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Primary 4 Unit 6 Reading Comprehension

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  • Dolphins often move together and use sounds to share messages. What do dolphins do when they are together?
    They talk to each other.
    They hide under rocks.
    They build nests.
    They sleep alone.
  • Octopuses copy colors and textures around them. How do octopuses hide?
    They use bubbles.
    They swim away.
    They blend in.
    They dig holes.
  • Sharks must hunt smaller creatures in order to stay alive. How do sharks find food?
    By hunting animals.
    By filtering water.
    By eating sand.
    By growing plants.
  • Turtles bury their eggs in warm sand. Where do turtles lay eggs?
    In the sea.
    On the beach.
    In seaweed.
    Under rocks.
  • Using less plastic keeps trash out of the sea. How can we protect the ocean?
    Use less plastic.
    Drive more boats.
    Drink more soda.
    Fish every day.
  • The part of the ocean where no sunlight reaches is extremely cold and black. What is true about the deepest part of the ocean?
    It has many people.
    It is full of sunshine.
    It is dark and cold.
    It is warm and bright.
  • The ocean gives food, water, and clean air. How does the ocean help us?
    It gives resources.
    It makes clothes.
    It builds roads.
    It grows trees.
  • Sea sponges clean by soaking up bits from water. How do sponges help the sea?
    They chase crabs.
    They eat fish.
    They make ink.
    They clean it.
  • If one fish is gone, others may lose food. Why is losing one fish bad?
    It helps sharks grow.
    It makes the water cold.
    It breaks the food chain.
    It brings more jellyfish.
  • Tiny sea animals feed bigger ones. Why are small creatures important?
    They blow bubbles.
    They swim fast.
    They are food.
    They clean rocks.
  • A squid uses ink to confuse attackers. Why does a squid squirt ink?
    To color the sea.
    To escape danger.
    To scare its friends.
    To swim faster.
  • Catching too many fish can make it hard for them to come back. What happens if we catch too many fish?
    They might disappear.
    They grow faster.
    They float to shore.
    They get cleaner.
  • Light disappears in deeper water. What happens in deep sea?
    It gets hotter.
    It gets louder.
    It gets shallower.
    It gets darker.
  • A blue whale travels thousands of kilometers searching for food in deep waters. Why does a blue whale swim such long distances?
    To play with other whales.
    To escape from ships.
    To look for warm water.
    To find something to eat.
  • Sea sponges stay in one spot and trap tiny food pieces that float past. How do sea sponges eat?
    By swimming after crabs.
    By hunting fish.
    By catching food in water.
    By eating seaweed.
  • Oil on the ocean poisons sea life. What does oil do in the sea?
    It cools turtles.
    It feeds fish.
    It cleans water.
    It harms animals.
  • Toxic waste dumped into the sea can make it hard for marine life to survive. Why is toxic waste dangerous to the ocean?
    It makes the ocean warmer.
    It gives fish superpowers.
    It helps turtles swim faster.
    It can harm sea animals.
  • Each ocean zone has its own animals. Why do animals live in certain zones?
    They like swimming.
    Each zone fits them.
    They get bored.
    They follow dolphins.
  • Caring for the ocean helps sea life survive. Why protect the ocean?
    To find treasure.
    To sink boats.
    To save animals.
    To make waves.
  • Some fish glow to keep enemies away. Why do some fish glow?
    To scare others.
    To catch bugs.
    To make friends.
    To warm up.
  • Whale songs travel across the sea. What’s special about whale songs?
    They go far.
    They scare sharks.
    They shake boats.
    They echo in caves.
  • Dolphins leap while playing or talking. Why do dolphins jump?
    To play or speak.
    To sleep.
    To hunt birds.
    To dry off.
  • Plastic bags in the water can look like jellyfish to hungry turtles. Why might a turtle eat plastic by mistake?
    It needs to build a nest.
    It thinks it's food.
    It wants to play.
    It likes to chew it.
  • Light disappears in deeper water. What happens in deep sea?
    It gets louder.
    It gets darker.
    It gets shallower.
    It gets hotter.
  • Only the ocean's top layer gets light from the sun. Which zone gets sunlight?
    It is always frozen.
    It is the quietest part.
    It never moves.
    It gets sunlight.