Ocean Animals
Meet familiar sea animals and discover how they live, hide, and help each other.
Preview
Questions with solutions-
1. Chọn đáp án đúng.
Which sea animal has a body shaped like a star?
- A jellyfish
- A starfish
- A sea urchin
Show solution
- A starfish
A starfish usually has five arms, but some have more.
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2. Chọn đáp án đúng.
Which sea animal has eight arms?
- An octopus
- A starfish
- A crab
Show solution
- An octopus
An octopus uses its arms to hold food and explore.
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3. Chọn đáp án đúng.
Which animal has claws and usually walks sideways?
- A sea turtle
- A shrimp
- A crab
Show solution
- A crab
A crab's legs make moving sideways easier than moving forward.
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4. Chọn đáp án đúng.
Which sea animal has a wide, flat body with fins that look like wings?
- An eel
- A ray
- A seahorse
Show solution
- A ray
A ray moves its wide fins to swim through the water.
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5. Chọn đáp án đúng.
Which animal must come to the surface to breathe air?
- A shark
- A tuna
- A dolphin
Think about which animal breathes like people do.
Show solution
- A dolphin
Dolphins have lungs, like people, rather than gills like fish.
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6. Chọn đáp án đúng.
Where do sea turtles lay their eggs?
- In the sand on a beach
- On rocks deep underwater
- On sea plants underwater
Show solution
- In the sand on a beach
After baby sea turtles come out of their eggs, they move across the sand toward the water.
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7. Chọn đáp án đúng.
How do penguins use their wings?
- To fly through the air
- To swim through the water
- To hold fish while they eat
Show solution
- To swim through the water
Penguins cannot fly in the air, but their wings help them move underwater.
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8. Chọn đáp án đúng.
Which body part does a jellyfish not have?
- A mouth
- A stomach
- A brain
Show solution
- A brain
A jellyfish can feel changes around it and move without a brain.
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9. Chọn đáp án đúng.
Which seahorse parent carries the babies in a special pocket until they are born?
- The father
- The mother
- Neither parent
Show solution
- The father
The mother puts her eggs into a pocket on the father's body.
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10. Điền vào chỗ trống.
A squid makes a dark liquid called ___ to hide from danger.
- oil
- ink
- blood
Show solution
A squid makes a dark liquid called ink to hide from danger.
The dark cloud makes it harder for another animal to follow the squid.
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11. Chọn đáp án đúng.
Blue whales are the largest animals on Earth. What do they mainly eat?
- Large sharks
- Sea turtles
- Tiny animals called krill
A very large animal does not always need large food.
Show solution
- Tiny animals called krill
Blue whales take in water, keep the krill, and push the water back out.
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12. Chọn đáp án đúng.
What does a sea otter's thick fur mainly help it do?
- Stay warm in cold water
- Swim faster through the water
- See clearly underwater
Think about what a thick coat does for you.
Show solution
- Stay warm in cold water
Air held in the fur helps keep heat close to the otter's body.
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13. Chọn đáp án đúng.
A flatfish is the same color as the sand it rests on. How does this help it?
- It can see farther away.
- Other animals have trouble seeing it.
- It can find food in total darkness.
Imagine looking for the fish from above.
Show solution
- Other animals have trouble seeing it.
Hiding this way can help a fish stay safe from animals that want to eat it.
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14. Chọn đáp án đúng.
An oyster takes tiny pieces of food out of the water. What can this do to the water?
- Make it warmer
- Make it saltier
- Make it cleaner
Think about what happens when small pieces are removed from water.
Show solution
- Make it cleaner
Oysters can help clean the water around them as they feed.
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15. Chọn đáp án đúng.
A cleaner fish eats tiny animals off a larger fish's skin. Why does the larger fish let it come close?
- It removes unwanted animals from its skin.
- It brings food for the larger fish.
- It helps the larger fish build a home.
Think about how this meal helps both fish.
Show solution
- It removes unwanted animals from its skin.
The cleaner fish gets food, and the larger fish gets cleaner skin.