Unseen Passage for Class 6 with Questions

Reading comprehension lesson 21: Science and environment passages · Set 85 · 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.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 is the yellow dust on flowers called? (a) nectar (b) honey (c) wax (d) pollen
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.
   
   How often does the Moon go around the Earth? (a) Once a week (b) Once a day (c) About once a month (d) Once a year
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.
   
   True or false: On a new moon night, we see the whole bright face of the Moon. (a) False (b) True
4. 4.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) Punjab (b) Kerala (c) Rajasthan (d) Odisha
5. 5.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) tunnels (c) manure (d) castings
6. 6.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.
   
   Which gas is given out during photosynthesis? (a) Oxygen (b) Carbon dioxide (c) Water vapour (d) Smoke
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.
   
   When does the monsoon usually reach Kerala? (a) Mid March (b) Early January (c) Early June (d) Late October
8. 8.Every living thing needs food for energy. Plants make their own food using sunlight. A grasshopper eats grass. A frog eats the grasshopper. A snake eats the frog, and an eagle eats the snake. This link of who eats whom is called a food chain. Every food chain begins with a green plant. If one link disappears, the whole chain is affected.
   
   What does every food chain begin with? (a) A frog (b) A snake (c) An eagle (d) A green plant
9. 9.Sound is made when something vibrates, or moves quickly back and forth. When you pluck a sitar string, it vibrates and makes a sound. The vibrations travel through the air to our ears. Sound can also travel through water and solids. In fact, it moves faster through solids than through air. Sound cannot travel through empty space, where there is no air. That is why space is completely silent. Loud sounds for a long time can harm our hearing.
   
   What does “vibrates” mean in the passage? (a) Stays still (b) Moves back and forth (c) Becomes hot (d) Breaks apart
10. 10.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 causes day and night? (a) The Sun switching off (b) The Moon moving (c) The Earth spinning (d) Clouds covering Sun
11. 11.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) Schools close (b) It is cool (c) Crops need its rain (d) It brings snow
12. 12.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) Sadly (b) Keenly (c) Lazily (d) Angrily

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