Fill in the blanks: (a) The planet which is farthest from the Sun is _______. (b) The planet which appears reddish in colour is ______. (c) A group of stars that appear to form a pattern in the sky is known as _____. (d) A celestial body that revolves around a planet is known as ______. (e) Shooting stars are actually not ______. (f) Asteroids are found between the orbits of _____ and ______.

I want  complete notes on the chapter friction 

In my book subtopics are:

Friction 

Types of friction 

Factors affecting friction 

Methods of reducing friction 

Methods of increasing friction 

Advantages and disadvantages of friction 

Some real life based situation where friction is applied.

How to make a monomer into polymer if it is an addition polymer example

This planet, _______ is yellowish in colour and has many rings and satellites.

A. Uranus

B. Jupiter

C. Neptune

D. Saturn

Pasteurized milk does not need to be boiled. Why?

Write the $pH$ value of the

1. Saliva (before meal)

2. Saliva (after meal)

3. Lemon juice

4. Colourless aerated drink

5. Carrot juice

6. Coffee

7. Tomato juice

8. Tap water