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2
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100

our planet in the solar system

Earth

100

a very small amount

slight 

100

maybe

perhaps

100

top of something

surface

100

to show back

reflect

200

to put on or over something

cast

200

a place along the seashore where boats are kept

harbor

200

The people who live in the group of islands called Greece

Greeks

200

opposite of WEST

EAST

200

what keeps us from falling over

Gravity 

300

Also called plains

prairie

300

Opposite of East

WEST

300

to respect or value

admire

300

Who was the first man on the MOON

Neil Armstrong

300

The planet we live on

Earth

400

Opposite of South

North

400

Why does the MOON shine

because, it reflect light from the SUN

400

Opposite of North

South

400

what shape is the Earth

Sphere

400

what are the 4 directions on a compass

North, South, East, West

500

A machine that flies through space and sends signals

satellite

500

you have found something 

discovered

500

flat land with few trees or hills

prairie 

500

during the day when the moon blocks the sun from reaching the Earth, making it dark for a while on earth during the day

eclipse

500

When was the earth's real shape discovered?

2,500 years ago

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