3rd grade Science practice sheet
Oregon State Standards · from Gradelings · Name: ______________________
Question 1
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 2
Which would be a good way to compare the speed of two toy cars?
- Color 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 3
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 4
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 5
Which is an inherited trait?
- A scar from a fall
- Eye color
- Knowing how to read
- A haircut
Eye color
Hint: You are born with it.
Question 6
Which animal survives best in a hot desert?
- A penguin
- A walrus
- A polar bear
- A camel
A camel
Hint: It can go long without water.
Question 7
Sandbags are used during…
- fog
- heat waves
- floods
- earthquakes only
floods
Hint: They block water.
Question 8
In rock layers, older fossils are usually…
- in the middle only
- in the air
- on top
- lower down
lower down
Hint: Layers stack over time.
Question 9
Which season brings the most snow to Mount Hood?
- Winter
- Summer
- Late summer
- Early fall
Winter
Hint: Cold months.
Question 10
A magnet's pull gets weaker when it is…
- painted
- closer
- colder
- farther away
farther away
Hint: Distance matters.
Answer key
- 1. non-contact force (Pushes, Pulls & Forces)
- 2. Time how long each takes to go the same distance (Speed & Motion)
- 3. seed → seed sprouts → seedling with leaves → plant with flowers → pods with new seeds (How Plants Grow & Change)
- 4. A bean plant (Basic Needs & Life Cycles)
- 5. Eye color (Traits & Variation)
- 6. A camel (Surviving in a Habitat)
- 7. floods (Weather Hazards & Solutions)
- 8. lower down (Fossils & Long Ago)
- 9. Winter (Oregon Weather & Climate)
- 10. farther away (Magnet Inventions)
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.