Solar System: Chapter 4

Dr. Wise

Solar System Vocabulary


crescent moon


full moon

new moon

phases of the moon




waning moon

waxing moon

What causes day and night?

Day and Night Explanation,Causes Science for Kids

rotate and axis

rotate: to turn on an axis

axis: an imaginary line through the center of an object, Earth's axis passes through the North and South Poles


revolve: to make a path around an object, the Earth takes one year for it to revolve around the Sun, the orbit is in the shape of an ellipse, an ellipse is a circle that is flattened and stretched out

season: one of the four parts of the year-spring, summer, fall, and winter

equator: is an imaginary line that circles Earth halfway between the North and South Poles. It divides Earth into northern and southern halves, each called hemisphere

Summer: the Earth is tilted toward the Sun so it receives strong, direct sunlight, making it summer time

Winter: December: the Earth is tilted away from the Sun, it receives weak, indirect sunlight making it winter time

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Moon Phases

crescent moon: only at thin shape is seen

full moon: all of the Moon's bright side is visible

new moon: none of the Moon's bright side is visible

phases of the moon: the different ways the moon looks throughout the month

quarter moon: half the moon's sunlit side is visible

waning moon: after a full moon, a decreasing amount of the sunlit side of the Moon is seen

waxing moon: after the new moon, an increasing amount of the sunlit side of the Moon is seen

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Objects in space block some of the sun's light producing shadows. An eclipse occurs when one body in space blocks light from reaching another body in space.
The Solar System HD
Learning About The Planets in Our Solar System
The Solar System Song (with lyrics)
Asteroids - Comets and Meteors for Kids | Asteroids - Comets and Meteors Song | Educational Videos