Fish – Activities

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1. Answer these questions using the sheets given by the teacher:

  • What is a swim bladder?
  • How does it work?
  • What groups of fish have a swim bladder?
  • How can swim fish that have not a swim bladder?

2. Write in your dictionary all the new words you have learnt about fish and their translation to Spanish.


Big fish

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Reptiles – Activities

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Lizards, snakes

  1. What does “scaly skin” mean?
  2. What’s the name of the modified teeth that snakes use to inject poison to their preys?
  3. What’s the difference in the shed  between snakes and lizards?


  1. Describe the structure that distinguishes turtles.
  2. Do turtles have teeth?
  3. Do turtles take care of their young?


  1. What adaptations have crocodiles and alligators to sit semi-submerged in water?
  2. How do crocodiles feed?
  3. Do crocodiles take care of their young?


Mammals activities

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How many species of monotremes are there?

Where do they live?

What do they eat?

How do they feed their youngs after they hatch?


How many species of marsupials are there?

Where do they live?

What do they eat?

What do the young (or “joey”) do after they are born?

Name four species of marsupials.

Placental Mammals

How many species of placental mammals are there?

Where do they live?

Name four species of placental mammals.

How can they move?

How are young different from those of marsupials after the birth?