Chapter 2
Chapter 2 questions and answersQ. Why do we have day and night?
A. We have day and night because the Earth rotates. It spins on its axis, which is an imaginary line passing through the North and South PolesThe Earth spins slowly all the time, but we don't feel any movement because it turns smoothly and at the same speed. Q.Why do we have seasons? A. We have seasons because the earth is tilted (wonky) as it makes its yearly journey around the sun. Q. Why are days 24 hours? A. Days are 24 hours because that's how long it takes for Earth to spin on its axis once. Q. What is a leap year? Why? A. A leap year is a year, occurring once every four years, that has 366 days including February 29 as an intercalary day. Q. How many days are in a year? Why? A. There are 365 days in a year, except for leap year,and in that case, 366. We have 365 days because A Earth year is the time it takes the earth to make one orbit of the sun. Diagram of the earths rotation around the Sun:
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