1 Metre, 1 centimetre, 1 kilometre, and 1 millimetre.

Given below is the distance-travelled by an elephant across a forest with uniform speed. Complete the data of the table given below with the idea of uniform speed.

Distance (m)	0	4		12		20
Time (s)	0	2	4		8	10

Complete the web chart.

Define force.

Name different types of motion based on the path.

If you are sitting in a moving car, will you be at rest or motion with respect your friend sitting next to you?

Rotation of the earth is a periodic motion. Justify.

Differentiate between rotational and curvilinear motion.

Define the term matter.

Why do we separate mixtures?

Give an example for mixture and justify your answer with reason.

Define - Sedimentation

Give the main difference between a pure substance and an impure substance.

Leaf – Stem – Root – Flower

Transpiration - Conduction - Absorption - Fixation.

Classify the plants on the basis of their habitat.

Mention few desert plants.

Define the term habitat.

Relate the terms leaves and photosynthesis.