Free Printable VII-SCIENCE(ANNUAL REVISION 2022)

1.

Question 1

Sometimes when we do heavy exercise, anaerobic respiration takes place in our muscle cells. What is produced during this process?

a)

(a) alcohol and lactic acid

b)

(b) alcohol and CO₂

c)

(c) lactic acid and CO₂

d)

(d) lactic acid only

2.

Question 2

They are pipe-like, consisting of a group of specialised cells. They transport substances and form a two-way traffic in plants. Which of the following terms qualify for the features mentioned above?

a)

(a) Xylem tissue

b)

(b) Vascular tissue

c)

(c) Root hairs

d)

(d) Phloem tissue

3.

Question 3

The absorption of nutrients and exchange of respiratory gases between blood and tissues take place in_________

a)

(a) veins

b)

(b) arteries

c)

(c) heart

d)

(d) capillaries

4.

Question 4

Blood platelets help in

a)

(a) formation of urine

b)

(b) excretion of urine

c)

(c) sweating

d)

(d) blood clotting

5.

Question 5

Lila observed that a pond with clear water was covered up with a green algae within a week. By which method of reproduction did the algae spread so rapidly ?

a)

(a) Budding

b)

(b) Sexual reproduction

c)

(c) Fragmentation

d)

(d) Pollination

6.

Question 6

Turmeric is a natural indicator. On adding its paste to acid and base separately, which colours would be observed

a)

(a) Yellow in both acid and base

b)

(b) Yellow in acid and red in base

c)

(c) Pink in acid and yellow in base

d)

(d) Red in acid and blue in base

7.

Question 7

Rusting occurs when iron is exposed to

a)

(a) oxygen and water

b)

(b) soil and rain

c)

(c) breeze and sunlight

d)

(d) salt water and clouds

8.

Question 8

Sludge in separate tanks is decomposed to get biogas by

a)

(a) yeasts

b)

(b) aerobic bacteria

c)

(c) anaerobic bacteria

d)

(d) none of these

9.

Question 9

Which of the following can be used to form a real image?

a)

(a) Concave mirror only

b)

(b) Plane mirror only

c)

(c) Convex mirror only

d)

(d) Both concave and convex mirrors

10.

Question 10

In making a battery

a)

(a) positive terminal of one cell is connected to the negative terminal of the next cell

b)

(b) positive terminal of one cell is connected to the positive terminal of the next cell

c)

(c) negative terminal of one cell is connected to the negative terminal of the next cell

d)

(d) none of the above

VII-SCIENCE(ANNUAL REVISION 2022)

Total questions: 10

Worksheet time: 5mins

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