Solids & Liquids — Answer Key
Part A: Fill in the Blank
Write the missing word or number on each line.
1. Ice is the solid form of water.
When water gets very cold, it turns into solid ice that keeps its shape.
2. When ice gets warm, it starts to melt.
Heat changes solid ice into liquid water, and this change is called melting.
3. When water gets very cold, it will freeze.
Cold air pulls heat away from water and makes it turn into solid ice.
4. Water is a liquid that flows and pours.
Liquid water takes the shape of its cup and can be poured from one container to another.
5. A melted ice cube becomes a puddle of water.
Melting changes ice into liquid water, which flows and makes a puddle.
6. Ice keeps its shape until it melts.
Ice is a solid, so it holds its shape as long as it stays cold.
7. Steam rising from a pot is very hot.
Steam forms when water is heated a lot, and it carries heat into the air.
8. To freeze juice into a pop, put it in the freezer.
The freezer is cold enough to turn liquid juice into a solid frozen treat.
9. The same water can be solid, liquid, or steam.
Water changes between solid ice, liquid water, and steamy gas when it is heated or cooled.
Part B: Matching
Match each item on the left to the correct answer on the right.
1. Match each item to its correct answer.
ice left in sun
→ melts
melts
juice in freezer
→ freezes
freezes
boiling water
→ steams
steams
warm water in cup
→ stays liquid
stays liquid
Heat and cold change water between solid, liquid, and steam, and a warm cup just stays liquid.