Inner Planets
What are the inner planets in order?
Mercury, Venus, Earth, and Mars.
What is the center of the Solar System?
Sun
What is the largest planet in our Solar System?
Jupiter
Give an example of a dwarf planet
Pluto
Why are they called the inner planets?
Because they are the four planets closest to the Sun.
What is the main element in the Sun
Hydrogen
Which planet has the most rings?
Saturn
What makes the outer planets different from the inner planets?
They are much larger, made mostly of gas and ice, and have many moons.
What are the inner planets mostly made of?
Rock and metal — they are called terrestrial planets.
Why is the Sun important to life on Earth?
It gives, warmth, heat and allows life to grow through photosynthesis.
Which planet spins on its side
Why does the Moon appear to shine even though it produces no light?
It reflects light from the Sun.
Which inner planet is known as Earth’s “twin”?
Venus, because it is similar in size and structure to Earth.
What would happen if the Sun didn't exist?
The planet would get frozen, and would be dark. All life would become extinct.
The outer planets are called?
Jovian planets
What solar system do we live on?
The Milky Way
Which inner planet has the hottest surface temperature?
Venus
What is the Sun and how many times bigger is it than Earth?
It is a dwarf Star and it is 109 times bigger
All outer planets have strong _________ that keeps their moons in orbit
gravity
The path a planet takes around the Sun is called an __________.
Orbit