Revision for Science (P3 topics) - Taken from P3E Blog and updated
Diversity
1. State the characteristics of living things.
2. State 2 differences between plants and animals.
3. Why do living things reproduce?
4. What are microorganisms?
5. What are the animal groups? State their characteristics.
6. Name 2 types of fungi.
7. How do fungi reproduce?
8. How do fungi obtain their food?
9. State 2 non-flowering plants. How do non-flowering plants reproduce?
10. There are 3 parts of an insect's body. Name the 3 parts. Which part can you find the insect's legs and wings?
11. A whale is a fish. Is this statement correct. Explain your answer.
12. A spider is an insect. Is this statement correct. Explain your answer.
13. Draw a mushroom and label its parts. Circle the part where the spores are found.
14. How are bacteria harmful or useful to us? List them.
*Please note that plants cannot move from place to place by themselves while animals can move from place to place by themselves. However, plants can move by themselves. An example is that they move towards sunlight.
Materials
1. What are the properties of materials? State how each property can be tested.
* In answering questions on materials, especially on choosing the right material to make an object, we must know the properties of the material and the use (function) of the object. We must be able to relate the properties of materials to the uses of the objects.
Interactions :Magnets
1. Name 2 metals that magnets can be made from.
*Hint: Remember Ironman and Superman (Man of Steel) :)
2. Complete the sentences.
(i) A magnet can attract _______________ materials.
(ii) Some examples of magnetic materials are ________, ________, __________, ___________.
(iii) A magnet has _______ poles. They are the ______________ and _____________.
(iv) A freely suspended magnet rests in ____________ direction.
(v) Like poles ___________.
(vi) Unlike poles ______________.
3. List three ways for a magnet to lose its magnetic strength.
4. Name the 2 methods to make magnets.
5. In each method mentioned in Q4, how can the magnet be made stronger?
6. How can we tell if an object is a magnet or a magnetic material?
7. Larger magnets are always stronger that smaller magnets. Is this statement true? Explain.
8. Describe 2 ways where we can compare which magnet is stronger.
*Magnets are used in everyday objects like fridge, compass, credit cards and many more.
Please note: Like poles attract when facing each other. Unlike poles attract when facing each other.
Life cycles
1. Why are life cycles important?
2. Why are the eggs of a frog covered with a jelly-like covering?
3. Where are the eggs of a cockroach laid in?
4. List the differences between a cockroach nymph and an adult cockroach.
5. Where are the eggs of a grasshopper found?
6. At which stage, does the young of a butterfly stop eating?
7. How do the mosquito larvae and pupae breathe?
8. Which stages of the mosquito life cycle are spent in water?
9. What type of water are the eggs of the mosquito laid in?
10. Which stage of the grasshopper life cycle is most harmful to the farmers? Why?
11. Which stage of the mosquito life cycle most difficult to kill? Why?
12. Why are the eggs of the butterfly laid on leaves?
13. Name 2 differences between the life cycle of a cockroach and the life cycle of a butterfly.
14. List the differences between the tadpole (young of a frog) and the adult frog.
15. Why do some animals lay so many eggs at one time?
* Please take note that the chick looks like the adult chicken, similar to the grasshopper/ cockroach nymphs which also look like their adults.
** The nymphs of grasshopper and cockroach moults and the larvaes of butterfly, mosquito and beetle moults too.
Do test yourselves on these questions as you go about your revision.
If you do spot any errors, do inform me when I see you on Friday. Have fun revising.
