This Grade 3 science worksheet explores friction across real surfaces. Students complete nine fill-in questions comparing sandpaper, glass, ice, and rubber, noting how friction slows motion or gives grip. The matching section pairs surfaces with their friction level and practical result. Scenarios include tire treads, ice rinks, shoe soles, and greased slides. Grade 3 vocabulary includes friction, surface, rough, smooth, grip, and heat, aligned to NGSS 3-PS2 force and motion expectations.
Style:
Forces and Motion
Part A: Fill in the Blank
Write the missing word or number on each line.
1. A force that slows motion between two surfaces is called friction.
2. A rough surface like sandpaper has more friction than glass.
3. Ice feels slippery because it has very little friction.
4. Tire treads are the grooves that help a car grip the road.
5. A box slides easily on a smooth floor because there is less friction.
6. Rubbing your hands together fast makes them feel warm.
7. A rubber shoe sole gives more grip than a plastic one.
8. To slide faster on a slide, we choose a very smooth surface.
9. On icy roads, cars need chains to increase friction so they do not slip.
Part B: Matching
Match each item on the left to the correct answer on the right.
1. Match each item to its correct answer.
Sandpaper on wood
→ A lot of friction, hard to slide
A lot of friction, hard to slide
A smooth ice rink
→ Very little friction, slides easily
Very little friction, slides easily
Rubber tires on a dry road
→ Enough friction to grip safely
Enough friction to grip safely
A greased metal slide
→ Low friction from a slippery coating
Low friction from a slippery coating
Forces and Motion
★ Part A: Fill in the Blank
Write the missing word or number on each line.
1) A force that slows motion between two surfaces is called friction.
2) A rough surface like sandpaper has more friction than glass.
3) Ice feels slippery because it has very little friction.
4) Tire treads are the grooves that help a car grip the road.
5) A box slides easily on a smooth floor because there is less friction.
6) Rubbing your hands together fast makes them feel warm.
7) A rubber shoe sole gives more grip than a plastic one.
8) To slide faster on a slide, we choose a very smooth surface.
9) On icy roads, cars need chains to increase friction so they do not slip.
★ Part B: Matching
Match each item on the left to the correct answer on the right.
1) Match each item to its correct answer.
Sandpaper on wood
→ A lot of friction, hard to slide
A lot of friction, hard to slide
A smooth ice rink
→ Very little friction, slides easily
Very little friction, slides easily
Rubber tires on a dry road
→ Enough friction to grip safely
Enough friction to grip safely
A greased metal slide
→ Low friction from a slippery coating
Low friction from a slippery coating
Ready to Practice?
Complete each section carefully.
10 Questions
10-15 minutes
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