Physical Science Unit 1 Review

3. Amount of force exerted on a given area
4. The scientific _____ is followed by scientists to make scientific discoveries
5. Change of a solid directly to a gas
8. Liquid's resistance to flow
9. Combination of two or more substances that are not chemically combined
11. The curve on the surface of a liquid
14. Possible explanation or answer to a question
16. Category of elements that are good conductors of thermal energy and electric current
18. The building blocks that make up everything around us
19. State in which matter has a definite shape and volume
20. Representation of an object or system used to describe it or make predictions
21. Use of the senses to gather information
24. Type of solid in which particles have orderly, three-dimensional arrangements
26. Pure substance composed of two or more elements that are chemically combined
28. ______ properties describe a substance based on its ability to change into a new substance with different properties
29. Standard International Unit of measure for temperature

1. The force of attraction between objects due to their masses
2. Pure substance that cannot be separated into simpler substances by physical means
4. An object's mass can only be changed by changing the amount of ____ in it.
6. The volume of liquids is expressed in _____.
7. State of matter in which a substance can change shape, but cannot readily change volume
10. Standard International base unit for length
12. Elements are classified into groups based on their _____ properties
13. A type of physical science
15. ______ properties can be observed without changing the identity of the matter
17. The amount of matter that something is made of
22. Amount of space that an object occupies
23. One of the two divisions of physical science
24. Mixture in which the particles are dispersed throughout a liquid or gas and are not heavy enough to settle out
25. Substance that is dissolved into another substance
27. The amount of matter in a given space or volume