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