This is the planet we live on.
What is Earth?
The Moon shines at night because it reflects this.
What is sunlight?
This is the closest star to Earth.
What is the Sun?
This is a person who travels into space.
What is an astronaut?
Space is completely ______. (No air!)
What is silent? (or "a vacuum")
This red planet is known as Earth's neighbor.
What is Mars?
The Moon orbits around this.
What is Earth?
Stars shine at night in this shape.
What is a point? (or "twinkle")
This U.S. space agency sends astronauts to space.
What is NASA?
This happens to astronauts when they float.
What is zero gravity?
This planet has big rings around it.
What is Saturn?
The Moon has no ______. That’s why it's silent.
What is atmosphere?
This group of stars makes a picture in the sky.
What is a constellation?
This man was the first person to walk on the Moon.
Who is Neil Armstrong?
Earth spins around once every 24 hours. This causes ______.
What is day and night?
This is the biggest planet in our solar system.
What is Jupiter?
When the Moon blocks the Sun, it’s called a ______.
What is a solar eclipse?
This famous constellation looks like a big spoon.
What is the Big Dipper?
This rocket-powered vehicle carries people into space.
What is a spaceship? (or rocket)
A shooting star is really a burning ______.
What is a meteor?
This dwarf planet was once considered the ninth planet.
What is Pluto?
The shape of the Moon seems to change. These are called ______.
What are moon phases?
A huge ball of burning gas is called a ______.
What is a star?
The first dog to go into space was named ______.
What is Laika?
A giant explosion that ends a star’s life is called a ______.
What is a supernova?