Grade 2 · Science · Unit 4 of 6
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.
New Brunswick Curriculum skill descriptor: Play and Playfulness: Exploration and Problem Solving · gathering evidence about solids and liquids
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
🧈 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
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
🧊 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
🧱 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
🍞 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
🧱 hard and keeps its shape
Hint: Solids don't change shape unless you do something to them.