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Row 1, Col 1
Scientists believe the Earthand our solar system
formed about _____ yearsago.
5 billion years
1,2
The closest star to Planet Earth is _____.
VenusSun
North Star
Sun…the only star in our solar system!
1,3
This celestial object orbits, revolves around,the Earth; it is Earth’s
natural satellite.
Moon…the moon’s gravity causes our ocean tides
1,4
Green plants, producers, are able to produce food. What are
The 4 things plants need for photosynthesis?
Water, Sunlight, carbon dioxide, and chlorophyll
2,2
The only objects in the Universe that produce
their own light…moons, stars, planets
Stars…balls of burning gases
2,3
True or FalseThe Moon shines in the sky
because it produces light.
FALSE…it reflects the Sun’s light
2,4
We have ____ because the Earth is tilted at about 23 ½° and it orbits the Sun…
•When the Sun rises higher in the sky, due to Earth’s tilt,it gives more concentrated heating to Earth’s surface.
•More daylight hours, due to Earth’s tilt, producesmore heating of Earth’s surface.
Seasons
3,2
The planets, moons, and other celestial
bodies stay in their orbitsaround the Sun because
of this force:
Gravity
3,3
When we look at the Moon over several
days, it seems to change shape. These moon
shapes are called __.
phases
4,2
The Earth revolves (orbits) around the Sun.
The Earth’s path around the Sun is slightly elliptical (oval), It’s path is almost a ________.
Circle
4,4
Earth recycles the water onIts surface; it is called the ___.Liquid water changes to a gas =
Rain, sleet, hail, and snow are forms of
Water vapor condenses to form clouds =
Water Cycle
evaporation
precipitation
condensation
5,2
The layer of gases thatsurround a planet.
_______ and ________ are the two main gases that blanket Earth.
atmosphere
nitrogen oxygen