How Earth Moves
What causes Day and Night?
Earth's rotation
What are the four phases of the moon?
New Moon, First Quarter, Full Moon, Last Quarter
Mercury, Venus, Earth, Mars
What is the solar system?
The solar system is the Sun and all of the objects that orbit around it.
What causes the seasons?
Earth's Revolution
What shape is the Moon?
It is a sphere.
Name the four outer planets
Jupiter, Uranus, Saturn, Neptune
What is a satellite?
Anything that orbits another larger object in space
What would happen to the seasons if Earth's axis were not tilted?
There would be no seasons. A given location would be about the same temperature all year long.
Tell me two ways the Earth and the Moon are different?
1) An Earth Day last 24 hours, a Moon day lasts more than 27 Earth days
2) The moon has less gravity
3) The Moon has many craters, the Earth has few
4) Earth has a lot of water, the Moon has no liquid water
What two things does Earth receive from the Sun?
Light and heat
What is a star?
The Sun; a hot, glowing ball of gases
What is an orbit?
The path an object follows as it revolves around another object
What is a crater?
A hollow area, or pit, in the ground
How would life be different without a telescope?
We could not learn as much about the objects in our solar system
What is an axis?
An imaginary line drawn through the center of the Earth
How are rotating and revolving different?
Rotating is motion around an axis. Revolving is motion around another object.
You see different amounts of its lighted part as it revolves around Earth caused by the Sun.
Why would life as we know it be impossible on Mercury?
Mainly because it has no air or water. Also it is too hot on the side facing the Sun and too cold on the side facing away from the Sun.
What is the definition of a planet?
A large body of rock or gas that orbits the Sun