Motions of the Earth

What are the effects of the earth's revolution?

Why areas near the poles receive less heat?

Why the southern hemisphere celebrates Christmas in summers?

What is a leap year?

Why do seasons occur?

When Christmas is celebrated in Australia?

How is the rotation of the Earth responsible for causing day and night?

Distinguish between summer solstice and winter solstice?

Explain the following terms.

What do you understand by the term autumn equinox?

Define rotation and revolution of the Earth.

What causes change in seasons?

Which motion of the earth causes change in seasons?

When do the sun rays fall directly on the equator?

Why days and nights are not of equal length?

Why do the poles experience about six months day and six month night?

What is the shape of the Earth?

How long does it take the earth to complete one rotation around its axis?

Why both hemispheres experience different winter and summer solstice?

What is winter Solstice?