Gravity & Earth
The Planets
The Solar System
Stars and Galaxies
Other
100
Who discovered Gravity?
Isaac Newton
100
What causes day and night on Earth?
Earth's rotation around it's axis
100
Name the terrestrial planets
Mercury, Venus, Earth, Mars
100
What is the name of our galaxy?
The Milky Way
100
What is the name of the robot that is currently studying mars?
Curiosity
200
What kind of objects are affected by gravity?
ALL objects!
200
What causes seasons on Earth?
Earth's tilt (23.5 degrees) on its axis
200
Name the gas giants
Jupiter, Saturn, Uranus, Neptune
200
What is the closest star to planet Earth?
The Sun
200
Is there gravity on the moon?
YES. There is gravity between ANY two objects in the universe
300
What are the two things that the force of gravity depend on?
Mass of the two objects and distance between the two objects
300
Which is the hottest planet in the solar system?
Venus
300
Name all the planets in order from closest to the sun to furthest away from the sun
Mercury Venus Earth Mars Jupiter Saturn Uranus Neptune
300
Stars are born from clouds of gas called ____________
Nebula
300
What kind of eclipse creates a "blood moon"
Lunar Eclipse
400
How long is an earth day and how long is an earth year?
Day: 23 hours, 56 minutes, and 4.1 seconds Year: 365.25 days
400
The tallest mountain in the solar system resides on this planet
Mars
400
True or False: Jupiter has rings
TRUE, but they are thin and tiny, especially compared to Saturn's rings
400
What are the four types of galaxies?
Spiral, Barred Spiral, Elliptical, and Irregular
400
Which constellation is on the Alaskan State Flag?
The Big Dipper
500
When did Isaac Newton discover Gravity?
1687
500
How long is a year on Neptune?
165 Earth Years
500
TRUE OR FALSE: Planets orbit the sun in a perfect circle
FALSE: The planets orbit the sun in ellipses (ovals) that are very close to circles
500
What are the two forces that are "fighting" each other within stars?
Gravity (pulling star inwards) vs. Pressure from fusion (pushing star outwards)
500
Why isn't Pluto a planet?
There are too many other objects that also have the same orbit as pluto. Pluto hasn't "cleared its neighborhood" like the other planets.
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