Earth
Solar system
Stars
Galaxies
100
What is in the center of Earth?
It's metal core.
100
List the 8 planets are in the solar system.
8 planets: Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune.
100
What do you call the smallest star?
A red dwarf.
100
How large is the Milky Way?
100,000–200,000 light-years.
200
How many Earths can fit in the sun?
1.3 million Earths
200
What is the hottest planet?
Venus.
200
What do you call when a star explodes?
Supernovae.
200
What is the closest Galaxy to our's?
Andromeda.
300
How many percent of water is on Earth?
71 percent.
300
How old is the Solar system?
4.6 billion years old.
300
What are the materials mostly to create heat and light?
Hydrogen and Helium.
300
How many Solar systems are in our Milky Way galaxy?
100 billion Solar systems.
400
How old is the earth?
4.54 billion years
400
How many planets have rings in our solar system?
4: Jupiter, Saturn, Uranus, Neptune.
400
How long does the sun's light travel to Earth?
8 minutes.
500
What is the moon's real name?
Theia.
500
List the dwarf planets.
Ceres, Pluto, Makemake, Haumea, Sedna, Eris.
500
How fast does light travels?
About 186,282 miles per second.