Grade 4 Science practice sheet
Manitoba Curriculum · from Gradelings · Name: ______________________
Question 1
Which light source gives off light but very little heat?
🟢- the Sun
- a campfire
- a candle
- a glow stick
Show answer
a glow stick
Hint: A glow stick makes light with a chemical change, not by burning.
Question 2
A fire alarm uses a loud, high-pitched sound. Why?
🚨- it is quiet
- it is pretty
- it is easy to notice and warns people of danger
- it makes the fire go out
Show answer
it is easy to notice and warns people of danger
Hint: Sound is a useful warning signal.
Question 3
Fertile soil is soil that…
- is always dry
- is good for growing plants
- has no life in it
Show answer
is good for growing plants
Hint: Fertile soil has nutrients, air and water.
Question 4
Which tool would help you look closely at the grains in a rock?
- a clock
- a ruler only
- a hand lens
Show answer
a hand lens
Hint: A magnifier shows tiny details.
Question 5
Which choice saves energy?
- Ride alone in a big car
- Walk or bike to school
- Leave the car running
Show answer
Walk or bike to school
Hint: Walking uses no fuel.
Question 6
Why is a food web a better picture of nature than one food chain?
🕸️- it is only for plants
- most animals eat more than one kind of food
- it has fewer animals
- it is smaller
Show answer
most animals eat more than one kind of food
Hint: Real communities have many links.
Question 7
Which surface reflected the most light?
Temperature after 10 minutes in the Sun (°C) - black paper
- white paper
- foil
Show answer
foil
Hint: It stayed the coolest.
Question 8
Why do you see lightning before you hear thunder?
⛈️- sound is faster than light
- lightning is quieter
- light travels much faster than sound
- thunder is made first
Show answer
light travels much faster than sound
Hint: Light reaches you almost instantly.
Question 9
What do earthworms do for soil?
- mix it and let in air
- poison it
- make it into rock
Show answer
mix it and let in air
Hint: Worms tunnel and help soil get air and water.
Question 10
Which test checks how easily a mineral is scratched?
- hardness
- weight of the box
- colour only
Show answer
hardness
Hint: Harder minerals scratch softer ones.
Answer key
- 1. a glow stick (Light)
- 2. it is easy to notice and warns people of danger (Sound)
- 3. is good for growing plants (Soil Detectives)
- 4. a hand lens (Rocks & Minerals)
- 5. Walk or bike to school (Energy We Use)
- 6. most animals eat more than one kind of food (Food Chains & Webs)
- 7. foil (Light)
- 8. light travels much faster than sound (Sound)
- 9. mix it and let in air (Soil Detectives)
- 10. hardness (Rocks & Minerals)
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.