Tides & waves
6 free practice questions with explanations
PassNova has 6 free Kids Oceans & Tides practice questions on Tides & waves, each with a clear explanation. Practise them in the browser with instant feedback — 100% free, no sign-up, on any device. Updated for 2026.
Tides & waves: example questions & answers
6 worked examples with answers and explanations below. Practise them in the browser with instant feedback on every answer.
What makes the waves at the seaside?
- AThe sun shining
- BFish pushing the water
- CThe wind blowing across the water✓
- DPeople swimming
Answer: Wind blowing over the sea pushes the water up into waves.
When the sea slowly comes up the beach it is called what?
- AHigh tide✓
- BLow tide
- CA splash
- DA rainbow
Answer: At high tide the sea covers more of the beach than at low tide.
What in the sky helps to pull the sea's tides in and out?
- AThe Moon✓
- BA kite
- CA cloud
- DAn aeroplane
Answer: The Moon's pull moves the ocean water to make the tides go in and out.
When the sea goes out and leaves lots of sand showing, it is called what?
- ANight tide
- BDeep tide
- CLow tide✓
- DHigh tide
Answer: At low tide the water pulls back and you can see more of the beach and rock pools.
What is the white, foamy part on the top of a breaking wave called?
- ACream
- BFog
- CSnow
- DSurf✓
Answer: When a wave tips over near the shore, the frothy white water is called surf.
How many times does the tide usually come in and go out at the seaside each day?
- AOnce a year
- BAbout twice a day✓
- CNever
- DAbout one hundred times
Answer: Most seasides have two high tides and two low tides every day.