Substances in Daily Use — Science STD 6 — Question

……………. occupies the largest part of the earth’s surface.

At sea-level, pure water boils at …………… .

The temperature of a substance can fall below …………… .

If an ………….. object comes in the way of a light source, light does not pass it.

The voice box is located in our ……………… .

The spinal cord originates from the …………… .

The solar cooker is an application of the ………… energy of the sun, while solar cells, solar lamps are applications of the ………….. energy of the sun. (light, chemical, heat)

A farmer uses a strong …………. to remove the big stone bogged down in the farm.

Materials that do not stick to a magnet are called ………….. materials.

All food that we consume during the day is together called our ………. .