Asset Practice - Science

Which of the following is/are method(s) of preserving food?

1. freezing of vegetables

2. making pickle with mangoes

3. making sauces with tomatoes

4. washing and cutting vegetables

• only 2

• only 2 and 3

• only 1, 2, and 3

• all of them

Ashok took two identical potted plants and kept them in the garden. He watered one plant regularly, but did not water the second plant at all. He noted all the changes he observed in both the plants for 15 days.

Ashok conducted this activity to understand ......

• if plants need sunlight to grow

• if plants need water to grow

• if the second plant needed water to grow

• if plants need air to grow

Tags

NGSS.MS-LS2-4

NGSS.MS-LS1-5

NGSS.MS-LS2-1

Which of the following 'life processes' is seen in animals but not in plants?

• movement

• growth

• respiration

• nourishment

Some sharks have the ability to detect blood even in very tiny quantities from more than a kilometre away.

They use one of the following senses for this. Which of the following could it be?

• hearing

• sight

• smell

• touch

Tags

NGSS.MS-LS1-8

Shyam learnt at school that leaves have pores called 'stomata' on them. On his way back home, he collected a variety of leaves. But he was unable to see the pores.

Which of these instruments will help Shyam see the pores?

• a telescope

• a magnifying glass

• a ruler

• a camera

The concept that matches the definition 'the amount of matter in a substance' is.....

• weight

• mass

• kilogram

• gravitational force

Tags

NGSS.MS-PS1-5

Mohan went to a picnic spot. There was a little lake surrounded by trees. He found a lot of people boating around in diesel boats. After a joy ride, when he sat down to relax on the bank of the lake, he observed a lot of dead fish. The MOST LIKELY reason for the dead fish is....

• The fish were old and therefore died

• Fish cannot live in places having many visitors

• Fish cannot live in polluted waters

• There was not enough water in the lake

Tags

NGSS.MS-LS2-4

NGSS.MS-ESS3-4

Bhoomi looked up at the night sky for 30 minutes. She saw something moving slowly in the sky. At the end of 30 minutes, she could still see this object, but its position had changed. Which of the following could it be?

1. a shooting star

2. a satellite

3. the Moon

4. a cloud

• only 1

• only 2 and 4

• only 2, 3 or 4

• all - 1, 2, 3, 4

Tags

NGSS.MS-ESS1-2

Which of these is a chemical reaction?

• Breaking a piece of chalk

• Dissolving sugar in water

• Dicing an onion

• Rusting of iron

Tags

NGSS.MS-PS1-5

NGSS.MS-PS1-2