6. G. MATCH THE FOLLOWING COLUMNS Column A 1. Lamina 2. Petals Column B (a) outermost whort of a flower (b) transfer of pollen grains from anther to stigma (c) flat green part of leaf (d) part of pistil that traps pollen grains (e) brightly coloured part of the flower 3. Stigma 4. Sepals 5. Pollination
Answers
Answer:
Date: 19/07/2021 Sub: Science Duration: 1 hour
A. Choose the correct option: [0.5 x 4= 2]
1. The chlorophyll traps the solar energy and converts it into____________ energy.
a. mechanical b. chemical c. magnetic d. electrical
2. When a few drops of iodine solution are added to a boiled potato, it turns __________.
a. green b. yellow c. blue d. blue-black
3. Which one of the following is not a natural fibre?
a. Cotton b. rayon c. silk d. wool
4. ____________ of sheep means to look after the sheep by providing them food, shelter and health care.
a. rearing b. rolling c. breeding d. spinning
B. Identify the odd ones. Give reason for your answer. [0.5 x 4= 2]
1. water carbon dioxide oxygen sunlight
2. Indian pipe cuscuta coral root green plants
3. horse camel sheep goat
4. combing scouring reeling shearing
C. Fill in the blanks: [0.5 x 4= 2]
1. In ___________________ technique, the sheep is injected with special hormone so that fleece can be
easily peeled off without using shears.
2. ___________ is done to obtain animals with desired characteristics.
3. ____________ bacteria fix atmospheric nitrogen.
4. _______________ maintains the balance between oxygen and carbon dioxide in the atmosphere.
D. True / False [0.5 x 4= 2]
1. Water and minerals are absorbed by the roots from the soil through osmosis.
2. Raw silk is twisted to produce thrown silk.
3. We keep a healthy potted plant in a dark room for some days to destarch the leaves.
4. Lohi is the breed of sheep.
E. Short answer type questions: [1x4=4]
1. Name the scientist who coined the term photosynthesis.
2. Give two characteristics of wool.
3. Why is mistletoe called partial parasite?