2.- THE MOVEMENTS OF THE EARTH.
The Earth moves two ways. Let's study them.
a) Rotation.
Do you enjoy watching basketball? Have you ever seen a basketball player doing a trick by spinning a ball on his / her finger? That movement is quite similar to the way the Earth rotates.
The rotation of the Earth causes the alternation of day and night. The Earth is spherical so the Sun cannot illuminate the whole planet simultaneosusly. When the Earth spins or rotates, the part of the earth facing the sun has light, which causes daytime there. The other side of the earth will be facing away from the sun, which causes darkness and nighttime there.
It takes the earth abut 24 hours, or one day, to make one complete rotation.
The Earth moves two ways. Let's study them.
a) Rotation.
Do you enjoy watching basketball? Have you ever seen a basketball player doing a trick by spinning a ball on his / her finger? That movement is quite similar to the way the Earth rotates.
The rotation of the Earth causes the alternation of day and night. The Earth is spherical so the Sun cannot illuminate the whole planet simultaneosusly. When the Earth spins or rotates, the part of the earth facing the sun has light, which causes daytime there. The other side of the earth will be facing away from the sun, which causes darkness and nighttime there.
It takes the earth abut 24 hours, or one day, to make one complete rotation.
A
L
C