Day and Night
Day and Night: Overview
This Topic covers sub-topics such as Rotation of Earth, Night Time and, Daytime
Important Questions on Day and Night
Earth is one of the planets in the solar system. All the other planets spin on their axes like Earth does. But they spin at different speeds. Look at the data in the table. Mercury takes Earth days to complete one spin. This means one 'day' on Mercury would be like days on Earth!
| Planet | Time taken to complete one spin |
| Mercury | Earth days |
| Venus | Earth days |
| Earth | Earth hours |
| Mars | Earth hours |
| Jupiter | Earth hours |
When a planet spins on its axis, what does the half of the planet facing the Sun experience?
All the planets spin on their axes. Why do all the planets have some hours of daylight and some hours of darkness?
Why does almost every part of the Earth's surface have some hours of daylight and some hours of darkness every day?
How long does Earth take to spin once round its axis?
Draw a ray diagram of the Sun's rays travelling to Earth.
Write the labels for the features numbered on the diagram.
What would it be like if the Earth completed one rotation every hours?
Look at the picture. Can you tell what time of the day is it?
There would be no night or day on the Earth.
Write three things that are different between day and night.
Write the correct answer from the given options.
Day has sunlight, night is _____ (bright/dark).
What is rotation? What is a revolution?
The earth spins from west to east.
Day and night appear alternately on the earth _____.
Draw the figures of the earth and the sun showing the formation of day and night.
Choose the right word from the box:
| Core | geology | volcano | mantle | crust | mountains | Rotation | equal | summer | earthquake | tilted | equator |
Days are longer in _____.
What is the difference between day and year?
What is the effect of rotation of the earth on our lives?
