Solar System
Which planet is known as the red planet?
Mars
What two factors affect gravitational force?
mass and distance
What separates the four inner planets and the four outer planets?
an asteroid Belt
What two forces keeps all the planets in orbit?
Gravity and Inertia
What is the shape of Earths orbit around the sun called?
Elliptical
Icy object that forms a tail as they move closer to the sun
Comet
Small fragments that break from rocky asteroids or icy comets that enter Earth's atmosphere.
Meteors
Why would it be more difficult for the astronauts to run while they are in space?
Lack of gravity
Moons are a planet’s natural satellites. True or False.
True.
What are the key factors that define a planet?
orbits the sun, sphere shape, and clears it's region of the solar system along its orbit.
How much of Earth's atmosphere is oxygen?
A. 80%
B. 71%
C. 20%
20%
Name the outer planets in our solar system in correct order.
Jupiter, Saturn, Uranus, and Neptune
Which object has the most gravity?
A. Sun
b. Jupiter
c. Earth
d. moon
A. Sun. It is the most massive object in our solar system.
If there was no longer a gravitational force from the Sun, what would happen to the Earth?
The Earth would continue to travel in a straight line at a constant speed, leaving its orbit.
If Earth’s atmosphere were too dense, what would happen to our temperature and water?
Surface temperature would increase and water would evaporate into the atmosphere.
Which planet is closer to the Sun, Venus or Jupiter?
Venus
What are Galaxies made of?
A. Dust
B. Gas
C. Stars
D. All of above
D - Galaxies are made of gas, dust, and stars
This object is made of gas, has many moons, and is closer than Saturn to our Earth.
Jupiter
Which planet has the strongest gravity?
Jupiter
The sun has a solid core similar to Earth’s. True or False.
False.
What is the sun?
A Star
Which two planets are on the side of habitable zone where it's two warm (NOT just right)?
Mercury and Venus
These planets have a longer and slower orbit around the sun?
Outer planets
Where is Pluto located?
Kuiper Belt
Where a comet could start its motion before developing a tail.
Kuiper Belt and Oort Cloud