Light, Shadows and Reflections — Science STD 6 — Question

A mixture containing potatoes, sctlt and sawdust has been given to you. Outline a stepwise procedure for separating each component from this mixture.

In what situations wouldyou use decantation instead of filtration to separate solids from liquids?

What are the consequences of cutting a large forest area? Make a presentation or do a role play, or write a story or a poem that shows what could happen if we continue to cut down trees in our forests.

Medu does jnot eat vegetables but enjoys biscuits, nqbdles and white bread. He often has stomach ache and constipation. What changes should he make in his diet to get rid of these problems? Explain your answer.

Why are bones in the foot normally set in an arch? What is a flat-foot?

How will you test for protein in a food sample?

If the earth is itself a magnet, can you guess the poles of Earth’s magnet by looking at the direction of the magnetic compass?

The following is an answer given by Boojho to a question asked by his teacher- “Cotton, wool, silk and jute are classified as natural fibres whereas nylon and polyester are classified as synthetic fibres.”
Can you tell what question the teacher has asked?

How can you explain that the human body is a good conductor of electricity?

Distinguish between the following.
Opaque objects and Transparent objects.