Question

Think and fill the boxes.


1.It can change the shape and size of an object.

2.It is caused due to irregularities of the two surfaces in contact

3 Matter is made up of very small particles called.

4.They determine the sex of an individual.

5.It is the force exerted by our muscles.

6.Pituitary gland is also known as.

7.Sliding friction is alternately known as.​

Answer 1

1. force

2. friction

3. atoms

4. chromosomes (x and y)

5. muscular force

6. master gland

7. dynamic friction