Third graders apply matter ideas to real situations. Multiple-choice items explain a bowl of water that disappears in the sun (evaporation), the shared property of mass and taking up space, an ice sculpture turning into a puddle (melting), and why a bicycle tire feels firm because gas particles push outward.

Fill-in-the-blank questions show that melting and freezing can be reversed, that liquid water takes the shape of its container, that gas particles move in all directions, that a thermometer measures temperature, and that maple syrup is a thick liquid. Strong practice for connecting science to daily life.

Style:
Busy Bee
States of Matter
Grade 3
★ Part A: Multiple Choice
Circle the best answer for each question.
1. You leave a bowl of water outside on a sunny day and it disappears. What happened?
 A) The bowl absorbed the water
 B) The water froze and blew away
 C) The water evaporated into water vapor
 D) The water sank into the bowl
2. Which property do all solids, liquids, and gases share?
 A) They all have a definite shape
 B) They all have mass and take up space
 C) They all flow easily
 D) They all can be seen with your eyes
3. An ice sculpture slowly turns into a puddle at a warm party. Which process is happening?
 A) Evaporation
 B) Condensation
 C) Freezing
 D) Melting
4. Why does a bicycle tire feel firm even though it is filled with air?
 A) The air turns into a solid inside the tire
 B) Gas particles push outward on the walls of the tire
 C) The rubber pulls the air into a solid shape
 D) Air does not take up any space inside the tire
★ Part B: Fill in the Blank
Write the correct answer on each line.
1) When you melt an ice cube and then freeze it again, you can reverse the change.
2) Liquid water has a definite volume but takes the shape of its container.
3) Particles in a gas move in all directions and bounce off each other.
4) A thermometer measures temperature, which affects the state of matter.
5) Maple syrup flows slowly because it is a thick liquid.
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