Grade 4 Science practice sheet
Saskatchewan Curriculum · from Gradelings · Name: ______________________
Question 1
A drought dries up a pond. What happens to the animals that live there?
🏜️- they get more food
- they grow gills
- nothing changes
- many have to move or may not survive
Show answer
many have to move or may not survive
Hint: Water is a necessity for pond life.
Question 2
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 3
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 4
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 5
Which kind of rock is it? Tap a rock, then tap its basket.
Sort into: 🌋 igneous · 🏜️ sedimentary · 🔥 metamorphic
- 🏛️marble
- 🌋basalt
- 📚shale
- 🪨granite (Canadian Shield)
- 🧱slate
- 🏜️sandstone
Show answer
🌋 igneous: basalt, granite (Canadian Shield) · 🏜️ sedimentary: shale, sandstone · 🔥 metamorphic: marble, slate
Hint: Igneous rock forms from cooled melted rock. Sedimentary rock forms in layers. Metamorphic rock is changed by heat and pressure.
Question 6
What can a fossil of a sea animal found in Saskatchewan tell us?
🌊- it is a modern lake
- the animal flew here
- it was always a desert
- the land was once under a sea
Show answer
the land was once under a sea
Hint: A shallow sea once covered the prairies.
Question 7
Does it help a habitat or harm it? Tap an item, then tap its basket.
Sort into: 💚 helps habitats · ⚠️ harms habitats
- 🌉building a wildlife crossing over a highway
- 🪺putting up bird nest boxes
- 🛢️dumping chemicals into a river
- 🌳planting native trees
- 🪓clearing a forest and leaving it bare
- 🅿️draining a wetland for a parking lot
Show answer
💚 helps habitats: building a wildlife crossing over a highway, putting up bird nest boxes, planting native trees · ⚠️ harms habitats: dumping chemicals into a river, clearing a forest and leaving it bare, draining a wetland for a parking lot
Hint: Restoring wetlands and putting up nest boxes help. Pollution and clearing habitat harm.
Question 8
Put the food chain in order. Start with the producer.
- 🦢heron
- 🌾grass
- 🐸frog
- 🦗grasshopper
Show answer
grass → grasshopper → frog → heron
Hint: A food chain starts with a producer. Each arrow shows energy moving to the animal that eats it.
Question 9
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 10
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.
Answer key
- 1. many have to move or may not survive (Habitats & Communities)
- 2. most animals eat more than one kind of food (Food Chains & Webs)
- 3. a glow stick (Light)
- 4. it is easy to notice and warns people of danger (Sound)
- 5. 🌋 igneous: basalt, granite (Canadian Shield) · 🏜️ sedimentary: shale, sandstone · 🔥 metamorphic: marble, slate (Rocks, Minerals & Mining)
- 6. the land was once under a sea (Erosion & Fossils)
- 7. 💚 helps habitats: building a wildlife crossing over a highway, putting up bird nest boxes, planting native trees · ⚠️ harms habitats: dumping chemicals into a river, clearing a forest and leaving it bare, draining a wetland for a parking lot (Habitats & Communities)
- 8. grass → grasshopper → frog → heron (Food Chains & Webs)
- 9. foil (Light)
- 10. light travels much faster than sound (Sound)
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.