Fibre to Fabric — Science STD 6 — Question

Why are you advised to eat a variety of foods?

What are the two types of energy consumed by human civilisation?

Name the substances which are present in traces in air. What are these together called?

In which forms, water exists on the earth?

Name some devices in which we use an electric cell.

Why should a meal have different food items?

If you cannot find a strainer or a clean piece of cloth while making a tea in which you added tea leaves. What method would you like to apply for a cup of tea without leaves?

What type of motion is exhibited by a swing?

Raghav puts a food sample on a piece of paper and crushes it. The paper becomes translucent. In which nutrient/supplement is the food rich in?