Unseen Passage for Class 6 with Questions

Reading comprehension lesson 21: Science and environment passages · Set 28 · 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.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.
   
   When do these birds come to India? (a) Every summer (b) During the monsoon (c) Every spring (d) Every winter
2. 2.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 is earthworm waste called? (a) sprays (b) castings (c) tunnels (d) manure
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.
   
   What is the main idea of the passage? (a) Why animals breathe (b) Why leaves fall (c) How plants make food (d) How roots grow long
4. 4.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 does “repel” mean in the passage? (a) Break (b) Pull closer (c) Spin round (d) Push away
5. 5.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.
   
   What do leaves take in from the air? (a) oxygen (b) water (c) sugar (d) carbon dioxide
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.
   
   In “It is home to the Royal Bengal tiger”, what does “It” refer to? (a) A crab (b) The coast (c) The mud (d) The Sundarbans
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.
   
   What can a weak monsoon mean? (a) More rice (b) A big flood (c) A cold winter (d) A poor harvest
8. 8.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 are earthworms called? (a) The garden pests (b) The soil’s enemies (c) The farmer’s friends (d) The night hunters
9. 9.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.
   
   What does “eagerly” mean in the passage? (a) Angrily (b) Sadly (c) Keenly (d) Lazily
10. 10.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.
    
    What is the green substance in leaves called? (a) sugar (b) carbon dioxide (c) oxygen (d) chlorophyll
11. 11.In many Indian cities, people face water shortages in summer. Rainwater harvesting is one simple answer. Rain falling on rooftops is collected through pipes. It is then stored in tanks or sent into the ground through pits. Water sent into the ground raises the level of water in wells. A single roof can collect thousands of litres in one monsoon. Some states have made rainwater harvesting compulsory for new buildings. Saving rain today means more water tomorrow.
    
    Where is the collected water stored? (a) In clouds (b) In bottles (c) On roofs (d) In tanks
12. 12.A vaccine helps the body fight a disease before the disease attacks. It contains a weak or harmless form of a germ. The body’s defence system learns to recognise it. It then makes special fighters called antibodies. Later, if the real germ enters, the body knows how to beat it quickly. Children in India get vaccines against polio, measles and other diseases. Most vaccines are given as injections, but the polio vaccine can be given as drops. Vaccines have saved millions of lives.
    
    What does a vaccine contain? (a) A weak form of a germ (b) Strong medicine (c) Sugar and salt (d) Only vitamins

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