Coral & sea plants
6 free practice questions with explanations
PassNova has 6 free Kids Sea Life practice questions on Coral & sea plants, each with a clear explanation. Practise them in the browser with instant feedback — 100% free, no sign-up, on any device. Updated for 2026.
Coral & sea plants: example questions & answers
6 worked examples with answers and explanations below. Practise them in the browser with instant feedback on every answer.
What is a coral reef mostly made of?
- APlastic from the beach
- BBlocks of ice
- CLots of tiny living animals called coral polyps✓
- DColourful painted rocks
Answer: A coral reef is built by millions of tiny animals called polyps that live together.
What is the long, leafy sea plant that washes up on beaches called?
- AIvy
- BGrass
- CMoss from trees
- DSeaweed✓
Answer: Seaweed is a plant-like living thing that grows in the sea and sometimes washes ashore.
Why are coral reefs important for sea life?
- AThey give many fish and creatures a home✓
- BThey keep the sea warm at night
- CThey make the sea taste sweet
- DThey light up the sky
Answer: Coral reefs are like busy underwater cities where lots of sea animals live and hide.
What do sea plants like seaweed need to help them grow?
- ATorchlight only
- BSunlight✓
- CLoud music
- DSweet fizzy drinks
Answer: Like plants on land, seaweed uses sunlight to help it grow.
Corals come in many bright what?
- ASounds
- BSmells
- CFlavours
- DColours✓
Answer: Coral reefs can be beautiful colours like pink, orange, purple and blue.
Which little sea creature likes to hide among the swaying sea plants and coral?
- AA seahorse✓
- BA sheep
- CA polar bear
- DA parrot
Answer: A seahorse curls its tail around sea plants to hold on and hide from danger.