Science Olympiad Miscellaneous Worksheet-5

Science Olympiad Miscellaneous Worksheet-5

1. When coal is burnt, _______ energy is converted into light and heat.

(a) Chemical     (b) Electric        (c) Atomic

2. What is the name given to the green pigment in plants?

(a) Chlorophyll                             (b) Stomata

(c) Tendrils                                    (d) Starch

3. From the bark of which tree is quinine obtained?

(a) Cinchona     (b) Redwood     (c) Eucalyptus  (d) Banyan

4. What is quinine used for?

(a) Curing Malaria                       (b) Curing Aids

(c) Curing Typhoid                      (d) Removing pimples

5. Which organism is helpful in making the soil fertile?

(a) Earthworm                              (b) Roundworm

(c) Beetle                                        (d) Ringworm

6. When water is boiled, it is converted into steam. This is an example of conversion of _______ energy to mechanical energy.

(a) Heat             (b) Chemical     (c) Light             (d) Atomic

7. Which is not a herbivorous animal?

(a) Lion              (b) Cow              (c) Monkey        (d) Deer

8. Movement of organisms away from the sunlight is known as _______.

(a) Negative phototaxis               (b) Positive phototaxis

(c) Photoperiodism                      (d) Autotrophism

9. Which is a by-product of photosynthesis?

(a) Oxygen                                     (b) Carbon dioxide

(c) Nitrogen                                   (d) ATP

10. _______ is made from bamboo plants.

(a) Paper           (b) Silk               (c) Jute               (d) Rubber

11. Which is not a 'renewable' resource of energy?

(a) Petroleum   (b) Sun               (c) Water           (d) Wind

12. Plants manufacture their food by the process of:

(a) Photosynthesis                        (b) Symbiosis

(c) Photokinesis                            (d) Chemosynthesis

13. Light energy is converted into chemical energy by the process of:

(a) Photosynthesis                        (b) Photokinesis

(c) Photoperiodism                      (d) Symbiosis

14. The response of plants to light is known as:

(a) Phototropism                          (b) Chemotropism

(c) Thigmotropism                      (d) Hydrotropism

15. Autotrophic component of the ecosystem are:

(a) Producers                                (b) Consumers

(c) Decomposers                          (d) All of these

16. Nitrogen-fixing bacterium:

(a) Rhizobium                               (b) Lactobacillus

(c) Clostridium                             (d) Salmonella

17. Interaction between organisms of different species so as to get benefit from each other is known as:

(a) Symbiosis                                (b) Saprophytism

(c) Predation                                 (d) Etiolation

18. Which is not true regarding parasites?

(a) They are always beneficial to the other organism.

(b) They live on or inside the other organism.

(c) They derive their food from the organism on which they live.

(d) Leech is a parasite.

19. Which is not a 'biotic part' of the ecosystem?

(a) Water           (b) Plants           (c) Insects          (d) Bacteria

20. Which is not a 'nonrenewable' source of energy?

(a) Wind            (b) Coal              (c) Petrol           (d) Natural gas

Answer Key:

(1)-(a); (2)-(a); (3)-(a); (4)-(a); (5)-(a); (6)-(a); (7)-(a); (8)-(a); (9)-(a); (10)-(a); (11)-(a); (12)-(a); (13)-(a); (14)-(a); (15)-(a); (16)-(a); (17)-(a); (18)-(a); (19)-(a); (20)-(a)