Exploring Substances: Acidic, Basic, and Neutral — Science STD 7 — Question

Name the instrument used to measure rainfall.

What is the term for the movement of the Earth around the Sun?

State whether the following statements are True or False: A very high pressure system with very high speed wind surrounding it forms a cyclone.

Why is a good fuse wire made of tin?

Which gas from the air is essential in the process of food preparation in plants?

Banana is a fruit without seeds. Give reason.

Photosynthesis requires chlorophyll and a few other raw materials. Add the missing raw materials to the list given below:
Water, minerals,

What is the boiling point of water?

To which class, animal fibre or plant fibre, artificial silk belongs to?

Which of the two absorbs more radiation- a dark coloured object or a light coloured object?