Toothpaste that contains (a)   helps to reduces the risk of tooth decay.

We must use dental (a)   to remove the food slipped in between teeth gaps.

Food go through the (a)   system for digestion.

Complete the sequence of food flow during digestion.

Mouth > (a)   > Stomach > Intestine > Anus

Actions that disrupt the digestion process can cause vomiting, stomach ache and (a)   .

An acidic substance has (a)   taste.

An alkaline substance has (a)   taste.

The purple colour of purple cabbage extract turns to (a)   colour in acidic substances.

Besides litmus paper, acidic and alkaline substances may also be tested using extracts of purple cabbage, turmeric and (a)   .

What are the objects located between Mars and Jupiter?

(a)  

The Sun is the (a)   of the Solar System.

All the planets are rotating on their axes and at the same time revolving around the Sun on their own (a)   .

Name the nearest planet to the Sun.

(a)  

Which planet has the longest orbit?

(a)  

Name the planet that takes 365 days to revolve around the Sun.

(a)  

A pulley is an example of a (a)   machine.

Name the machine shown.

(a)  

Name the machine shown.

(a)  

A pulley enables loads to be lifted easily with less (a)   .

The ginger and onion plant reproduce through (a)   .

(a)   are animals that eat other animals only.

Name the method that can produce new plants from tissues of parent plant that are placed in a nutrient medium.

(a)  

An object that is (a)   than water will sink.

The length of piece of paper is 15 cm and its width is 8 cm. Therefore, the area of the paper is (a)   .