A Little Bit of Science

General Science

Directions:  Read the following questions carefully, then select the best answer and shade it on your            

                 answer sheets.

1. Adam left a spoon near the beach. After a few days , he noticed that the spoon had

become rusty. He described this as a ………. reaction.

    (a) deposition          (b) physical           (c)  reversible         (d) chemical

2. Which of the following is an example of a physical change?

    (a) burning paper    (b) melting ice       (c) decaying leaf     (d) all of the above

3.  During photosynthesis plants make ……..

     (a ) flowers            (b) little ones          (c)  their own food   (d) leaves

4. Chlorophyll is ……….

     (a) substance which grows on trees.

     (b) the substance which gives leaves their green colour.

     (c) a parasitic plant

     (d) another name for the bark of the plant.

5.  …… is released into the air during photosynthesis.

      (a) carbon dioxide    (b) chlorophyll    (c) oxygen           (d) respiration

6.  …….  is not a source of renewable energy.

      (a) diesel                    (b) solar energy        (c) wind         (d) geothermal energy

7Hydro electricity is generated by the use of ………..

      (a) wind                      (b) running water       (c) coal         (d) petroleum

8.  Terry has difficulty in seeing objects which are far away. Which of these disorders isTerry likely suffering from?

     (a) night blindness        (b) short sightedness    (c) red eyes   (d) long sightedness

9.  The diagram below shows a

      (a) convex lens             (b) concave lens           (c) focus       (d)  rays

10.  In the food chain the green plants are the ……

       (a) herbivores           (b) producers              (c) consumers       (d) carnivores

11. Which is missing in the following food chain?

Cabbage                     caterpillar                                                cat    

(a) goat                        (b)  mango                (c)  tree              (d)  bird

12. Which of these materials will a magnet attract?

      (a)  rubber              (b) glass                   (c)  iron               (d) plastic

13.  Which part of the eye is responsible for near sighted ness or far sightedness.

       (a)  lens                  (b) retina                 (c) optic nerve     (d) eye lash

14. What is matter?

       (a) an electric current                   (b) anything with weight and occupies space

       (c) something hot                         ( c) something with weight but takes no space

15. Which of the following pieces of material will most likely sink when dropped in a river?

       (a) wood                 (b) paper                   (c) plastic          (d) metal