Science 'N' us-3 final - School Books Publishers India

1.Science 'n' Us - 3THINGS AROUND USExerciseA. Answer the following questions :1. What are natural things? Give two examples.Ans. Some things which are found in nature are called natural things.Examples - mountain, river.2. Are man-made things living or non-living?Ans. All man-made things are non-living things.3. How are living things different from non-living things?Ans.Living things(i) Living things have life inthem.(ii) Living things move fromone place to another.(iii) Living things require foodand water.(iv) All living things breathe.Non-living things(i) Non-living things are lifeless.(ii) Non-living things cannotmove on their own.(iii) Non-living things do not needfood and water.(iv) Non-living things do notbreathe.4. Give one example that shows movement in plants.Ans. When we touch the 'Touch-me-not' plant, it closes its leaves. Thisshows movement in plants.5. How are plants generally born?Ans. Plants produce seeds which form new plants. Most of the plants bornfrom seeds.B. Choose the correct word from side box and fill in the blanks :1. Things made by man are called man-made things. reproduction2. Things which are not made by man are called naturalthings.man-made3. Living things grow in size. sunflower4. Sunflower tends to bend towards sun. natural5. Reproduction means producing young ones. livingC. Write :1. Three man-made things :(a) fan (b) bicycle (c) telephone2. Three natural things :(a) mountain (b) river (c) animals3. Three living things :(a) human (b) bird (c) plant4. Three non-living things :(a) bus (b) car (c) televisionHorizon Press42Science 'n' Us - 1 to 5