Grade 3 Science practice sheet
New Brunswick Curriculum · from Gradelings · Name: ______________________
Question 1
Plants take in nutrients from the…
🪴- wind
- clouds
- soil
- moonlight
soil
Hint: Nutrients are like vitamins for plants. They are in the soil.
Question 2
Put the life cycle of a bean plant in order. Tap the first stage first.
- 🌱seed sprouts
- 🌿seedling with leaves
- 🌼plant with flowers
- 🫘pods with new seeds
- 🌰seed
seed → seed sprouts → seedling with leaves → plant with flowers → pods with new seeds
Hint: A seed sprouts into a seedling, grows leaves, flowers, and makes new seeds.
Question 3
Two magnets push each other apart without touching. This shows a…
🧲- friction
- contact force
- non-contact force
- twisting force
non-contact force
Hint: The magnets act from a distance.
Question 4
A bridge has a flat surface on top. Why?
🌉- to look like a mountain
- so it can float
- to hold water
- so people and vehicles can cross
so people and vehicles can cross
Hint: The bridge's job is to carry traffic across a gap.
Question 5
Heavy snow piles on a flat roof. What could the force of the snow do?
❄️- make it hotter
- make it lighter
- bend or break the roof
- make it taller
bend or break the roof
Hint: A large load can change the shape of a structure.
Question 6
Which part of a plant holds it up and carries water to the leaves?
🌿- the stem
- the seed
- the roots
- the flower
the stem
Hint: The stem is like a straw with a frame around it. It holds the plant up and carries water.
Question 7
Chlorophyll gives leaves their green colour. What else does it do?
🍃- pulls water up from the roots
- helps the leaf capture sunlight
- makes the leaf smell sweet
- stops the leaf from falling
helps the leaf capture sunlight
Hint: Chlorophyll catches sunlight so the plant can make food.
Question 8
Which surface has the most friction?
🧱- a wet bar of soap
- sandpaper
- ice
- polished glass
sandpaper
Hint: Rough surfaces grip and slow things down. Slippery surfaces have little friction.
Question 9
Who built it? Tap an item, then tap its basket.
Sort into: 🐾 built by animals · 👷 built by people
- 🌉bridge
- 🏠house
- 🕸️spider web
- 🦫beaver dam
- ⛺tent
- 🐝wasp nest
🐾 built by animals: spider web, beaver dam, wasp nest · 👷 built by people: bridge, house, tent
Hint: Animals build nests, dams and webs. People build bridges, towers and houses.
Question 10
Is it a strut (pushed on) or a tie (pulled on)? Tap an item, then tap its basket.
Sort into: ⬇️ strut (pushed) · ⬆️ tie (pulled)
- ⛓️chain on a swing
- 🌉bridge cable
- 🪢rope on a tent
- 🪑table leg
- 🧱brick pillar
- 🏡post under a deck
⬇️ strut (pushed): table leg, brick pillar, post under a deck · ⬆️ tie (pulled): chain on a swing, bridge cable, rope on a tent
Hint: A strut is squeezed and holds something up. A tie is stretched, like a rope or cable that holds something from above.
Answer key
- 1. soil (Plant Parts & Needs)
- 2. seed → seed sprouts → seedling with leaves → plant with flowers → pods with new seeds (How Plants Grow & Change)
- 3. non-contact force (Pushes, Pulls & Forces)
- 4. so people and vehicles can cross (Structures & Their Jobs)
- 5. bend or break the roof (Strong & Stable)
- 6. the stem (Plant Parts & Needs)
- 7. helps the leaf capture sunlight (How Plants Grow & Change)
- 8. sandpaper (Pushes, Pulls & Forces)
- 9. 🐾 built by animals: spider web, beaver dam, wasp nest · 👷 built by people: bridge, house, tent (Structures & Their Jobs)
- 10. ⬇️ strut (pushed): table leg, brick pillar, post under a deck · ⬆️ tie (pulled): chain on a swing, bridge cable, rope on a tent (Strong & Stable)
Want more than 10 questions?
In Gradelings the questions change every time and adjust to your child, with hints and kind feedback. See all science units.