Gravity and the Solar System
Models of The Solar System
Terrestrial Planets
Gas Giants Planets
Small Bodies in our Solar System
100
This force of attraction exists between all objects with mass in the universe.
What is Gravity
100
The Sun is at the center of this system, which includes planets, moons, asteroids, and comets.
What is the Heliocentric Model?
100
This is the closest planet to the Sun.
What is Mercury?
100
This planet is known for its beautiful ring system, visible even with a small telescope.
What is Saturn?
200
The force of gravity between two objects depends on their mass and this factor.
What is distance?
200
Galileo observed this, supporting the idea that not everything orbits Earth.
What are Venus's phase?
200
Mercury's surface is covered with these round depressions caused by impacts.
What are craters?
200
This gas giant has the strongest gravity of any planet in our solar system.
What is Jupiter?
200
This dwarf planet in the Kuiper Belt has a moon almost half its size.
What is Pluto?
300
This is what we call the path an object takes as it orbits around another due to gravity.
What is an orbit?
300
Planets move in these shaped orbits around the Sun, not perfect circles as once thought.
What are ellipses?
What is elliptical orbit?
300
This planet is often called Earth's "twin" due to its similar size.
What is Venus?
300
The outer planets are mainly composed of these two elements.
What is Hydrogen and Helium?
400
Our solar system formed from this type of large cloud about 4.6 billion years ago.
What is a nebula?
What is a solar nebula?
400
We give credit to this astronomer for developing the geocentric model.
Who is Ptolemy
400
This terrestrial planet rotates in the opposite direction compared to most other planets.
What is Venus?
500
These small bodies were left over after planet formation and are found mainly between Mars and Jupiter.
What are asteroids?
500
This Polish astronomer proposed the heliocentric model
Who is Copernicus?
500
Known as the "Red Planet," this terrestrial world has the largest volcano in our solar system.
What is Mars?