Grade 2 · Science · Unit 6 of 12
Solids & Liquids
Melting, freezing and steam
What your child practises
Sorting solids and liquids, describing melting, freezing and boiling, and changes that can or can't be undone.
Ontario Curriculum expectation: C2.1, C2.3, C2.4 · solids and liquids, and the changes of state of water
Sample questions
A taste of this unit. In the app, questions change every time and get easier or harder to match your child.
Question 1
What happens when you warm up butter?
- 🧈It gets softer and melts
- 💨It becomes a gas right away
- 🪨It turns into stone
Show answer
🧈 It gets softer and melts
Hint: Heat can change solids into liquids.
Question 2
What do we call the process of a liquid becoming a solid when it gets cold?
- melting
- boiling
- freezing
Show answer
freezing
Hint: Freezing happens when a liquid cools down until it is solid.
Question 3
What happens to water in the freezer?
❄️- 🧊It freezes into ice
- 💨It disappears
- 🧃It turns into juice
Show answer
🧊 It freezes into ice
Hint: Cold makes water freeze. The liquid becomes a solid.
Question 4
Is it a solid or a liquid? Tap an item, then tap its basket.
Sort into: 🧱 solid · 💧 liquid
- 🍯honey
- 💧water
- 🍎apple
- 🧊ice cube
- 🧃juice
- 🪨rock
Show answer
🧱 solid: apple, ice cube, rock · 💧 liquid: honey, water, juice
Hint: A solid keeps its shape. A liquid flows and takes the shape of its container.
Question 5
Which change CANNOT be undone?
- 🧊ice melting
- 🍞toast being made from bread
- 💧water freezing
Show answer
🍞 toast being made from bread
Hint: Toasting makes a new material. You can't turn toast back into bread.
Question 6
Which words describe a solid?
- 💧flows and pours
- 💨floats away in the air
- 🧱hard and keeps its shape
Show answer
🧱 hard and keeps its shape
Hint: Solids don't change shape unless you do something to them.