A: Day and night is caused by the rotation of the Earth about its axis. At any given time, the half facing the Sun will be shined upon while the other half will have no light. Places in the former will therefore experience day while places in the latter will experience night.
Rena: What is the speed of the rotation of the Earth?
Since the circumference of the earth at the equator is 24,901.55 miles, a spot on the equator rotates at approximately 1037.5646 miles per hour (1037.5646 times 24 equals 24,901.55) (1669.8 km/h).
Ting Ting/Ker Peng: Why is the earth tilted?
A: http://sciencenetlinks.com/science-news/science-updates/tilted-earth/
Rashini: Why cant we feel the movement when the earth rotates?
A: http://earthsky.org/earth/why-cant-we-feel-earths-spin
Thaqifah: Can we live in other planets? What is on the other planets?
A: No we can't as the other planets lack the living conditions that we need such as water, air, food and suitable temperature. The other planets are probably all gaseous, like Jupiter. This means the surface temperature would be way to high to support life, and the planets would all be of the gaseous type. None of them is likely to be solid and non would be suitable for living.
Kiev: Do all the planet revolves around the sun 365.25 days?
A: No. Saturn takes roughly 29.5 years, Jupiter roughly 12 years, Mercury roughly 88 days etc...
Justin: What does the equator stands for?
A: The Equator usually refers to theEarth's equator: an imaginary line on the Earth's surface equidistant from the North Pole and South Pole, dividing the Earth into the Northern Hemisphere and Southern Hemisphere.
Ting Ting/Ker Peng: Why is the earth tilted?
A: http://sciencenetlinks.com/science-news/science-updates/tilted-earth/
Rashini: Why cant we feel the movement when the earth rotates?
A: http://earthsky.org/earth/why-cant-we-feel-earths-spin
Thaqifah: Can we live in other planets? What is on the other planets?
A: No we can't as the other planets lack the living conditions that we need such as water, air, food and suitable temperature. The other planets are probably all gaseous, like Jupiter. This means the surface temperature would be way to high to support life, and the planets would all be of the gaseous type. None of them is likely to be solid and non would be suitable for living.
Kiev: Do all the planet revolves around the sun 365.25 days?
A: No. Saturn takes roughly 29.5 years, Jupiter roughly 12 years, Mercury roughly 88 days etc...
Justin: What does the equator stands for?
A: The Equator usually refers to theEarth's equator: an imaginary line on the Earth's surface equidistant from the North Pole and South Pole, dividing the Earth into the Northern Hemisphere and Southern Hemisphere.
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