1. Which statement about the particle theory of matter is TRUE? A. the particles in a liquid have more kinetic energy than the particles in a gas. B. when a solid melts its particles no longer exist C. a solid stays in one place because its particles are at rest. D. the particles that make up matter are too small to see without a microscope. 2. What happens when ice melts? A. Water molecules change to hydrogen and oxygen atoms. B.Water molecules change to water atoms. C. Irregularly arranged molecules change to regularly arranged molecules. D. Regularly arranged molecules change to irregularly arranged molecules. 3. Two or more atoms combined in a specific arrangement is called? A. Molecule B. solid C. liquid D. ions 4. The force of attraction is greatest between the particles of a A. gas B. mixture C. pure substance D. solid 5. It has an indefinite shape but fixed volume. A. solid B. liquid C. gas D. plasma 6.Which of the following is NOT an example of matter? A. kerosene B. smoke C. energy D. vapor 7. Which is TRUE about gas molecules? A. There are large spaces between the molecules of gases. B. The force of attraction is strong between the molecules of gases. C. There is no movement in the molecules of gases D. Gas is not an example of matter. 8. What is the smallest particle of an element that has all the properties of the element? A. molecule B. particle C. atom D. ion 9. In which state do particles vibrate in fixed position? A. solid B. liquid C. gas D. cannot be determined 10. The state of matter wherein the molecules move past each other easily but they are pretty close together. A. solid B. liquid C. gas D. vapour 11. The force of attraction is greatest between the particles of a A. gas B. liquid C. pure substance D. solid 12. It has definite shape and fixed volume A. solid b. liquid C. gas D. ion 13. The amount of matter present in an object is called? A. volume B. mass C. energy D. space 14. Who gave the name “atomos” to a tiny indivisible particle of matter? A. Dalton B. Democritus C. Avogadro D. Rutherford
