volume

14. Boiling Point
The temperature at which a substance turns from a liquid to a gas.

15. Melting Point
The temperature at which a substance turns from a solid into a liquid.

16. Solution
A homogenous combination of two or more substances.

17. Freezing Point
The temperature at which a substance turns from a liquid to a solid.

18. Condensing
Cause a gas or vapor to change into a liquid.

19. Solvent
The part of a solution that does the dissolving.

20. Solubility
Means the amount of a substance that can be dissolved in another substance.

21. Mixture
A heterogeneous combination of two or more substances that keep their properties.

22. Solute
The part of a solution that gets dissolved.