gyankalakumbhKNOWLEDGE. ART. POSSIBILITY.Why does day become night?
A turning ball can help explain what you see from Earth.
Here is what is happening.
Earth rotates on its axis. A place facing the Sun has daylight; as Earth turns, that place can enter the unlit side. Rotation explains the daily cycle. Earth’s yearly orbit is a different motion.
Pause. Make the idea your own.
Explain one idea to a partner, draw it or write it in your own words. Which part is an observation, an example or a question?
You can use a home language. No need to share personal experiences or finish everything in one sitting.Your little investigation
A ball and a torch with adult help. Keep light away from eyes; never look directly at the Sun.
Keep the torch still and mark one place on the ball.
Turn the ball slowly without moving it around the torch.
Describe when the marked place is lit and when it is dark.
What mainly causes the daily day–night cycle?
Another question is waiting.
Why does a metal spoon feel cooler?
Feeling temperature and measuring it are different things.
Keep the recipe in proportion
Double a recipe without changing its balance.
Fact, opinion or a question?
Before agreeing with a sentence, find out what kind of claim it makes.