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