Planets
More Planets
Gravity
Lunar Cycle
Orbits and Rotations
100

The blue and green planet that harbors life.

What is Earth?

100

This planet rotates on its side. 

What is Uranus?

100

Anything with ____ has gravity.

What is mass?

100

All _________ is just reflected sunlight. 

What is moonlight?

100

A repeating path that planets, moons, satellites, etc., take around another object due to gravity.  

What is an orbit?

200
Known as the "Red Planet"; a rover is currently still roaming around the planet.

What is Mars? 

200

This planet has a system of 7 main ring groups. 

What is Saturn?

200

This happens because of the Sun's incredible gravitational force. 

Why do all planets orbit the Sun?

200

The shape we see is simply the portion of the reflected ______ facing our perspective on Earth.

What is sunlight?

200

Rotation causes ___ and _____. 

What is DAY and NIGHT?

300

This planet is covered in yellow clouds made of toxic sulfuric acid. 

What is Venus?

300

Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune.

What are the eight planets in order?

300
This is so because Earth is more dense than the moon. 

Why does Earth have stronger gravitational force?

300

New Moon, Waxing Crescent, First Quarter, Waxing Gibbous, Full Moon, Waning Gibbous, Third Quarter, and Waning Crescent. 

What are the stages of the moon?

300
Earth rotates on its ____ every 24 hours. 

What is an axis?

400

The smallest planet and closest to the Sun. 

What is Mercury?

400

This planet has a huge red spot that is actually a storm.

What is Jupiter?

400

A fundamental, strictly attractive force exerted by all objects with mass. 

What is gravity?

400

This happens because it orbits Earth, causing the angle of sunlight hitting it - and our view from Earth - to shift daily. 

What is the Lunar Cycle?
400

The circular movement of an object around a central point or fixed axis. 

What is a rotation?

500

This planet orbits backward compared to the other planets' rotation. 

What is Neptune?

500

Inner planets are small, rocky/dense, while the outer planets are made of gas/ice.

What are the inner/outer planet characteristics?

500
Gravitational force is different on each planet because of the planet's ____, ____, and _______. 
What is size, mass, and density?
500

A ________ takes about 29.5 days. 

What is lunation?

500

Earth is tilted on its axis of 23.4 degrees, which is why we have _______. 

What are seasons?