Motion, Force and Work — Science STD 7 — Question

…………… soil is easy to plough but less fertile.

Atomic energy is obtained by using ores of ………….. .

The celestial objects are ………….. .

When seen from a great distance, the sky seems to be touching the ground along a circle. This circle is called the …………… .(meridian, horizon)

Neither conduction nor convection of the heat occurs in thermos flask due to the ……………… .

The pole star has ……………. on one-side and ……………… on the other.

A magnetic field can pass through ………… and …………. .

The moon moves around the earth in about ………….. days.

An electron microscope is necessary for the study of ……………… .

Small leaf like structures near the leaf base is called …………….. .