Earth, Moon, And Stars: Science

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Science

Earth, Moon, and Stars Ms. Jillian Myers Third Grade Class 10/12/09

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Post-Test

End Show

Observe that light travels in a straight line until it strikes an object and is Reflect:

reflected and/or absorbed.

Light travels from the flashlight in a straight line until it reaches the surface of the mirror. The glass of the mirror reflects the light away from the mirror’s surface.

Absorb:

Light travels from the flashlight in a straight line until it reaches the surface of the door. The wood in the door absorbs the light, so that we are unable to see the light on the other side of the door.

The Earth turns in two ways. The first way that the Earth turns is it revolves around the sun. It takes the Earth 365 days or one year to completely rotate around the sun. The second way that the Earth turns is on an axis. To understand what an axis is, look at a globe. A globe sits slightly tilted and spins at an angle around a pole. In real life, the pole is imaginary, but we call this imaginary pole an axis. The sun appears to move everyday from east to west, because of the way that the Earth rotates. Japan is the first country to see the sun everyday and the U.S.A. is the last.

The moon and stars in the night sky also seem to gradually move every night. The moon revolves around the Earth, making the moon have eight different phases. It takes the moon a month to completely rotate around the Earth. The stars appear to move, because as the Earth revolves around the sun, the Earth’s position in space changes making the stars seem to have moved when they have not.

The Eight Phases of the Moon

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To make observations of the moon: • Take a picture of the moon every night for a month • Write a description about the moon every night for a month • Create a picture/poster of how the moon appears for every night for a month • Other ideas?

Think it over!!

**Why would it be important to observe the moon for an entire month?**

Which is the correct order for these four phases of the moon? A. new moon, first quarter, full moon, third quarter B. full moon, new moon, third quarter, first quarter C. third quarter, full moon, first quarter, new moon D. first quarter, new moon, full moon, third quarter

Approximately how much time does it take for the Earth to revolve around the Sun? A. a month B. a year C. a week D. a day

What happens when light strikes a shiny object? A. The light stops B. The light bounces back C. Nothing happens D. It is absorbed

Excellent! You answered correctly!

OOPS! WRONG ANSWER, TRY AGAIN.

Which object revolves around the Earth once a month? A. sun B. stars C. moon D. solar system

How many days does it take for the moon to go through all its phases? A. year B. week C. month D. day

What phase is the moon in when we do not see the moon? A. new moon B. first quarter C. full moon D. third quarter

Credits: North Carolina Standard Course of Study http://stardate.org/nightsky/moon/ Youtube.com

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