Class 7 Science Important Questions for exams

Class 7 Science Important Questions for exams. Please refer to the examination notes which you can use for preparing and revising for exams. These notes will help you to revise the concepts quickly and get good marks.

Question Bank

Biology

Q.3. Define photosynthesis. Support your answer with a suitable word equation.

Q.4. Give reasons for the following:

1. Cows can digest cellulose but humans cannot.
2. Gardeners prefer soil with plenty of humus content.

Q.5. a. Give one difference between clayey soil and sandy soil. b. Name one crop that grows best in loamy soil.

Q.6. Explain the saprotrophic mode of nutrition in fungi.

Q.7. a. Observe the given diagram and label the parts A, B, C and D.

• In a given soil sample, it took 10 minutes for 200ml of water to percolate. Calculate the rate of percolation in your soil sample.

Q.8. Complete the following table:

Q.9. a. Use of plastic bags should be banned completely. Why?

1. Explain the mode of feeding and digestion in Amoeba. Support your answer with a well labelled diagram.

QUESTION BANK FOR SECOND TERM PHYSICS/CHEMISTRY

1. Give one word answer

1. a) Path of an electric current

1. b) A group of cells joined c) Magnet produced by electricity.

1. d) A safety device that protects

2. Match the column

1. Electromagnet a) Indicates current

2. Insulator b) Hearing effect

3. Galvanometer c) Magnetic effect

4. Electric heater d) Tempn at}I'J

5. Microphone e) Rubber

3. Differentiate between an open and a closed circuit with the help of diagrams.

4. What is a fuse wire? Vvhat are the characteristics of the material used to make a fuse wire?

5. Describe a simple ex\ eriment to show that a wire carrying current has a magnetic field.

6. Draw a lahele(j. diagram and explain the working of an electric bell.

1. Define the following term:
2. a) Ref lection
3. b) Angle of incidence c) Angle of retlection

8. Give one word answer

1. a) A line representing the direction of b) An image that caJ.mot be put on screen.
2. c) A piece of glass with one or both sides curved allows the light to pass throug

QUESTION BANK BIOLOGY

Q1. Fill in the blanks:

1. a) helps in the transport of glucose in plan
2. b) is a component of blood which helps in formation of a clo c) Circulation in takes place with the help of water.
3. d) and are eliminated during sweatin e) Insects have for breathing.
4. f) Anaerobic respiration of is used in wine and beer making industr g) The amount of nitrogen in inhaled and exhaled air is
5. h) Earthworms take in oxygen from their surroundings through. Q2. Name of following :
6. Underground stem with buds
7. Type of reproduction in algae c. Male organs of a flower
8. Fusion of male and female gamete. Q3. Differentiate between the following a. Self and cross pollination
9. Asexual and sexual production
10. Wind and animal dispersed seed. d. Arteries and Veins.
11. Inhalation and exhalation
12. f. Anaerobic and aerobic respiration.

Q4. Explain the transport of water and minerals in plants

Q5. Explain the circulation of blood in the human body. Support your answer with a well labelled diagram.

Q6. Give reasons

1. Insects prove very beneficial to flowering plants.
2. Only one plant of mint is required for a garden full of mint. c. Seeds must go far from the parent plants.

Q7. Explain how the roots of the plants also show respiration. Support your answer with a suitable diagram.

Q8. Draw the diagram of a human respiratory system and label the following in the diagram:

1. a) Trachea b) Lungs
2. c) Alveoli
3. d) Diaphragm

Q9. Draw the following a) Pistil 

1. b) Stamen
2. c) Human excretory system

Holiday Home Work

Physics

“Ashes were already falling, not as yet very thickly. I looked round: a dense black cloud was coming up behind us, spreading over the earth like a flood. 'Let us leave the road while we can still see,' I said, or we shall be knocked down and trampled underfoot in the dark by the crowd behind.”- Written by 18 year old to a friend after seeing Mt.

Vesuvius erupt on August 24, 79 AD. Dear Students of Grade 7,

It could be any of us in place of this kid, who was an eye witness to a volcanic eruption. We hear about natural disasters striking Mother Earth without any obvious warnings. Giving a serious thought to natural disasters that can completely turn our lives topsyturvy ,we want you to choose any one natural disaster from the following list and work on a special project  demonstrating what you have learnt, in a fun and interesting way.

♦ Floods

♦ Cyclonic Storms

PHYSICS PROJECT

Prepare a Handwritten Information booklet consisting of 8 pages( Use A-4 sheets) highlightingpagewise, the following information. The information should be very brief but relevant.

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