A) anything that takes up space B) anything that we can see C) anything that has mass D) anything that has mass and takes up space
- 2. What is a substance made up of two or more chemically combined elements in a fixed ratio?
A) solution B) mixture C) compound D) element
- 3. What is table salt (NaCl) classified as?
A) element B) compound C) mixture D) solution
- 4. What is an example of an element?
A) water (H2O) B) air (N, O, Ar, CO2) C) oxygen (O) D) salt (NaCl)
- 5. Which of these is best classified as a mixture?
A) air (N, O, Ar, CO2) B) salt (NaCl) C) water (H2O) D) propane (C3H8)
- 6. A substance with a definite volume and a definite shape is classified as a -
A) solid B) gas C) plasma D) liquid
- 7. Which phase of matter has no definite volume and occupies all the space available to it?
A) solid B) gas C) liquid
- 8. Which state of matter is electrically charged an exists at extremely high temperatures?
A) plasma B) liquid C) solid D) gas
- 9. Which state of matter has no definite shape but does have a definite volume?
A) liquid B) plasma C) gas D) solid
- 10. What is a physical property of matter?
A) combustibility B) solubility C) reactivity D) acidity
- 11. Density depends on what two measurements of an object?
A) length and width B) mass and weight C) mass and volume D) volume and size
- 12. What is a chemical property of matter?
A) density B) shape C) solubility D) basicity
- 13. As matter changes from a solid, to a liquid, to a gas, what happens to its particles?
A) they speed up B) they slow down C) they decrease in number D) they increase in number
- 14. As matter turns from a gas, to a liquid, to a solid, the energy of the particles -
A) increases B) decreases C) stays the same
- 15. In which phase of matter are the particles most tightly packed?
A) solid B) plasma C) liquid D) gas
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