Primary 4(Theme 1:variety and classification)-Unit 2

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Across
  1. 2. A tiny organism that live in pond water and start with the letter D.
  2. 3. A tiny organism that live in pond water and start with the letter A.
  3. 6. a long cylindrical animal with a backbone that have no legs.
  4. 10. An insects has a pair of these.
  5. 11. A type of mould(fungi) that is used to make the medicine penicillin.
  6. 13. A scientific instrument that allows us to observe things closely.
  7. 15. many of those tiny organism live in this medium.
  8. 17. A special body part that help animals that live in water to get oxygen they need from water.
  9. 18. A tiny organism that live in pond water and start with the letter P.
  10. 19. an animal with a backbone that can fly.
  11. 20. An insect has this to fly.
  12. 22. This is the most common and diverse group of animals without backbone.
Down
  1. 1. A tiny organism that live in pond water and start with the letter H.
  2. 4. Tiny organisms that can be found in the soil, water and air.
  3. 5. An animal with a backbone that have a huge mouth and teeth and they like to bath in rivers.
  4. 6. Animals that live in water are usually covered with this to protect their bodies and also allow them to move easily in water.
  5. 7. This organims are like plants, but they cannot make their own food.
  6. 8. Living things around us that are too small to see using our eyes.
  7. 9. Animals that live in water have this to help them swim.
  8. 10. Animals that spend part of their life in water and part of their life on land.
  9. 12. An animal with backbone that live in stream, lakes, coral reef and oceans.
  10. 14. An insect has 6 of these.
  11. 16. A tiny organism that live in pond water and start with the letter C.
  12. 21. A tiny organism that live in pond water and start with the letter G.