Grade 3 Science practice sheet
Nunavut Curriculum · from Gradelings · Name: ______________________
Question 1
In a fair test about how fast a car rolls, you keep the ramp, the car and the floor the same. What do you change?
🏎️- nothing
- one thing, like the slope
- everything
- the ramp, car and floor
one thing, like the slope
Hint: One changed thing lets you tell what caused the result.
Question 2
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 3
Which would be a good way to compare the speed of two toy cars?
- Colour them
- Weigh the track
- Time how long each takes to go the same distance
Time how long each takes to go the same distance
Hint: A fair test keeps the distance the same.
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 has a life cycle that starts as a seed?
- A bean plant
- A butterfly
- A frog
A bean plant
Hint: Plants begin as seeds.
Question 7
Which feature do all birds have?
🐦- 🪶feathers
- 🐻fur
- 🐟gills
🪶 feathers
Hint: Every bird has feathers, even birds that can't fly, like penguins.
Question 8
A theory or model in science is…
- an idea that explains many observations
- a single guess
- a joke
an idea that explains many observations
Hint: Models help explain.
Question 9
A solution may affect people, animals and…
- nothing
- only your shoes
- the environment
the environment
Hint: Solutions have implications.
Question 10
A geoscientist studies…
- Earth, rocks and landforms
- insect wings
- only music
Earth, rocks and landforms
Hint: Geo means Earth.
Answer key
- 1. one thing, like the slope (Science Skills & Safety)
- 2. non-contact force (Pushes, Pulls & Forces)
- 3. Time how long each takes to go the same distance (Speed & Motion)
- 4. so people and vehicles can cross (Structures & Their Jobs)
- 5. bend or break the roof (Strong & Stable)
- 6. A bean plant (Basic Needs & Life Cycles)
- 7. 🪶 feathers (Grouping Living Things)
- 8. an idea that explains many observations (How Scientists Find Out)
- 9. the environment (Solutions, Technology & Taking Action)
- 10. Earth, rocks and landforms (Science All Around Me)
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.