The solar system
What is the name of the planet closest to the sun?
Mercury
What is a black hole?
A region of space where gravity is so strong that nothing can escape, not even light
What is the name for huge systems of stars, dust, and gas in space?
Galaxies
How many moons does Earth have?
one
What do we call a rock that burns up in Earth's atmosphere?
A Meteor
Which planet is known as the “Red Planet”?
Mars
What planet is sometimes called Earth’s “twin” because of its size?
Venus
How long does it take the Earth to orbit the sun?
One year / 365.25 days
How many moons does Mercury have?
What is the difference between a comet and an asteroid?
Comets are primarily made of ice, dust, and rocky materials, while asteroids are primarily composed of rock and metal.
What is the largest planet in our solar system?
Jupiter
What is a group of stars that form a pattern called?
Constellation
Which planet spins the fastest on its axis?
Jupiter (it rotates once in about 10 hours!)
How long does it take the Moon to orbit the Earth?
27 days
What is a star made of?
Hydrogen and Helium
Which planet has the most rings?
Saturn
What is the name of the galaxy Earth is in?
The Milky Way
What does an astronaut wear to stay safe in space?
A space suit
What is the name of the only natural satellite of Earth?
The moon
What does a star’s color tell us about its temperature?
a good indicator of its surface temperature
What force keeps Earth and other planets in orbit around the sun?
Gravity
What tool do astronomers use to look at stars far away?
Telescope
What protects Earth from harmful solar radiation?
The atmosphere / ozone layer
Who was the first person to walk on the moon?
Neil Armstrong
Why do stars shine?
using the magnitude scale