CBSE Class 7


Soil is a home to several animals. Give examples to support this statement [CBSE Class 7 Science] (1)
What is soil erosion? List the agents of soil erosion [CBSE Class 7 Science] (1)
Rahul conducted an experiment to calculate the rate of percolation. He observed that it took 20 minutes for 200 mL of water to percolate through the soil sample. Calculate the rate of percolation [CBSE Class 7 Science] (1)
Razia conducted an experiment in the field related to the rate of percolation. She observed that it took 40 min for 200 mL of water to percolate through the soil sample. Calculate the rate of percolation [CBSE Class 7 Science] (1)
How is clayey soil useful for crops? [CBSE Class 7 Science] (1)
Locate the following zones given as boxed items in a diagram of soil profile [CBSE Class 7 Science] (1)
Rajasthan is a desert state in India. Once while travelling to Rajasthan by train [CBSE Class 7 Science] (1)
A man digging a pit found that he could dig with ease initially but digging became difficult as he went deeper [CBSE Class 7 Science] (1)
Is it a good practice to remove grass and small plants that are growing in an open, unused field? Give reason to support your answer [CBSE Class 7 Science] (1)
How can a farmer convert acidic soil to neutral soil? [CBSE Class 7 Science] (1)
Which of the following situations ‘A’ or ‘B’ is advantageous for absorption of water and minerals? Why? [CBSE Class 7 Science] (1)
Explain the mechanism of breathing in human beings [CBSE Class 7 Science] (1)
How does gaseous exchange take place in earthworms , fish? [CBSE Class 7 Science] (1)
Distinguish between the following. Breathing and Respiration [CBSE Class 7 Science] (1)
List the similarities and differences between aerobic and anaerobic respiration [CBSE Class 7 Science] (1)
Observe the figures given as (A) and (B) and answer the following [CBSE Class 7 Science] (1)
A food stall owner was preparing dough for making bhaturas [CBSE Class 7 Science] (1)
Observe the figure given below carefully and answer the following questions.Which process is being tested in the activity? [CBSE Class 7 Science] (1)
Observe the figure given below carefully and answer the following questions [CBSE Class 7 Science] (1)
Paheli participated in a 400 m race competition held at her school and won the race [CBSE Class 7 Science] (1)
Explain respiration in plants [CBSE Class 7 Science] (1)
What facilitates opening and closing of stomatal pores? [CBSE Class 7 Science] (1)
Why should you breathe through your nose and not your mouth? [CBSE Class 7 Science] (1)
Explain the process of breathing in fish [CBSE Class 7 Science] (1)
How do frogs breathe on land and in water? [CBSE Class 7 Science] (1)
What happens to the air we breathe in, once it reaches the lungs? [CBSE Class 7 Science] (1)
Write the difference in the composition of inhaled and exhaled air [CBSE Class 7 Science] (1)
Explain the role of the diaphragm in the process of breathing [CBSE Class 7 Science] (1)
Insects and leaves of a plant have pores through which they exchange gases with the atmosphere [CBSE Class 7 Science] (1)
Whenever we feel drowsy or sleepy we start yawning [CBSE Class 7 Science] (1)