Question

part a: multiple choice, choose the letter of the correct answer. encircle it. 1. which tool is used to measure liquid volume? a) beaker b) thermometer c) balance d) test tube 2. which apparatus is used to heat substances? a) bunsen burner b) funnel c) graduated cylinder d) tongs 3. what safety equipment should you use to protect your eyes? a) gloves b) goggles c) lab coat d) apron 4. ice melting is an example of a: a) chemical change b) physical change c) both d) neither 5. which state of matter has a definite volume but no definite shape? a) solid b) liquid

Explanation:

1. A beaker can be used to measure liquid volume approximately. A thermometer measures temperature, a balance measures mass, and a test - tube is for holding substances.
2. A Bunsen burner is used to heat substances. A funnel is for pouring liquids, a graduated cylinder for measuring volume precisely, and tongs for handling hot objects.
3. Goggles protect eyes in a lab. Gloves protect hands, a lab coat and apron protect clothing.
4. Ice melting is a physical change as only the state of water changes from solid to liquid without a change in chemical composition.
5. Liquids have a definite volume but take the shape of their container, while solids have a definite shape and volume.

Answer:

1. a) Beaker
2. a) Bunsen burner
3. b) Goggles
4. b) Physical change
5. b) Liquid