Unseen Passage for Class 6 with Questions

Reading comprehension lesson 21: Science and environment passages · Set 13 · 12 questions

Reading tip (Cause and effect): Find the topic of the passage in the first sentence. Look for cause-and-effect words: because, so, as a result. Work out new science words from the sentence that explains them.

1. 1.The Earth spins like a top on an imaginary line called its axis. One full spin takes about twenty-four hours. As the Earth spins, one half faces the Sun and has day. The other half faces away and has night. The Earth also moves around the Sun. One trip around the Sun takes about 365 days, which is one year. The tilt of the Earth’s axis gives us seasons. So spinning gives us day and night, while the tilt and the yearly trip give us seasons.
   
   What gives us seasons, along with the yearly trip? (a) The clouds (b) The ocean (c) The Moon (d) The tilt of the axis
2. 2.Every winter, thousands of birds fly to India from colder lands. These travellers are called migratory birds. Many of them come from Siberia and Central Asia. They escape the freezing cold and find food in our lakes and wetlands. Bharatpur in Rajasthan and Chilika Lake in Odisha are famous places to see them. Flamingos, cranes and ducks are among the visitors. In spring, the birds fly back to breed. Protecting wetlands keeps their winter homes safe.
   
   What does the passage call these travelling birds? (a) Water birds (b) Wild birds (c) Song birds (d) Migratory birds
3. 3.The Moon is Earth’s only natural satellite. It goes around the Earth once in about a month. The Moon does not have its own light. It shines because it reflects light from the Sun. As it moves, we see different amounts of its lit side. These changing shapes are called phases. On a full moon night, we see the whole bright face. On a new moon night, we can hardly see it at all.
   
   In “It goes around the Earth”, what does “It” refer to? (a) the Earth (b) the Moon (c) the Sun (d) a star
4. 4.The Sun gives us a huge amount of energy every day. Solar panels can turn sunlight into electricity. They are made of special cells that work when light falls on them. Many homes in India now have solar panels on their roofs. Some villages use solar lamps after dark. Solar energy does not make smoke, so it keeps the air clean. Unlike coal, it will never run out. However, panels make less power on cloudy days.
   
   True or false: Solar energy will run out one day. (a) False (b) True
5. 5.Bees visit flowers to collect sweet nectar. While they feed, yellow dust called pollen sticks to their hairy bodies. When a bee flies to the next flower, some pollen rubs off. This carrying of pollen is called pollination. Pollination helps plants make fruits and seeds. Mangoes, apples and many vegetables depend on it. Without bees, farmers would harvest far less food. So bees are tiny helpers of every farm.
   
   Why do bees visit flowers? (a) To sleep (b) To find water (c) To collect nectar (d) To lay eggs
6. 6.Mangroves are trees that grow in salty water along the coast. Their roots stick out of the mud like knobbly fingers. These roots help the trees breathe in wet, airless soil. Mangrove forests protect the coast from strong waves and storms. They also give shelter to fish, crabs and birds. The Sundarbans, shared by India and Bangladesh, is the largest mangrove forest in the world. It is home to the Royal Bengal tiger. Cutting mangroves leaves the coast open to damage.
   
   Which big cat lives in the Sundarbans? (a) Royal Bengal tiger (b) Cheetah (c) Snow leopard (d) Asiatic lion
7. 7.The monsoon is a seasonal wind that brings rain to India. In summer, the land heats up faster than the sea. Moist winds then blow from the sea towards the land. The south-west monsoon usually reaches Kerala in early June. Over the next few weeks, it spreads across most of the country. Farmers wait eagerly for it because many crops need its rain. Rice, for example, grows in fields full of water. A weak monsoon can mean a poor harvest.
   
   Why do farmers wait eagerly for the monsoon? (a) Crops need its rain (b) It brings snow (c) Schools close (d) It is cool
8. 8.The Sun gives us a huge amount of energy every day. Solar panels can turn sunlight into electricity. They are made of special cells that work when light falls on them. Many homes in India now have solar panels on their roofs. Some villages use solar lamps after dark. Solar energy does not make smoke, so it keeps the air clean. Unlike coal, it will never run out. However, panels make less power on cloudy days.
   
   Why does solar energy keep the air clean? (a) It uses coal (b) It makes no smoke (c) It runs out fast (d) It is very cheap
9. 9.Lightning is a giant spark of electricity in the sky. It happens when electric charges build up inside storm clouds. A flash of lightning heats the air around it very quickly. The hot air expands with a loud bang, which we hear as thunder. Light travels much faster than sound. That is why we see the flash before we hear the thunder. During a thunderstorm, stay indoors and away from tall trees. Standing under a tree is not safe, as lightning often strikes tall objects.
   
   What is lightning? (a) A gust of wind (b) A burst of rain (c) A spark of electricity (d) A falling star
10. 10.The Sun gives us a huge amount of energy every day. Solar panels can turn sunlight into electricity. They are made of special cells that work when light falls on them. Many homes in India now have solar panels on their roofs. Some villages use solar lamps after dark. Solar energy does not make smoke, so it keeps the air clean. Unlike coal, it will never run out. However, panels make less power on cloudy days.
    
    Where do many Indian homes have solar panels? (a) In their gardens (b) In the kitchen (c) Under the floor (d) On their roofs
11. 11.The Moon is Earth’s only natural satellite. It goes around the Earth once in about a month. The Moon does not have its own light. It shines because it reflects light from the Sun. As it moves, we see different amounts of its lit side. These changing shapes are called phases. On a full moon night, we see the whole bright face. On a new moon night, we can hardly see it at all.
    
    Why does the Moon shine? (a) It has its own light (b) It is made of ice (c) It reflects sunlight (d) It is on fire
12. 12.Earthworms are called the farmer’s friends. They dig tunnels as they move through the soil. These tunnels let air and water reach plant roots. Earthworms eat dead leaves and bits of rotting plants. Their waste, called castings, makes the soil rich. A field with many earthworms is usually healthy. Chemical sprays can kill these helpful creatures. So many farmers now use natural manure instead.
    
    What do earthworms eat? (a) Grain seeds (b) Fresh fruit (c) Dead leaves (d) Live insects

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