Our Home, the Earth
This is an imaginary line the circles the earth.
The equator.
This means to become gradually larger.
Waxing
This is our sun and everything that moves around it.
The Solar System
Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune
These are rocky objects found in space.
Asteroids
This is an imaginary line that runs through the center of the earth from the North Pole to the South Pole.
Axis
This means to become gradually smaller.
Waning
The Sun
Name four features of a gas giant.
Gassy surface, rings, lots of moons, giant sizes.
Where is the Asteroid Belt?
Between Mars and Jupiter
How long does it take for the earth to rotate once?
24 hours.
What did astronauts find when they traveled to the moon?
Rocks and dust.
These are dark spots on the sun.
Sunspots.
The four planets closest to the sun are called these.
Inner planets.
What happens if a comet comes close to the sun?
It develops a tail.
What causes day and night?
The earth's rotation.
Where does the moon's light come from?
It reflects it off the sun.
How long does it take the earth to orbit the sun?
365 1/4 days.
Name four features of terrestrial planets.
No rings, rocky surfaces, few or no moons, and smaller sizes.
What do you call and object from space that has struck the earth's surface?
A meteorite.
What causes the seasons?
Earths orbit, and tilt on its axis.
How long does it take for the moon to rotate and orbit the earth?
29 1/2 days
Why do some planets take longer to orbit the sun than others.
They are further away.
What do you call a planet-like body that is too small to be a planet?
A dwarf planet.