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Why does the positions of the astronomical objects vary in different seasons?
It is due to the rotation and revolution of Earth
Why is a total lunar eclipse red copper color?
It is due the reflection of sunlight.
How long does the speed of the rotation and revolution takes?
27 days
What is the direction of the Earth's rotation if we watch from side?
anti-clockwise
How to carry out a scientific investigation?
Make observations, Set a question, Propose a hypothesis,Carry out experiments andrecord results, draw a conclusion
The equator divides the Earth into what and what?
Northern Hemisphere , Southern Hemisphere
The Earth revolves around the Sun from where to where?
west to east
