Question

Science worksheet for std 8
Chapter 10 &11
0-1 Fill in the blanks
1. Between the age of 11 years and 19 years are
called
2. Children gain height during -
_are secretion of endocrine gland.
4. To draw water from a well we have to ______at the rope.
5. A charged body on uncharged body.
6. The north pole of a magnet ____ the north pole of the magnet.
7. To move a loaded trolley we have to _____ it.
Q-2 write true or false
1. Pituitary glands secrets hormones which include growth hormone
2. Testosterone is the female hormone
3. Sex of unborn baby depend on chromosomes_
4. Force per unit area is called pressure_
5. Force could be push or pull
Q-3 Give answer in one sentence.
1. What is force?
2. What is called pressure?
3. What is adolescence?
4. What is puberty?
5. What is atmospheric pressure?​

Answer 1

Answer:

1Adolescence, 2adolescence,3hormones,4 pull 5, attract,6 repel,7 pull.

question 2,1 false,2 false,3 true,4 true,5 true.

question 3. 1 push or pull is called force.or

an external cause on the body which changes or try to change its position is called force.

2. Pressure is the force per unit area.

3. The age between 11to 18 years is called adolescence .In this age many changes occur in the both boy and girl body as physical and emotional change.

4. Puberty is named for changes that occurs during adolescence.

5. The pressures that is exerted by our atmosphere or air is called atmospheric pressure.