Unseen Passage for Class 6 with Questions

Reading comprehension lesson 21: Science and environment passages · Set 92 · 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 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
2. 2.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 reflects sunlight (c) It is on fire (d) It is made of ice
3. 3.Green plants make their own food. This process is called photosynthesis. Leaves take in carbon dioxide from the air through tiny holes. Roots take up water from the soil. A green substance in the leaves, called chlorophyll, traps sunlight. Using the energy of sunlight, the leaf turns water and carbon dioxide into sugar. Oxygen is given out into the air. Animals and people breathe in this oxygen.
   
   Where do the roots take up water from? (a) From the air (b) From the leaves (c) From the soil (d) From sunlight
4. 4.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 can kill earthworms? (a) Dead leaves (b) Chemical sprays (c) Rain water (d) Natural manure
5. 5.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.
   
   Why do the birds fly back in spring? (a) To eat fish (b) To find snow (c) To rest (d) To breed
6. 6.Plastic is cheap, light and strong. But most plastic does not rot away like leaves or fruit peels. A plastic bag may stay in the soil for hundreds of years. Plastic thrown on the road often blocks drains during the monsoon. Cows and other animals sometimes swallow plastic with food scraps. In the sea, turtles can mistake floating bags for jellyfish. We can help by carrying cloth bags and saying no to straws. Sorting dry and wet waste at home also helps.
   
   How long may a plastic bag stay in the soil? (a) One month (b) Ten minutes (c) A few days (d) Hundreds of years
7. 7.Plastic is cheap, light and strong. But most plastic does not rot away like leaves or fruit peels. A plastic bag may stay in the soil for hundreds of years. Plastic thrown on the road often blocks drains during the monsoon. Cows and other animals sometimes swallow plastic with food scraps. In the sea, turtles can mistake floating bags for jellyfish. We can help by carrying cloth bags and saying no to straws. Sorting dry and wet waste at home also helps.
   
   What can plastic on roads block during the monsoon? (a) rivers (b) clouds (c) trains (d) drains
8. 8.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.
   
   What does pollination help plants make? (a) Roots and stems (b) Leaves and thorns (c) Fruits and seeds (d) Bark and wood
9. 9.Plastic is cheap, light and strong. But most plastic does not rot away like leaves or fruit peels. A plastic bag may stay in the soil for hundreds of years. Plastic thrown on the road often blocks drains during the monsoon. Cows and other animals sometimes swallow plastic with food scraps. In the sea, turtles can mistake floating bags for jellyfish. We can help by carrying cloth bags and saying no to straws. Sorting dry and wet waste at home also helps.
   
   What can turtles mistake floating bags for? (a) fish eggs (b) seaweed (c) rocks (d) jellyfish
10. 10.A magnet attracts things made of iron, nickel or cobalt. Every magnet has two ends called poles: a north pole and a south pole. If you bring two north poles together, they push each other away. A north pole and a south pole pull towards each other. In short, like poles repel and unlike poles attract. A magnet hung freely always points north and south. Sailors once used this idea to make the compass. Magnets also work inside fans, speakers and fridge doors.
    
    What happens when two north poles are brought together? (a) They stick (b) They pull together (c) They melt (d) They push away
11. 11.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.
    
    In which state is Chilika Lake? (a) Kerala (b) Odisha (c) Punjab (d) Rajasthan
12. 12.A magnet attracts things made of iron, nickel or cobalt. Every magnet has two ends called poles: a north pole and a south pole. If you bring two north poles together, they push each other away. A north pole and a south pole pull towards each other. In short, like poles repel and unlike poles attract. A magnet hung freely always points north and south. Sailors once used this idea to make the compass. Magnets also work inside fans, speakers and fridge doors.
    
    What are the two ends of a magnet called? (a) tips (b) poles (c) edges (d) sides

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