The Solar System
What is the solar system?
The Sun and everything in orbit around it.
What are the 2 movements of Earth?
Rotation (spinning)
Orbit/revolution (going around the Sun)
What is on the surface of the Moon?
Rocks, dust, holes, hills/mountains
Why does the Sun appear to move in an arc across the sky?
Earth's rotation
The Sun is many times larger than the Moon. Why do they appear similar in size from Earth.
The Moon is much closer.
Where is the Sun in the solar system?
Center
How long does it take earth to make one complete rotation?
1 day (about 24 hours)
What does Earth have that the Moon does not?
air, water, life
From which direction does the Sun appear to rise?
East
What shape are the Sun, Moon, and Earth?
sphere
What does a planet orbit?
A star (the Sun)
What does Earth's rotation cause us to experience?
Day and night
What is the name for the holes on the surface of the Moon?
craters
In which direction does the Sun appear to set (go down)
west
Why are large objects spherical?
Gravity
What does a moon orbit?
A planet
How does the Moon Move?
It rotates and orbits Earth
What causes craters?
The impact of rocks (meteoroids) hitting a surface.
Why are shadows long in the morning and late afternoon?
The Sun appears low in the sky.
Why does gravity make large things take the shape of a sphere?
Everything is pulled towards the center.
Larger objects have more gravity.
What force keeps things in orbit around the Sun?
Gravity
Why do we always see the same side of the Moon?
It rotates and orbits at the same rate/speed
Why is the Moon a bad place for people to live?
It doesn't have the things we need.
When are shadows the shortest?
Noon
What evidence do we have that Earth is a sphere?
Boats disappear from the bottom up when sailing away.
Earth casts a curved shadow on the Moon during an eclipse.
People in different parts of the world see different stars.