Air Around Us — Science STD 6 — Question

From where do the wells or tubewells get water?

What property must the components of a mixture of two solid substances possess so that they can be sieved easily?

Why would you not like to use a measuring tape made of an elastic material like rubber to measure distance? What would be some of the problems you would meet in telling someone about a distance you measured with such a tape?

Which type of land is necessary for good growth of redworm?

Classify the following materials into electrical conductors and electrical insulators Leather, iron needle, ebonite rod, key, plastic, graphite (pencil lead), wool, silk, acid, pure water, rubber, aluminium, human body, air, salty water.

Which means of transport was used to travel along water routes in ancient times?

What happens when an opaque object is placed in the path of light?

What would happen if there were no joints in our hands and legs?

State the names of animals and plants that are found in mountain regions.