Garbage In, Garbage Out — Science STD 6 — Question

Why do desert snakes burrow deep into the sand during the day?

Why are plastics harmful?

Chalk, iron nail, wood, aluminium, candle, cotton usually look different from each other. Give some properties by which we can prove that these materials are different.

How will you prove that oxygen supports burning?

Where does honey come from? How is it produced?

A bar magnet has no markings to indicate its poles. How would you find out near which end is its north pole locataed?

While travelling in a train, it appears that the trees near the track are moving whereas co-passengers appear to be stationary. Explain the reason.

Bones are hard structures and cannot be bent. But, we can still bend our elbow, knee, etc. How is this possible?

What is filtration?

Sheela, Saima and Ravi have to dissolve maximum amount of sugar in the same amount of milk so as to win in a game. Ravi took hot boiling milk while Saima took ice cold milk. Sheela managed to get milk at room temperature. Whom do you think would win the game and why?