SECTION A
FILL IN THE BLANKS Marks
1. The clinical thermometer has a ______________to prevent the backflow of mercury.
2. Organisms which derive nutrition from dead and decaying organisms are called _______________.
3. Dark coloured umbrellas are not preferred during _______________ season
4. The ________ is the ultimate source of energy for all living organisms.
5. The degree of hotness or coldness of an object is called as its _______________
6. The food prepared by leaves is stored as ____________ in the plants.
MULTIPLE CHOICE QUESTIONS
7. Plants require nitrogen for synthesis of _______________
a) fats b) proteins c) glucose d) food
Answer: ___
8. A burning candle emits radiation in the form of
a) heat b) light c) both a) and b) d) none of these
Answer: ___
9. The components that are necessary for our body’s growth are called
a) Vitamins b) Fats c) Nutrients d) Minerals
Answer: ___
10. A marble tile would feel cold as compared to a wooden tile on a winter morning, because the marble tile
a) is a better conductor of heat than the wooden tile.
b) is polished while wooden tile is not polished.
c) absorbs more heat than wooden tile.
d) is a poor conductor of heat than the wooden tile.
Answer: ___
11. The equation given below represents photosynthesis.
Chlorophyll
X + Water → Glucose + Y
Sunlight
Which of the following is represented by X and Y in the given equation?
a) X - Carbon dioxide, Y- Oxygen
b) X - Oxygen, Y - Carbon
c) X - Carbon dioxide, Y – Hydrogen
d) X - Oxygen, Y - Carbon dioxide
Answer: ___
12. An example of the insulator of heat is
a) Iron b) Aluminum c) Rubber d) Silver
Answer: ___
SECTION B
ANSWER IN ONE WORD OR ONE SENTENCE
1. Cuscuta is an example of which kind of plant?
2. Why convection is not possible in the solids?
3. Observe the following figure and identify it and label the part A.
4. What is the normal human body temperature in degree Fahrenheit?
ANSWER THE FOLLOWING IN TWO SENTENCES
5. Sheetal used laboratory thermometer to measure the body temperature. Is she right in her choice? If so why? Suggest a better idea if any.
6. What is meant by symbiotic relationship? Give an example.
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