Lesson 1
What invisible line does Earth rotate on?
Axis.
What is the surface of the Moon like?
Rocky
The planets in our solar system are split up into two groups, what are they?
Outer and inner planets
A large round body that revolves around the star in a clear orbit.
A planet
What is the difference between a revolution and a rotation?
Revolution: One trip around the sun
Rotation: Day and night
What keeps the moon in place?
Earth's gravity
What separates the planets in our solar system?
The Asteroid Belt
Solar System
Define orbit.
The path something in space takes around another object in space.
Why can we see the Moon?
Because if reflects the light from the sun
What is similar about the inner planets?
Warmer and a large rocky core.
Why are some bodies in space considered dwarf planets?
They don't have a clear orbit around a star, too small.
The tilt of the Earth and its orbit.
Changes in the Moon's appearance.
What is similar about the outer planets?
Small core and more gassy.
What are some of the tools astronomers used in the past to explore space?
Sun dial, telescope.
What are constellations and why can we only see some of them during certain seasons?
Stars that form a pattern. Because of the rotation of the Earth
What are the Moon Phases in order
New moon, first quarter, full moon, third quarter.
What is Earth in that makes life possible?
The life zone.
Name all the planets in order.
Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune.