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Fish micro-lesson

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Learning time​

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Fish are found across the globe in rivers, seas, lakes, and oceans. There are over 24,000 species of fish with new ones always being discovered. Although fish can be found in saltwater such as seas and oceans and also freshwater such as rivers and lakes, they're usually not found in water that is extremely salty. There are some things that all fish have in common. They are all vertebrates and have a spine or backbone. They're cold-blooded, meaning their body temperature changes depending on the temperature around them. They generally breathe through gills and have fins. Most fish are also usually covered in scales. Fish generally swim sideways using their fins for balancing, steering, and stopping. Some fish can swim extremely fast. For example, tuna can reach speeds of up to 48 kilometers per hour. Some other types of fish can change their color and pattern to help them blend into their surroundings and protect themselves from predators. Sharks, seahorses, and eels are all types of fish but do not have the common fish body shape. The largest fish found on earth are certain shark species, the largest one being the whale shark that on average can grow up to 12 meters in length and can live up to 70 years old. One of the smallest fish on the planet is the dwarf pygmy goby which measures approximately 9 millimeters in length.

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Answer time

Kids earn more screen time by answering fun educational questions.

Here are some example of questions about this video that kids may be asked in the 1Question app to earn screen time.

  • What do fish use their fins for?

    1) All of these
    2) Balancing
    3) Steering
    4) Stopping
  • What do fish use to breathe?

    1) Gills
    2) Fins
    3) Nose
    4) Scales
  • How do most fish reproduce?

    1) Lay eggs
    2) Give birth to live young
    3) Produce seeds
    4) Collect seaweed
  • Which of these is not a fish

    1) Giant squid
    2) Moray eel
    3) Zebra seahorse
    4) Bull shark
  • A group of fish is called a what?

    1) Shoal or school
    2) Pack
    3) Pod
    4) Pride
  • What are fish eggs known as?

    1) Caviar and Roe
    2) Pods
    3) Jellies
    4) Spawn
  • Which of these do fish not have?

    1) Hair
    2) Scales
    3) Fins
    4) Gills
  • What is the largest species of fish on earth?

    1) The whale shark
    2) The lemon shark
    3) The great white shark
    4) The hammerhead shark
  • Do fish swim in water that is very salty?

    1) No
    2) Yes
  • Do fish have lungs?

    1) No
    2) Yes
  • Fish are cold blooded?

    1) Yes
    2) No
  • Fish were the first animals to evolve with a backbone?

    1) Yes
    2) No
  • Some fish survive in the ocean at great depths where there is little light?

    1) Yes
    2) No
  • Some fish can live in very muddy water?

    1) Yes
    2) No
  • Some fish are poisonous?

    1) Yes
    2) No

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Meet your educator

Our micro-courses are developed and delivered by qualified educators from around the world.

Rebecca Evans

Rebecca Evans

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