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This star is at the center of our solar system.
Sun
This is the planet closest to the Sun.
Mercury
Earth has one natural satellite called ____.
Moon
A huge ball of hot, glowing gas in space is called ___.
Star
Earth is the ___ planet from the Sun.
Third
The Sun gives Earth these two important things.
Light and Heat
This planet is famous for its beautiful rings.
Saturn
The Moon shines because it reflects light from this object.
Sun
Our solar system is located in which galaxy?
Milky Way
How long does it take for Earth to orbit the Sun?
One Year
The Sun is mostly made of these two gases.
Hydrogen and Helium
This is the largest planet in our solar system.
Jupiter
About how long does it take the Moon to orbit Earth?
One month
Person trained to travel into space is called ____.
Astronaut
How long does it take Earth to rotate on its axis?
24 hours or 1 day
This force from the Sun helps keep the planets in orbit.
Gravity
This planet is often called the “Red Planet.”
Mars
This happens when Earth comes between the Sun and Moon and blocks sunlight from reaching the Moon.
Lunar Eclipse
A vehicle designed to travel into space is called this.
Spacecraft
How many planets are in our solar system?
8 Planets
The Sun is a star, but it looks bigger and brighter than other stars because it is much ___ to Earth.
Closer
Name the four planets closest to the Sun.
Mercury, Venus, Earth, and Mars
This happens when the Moon passes between the Sun and Earth and blocks some or all of the Sun from view.
Solar Eclipse
Enormous groups of stars, gas, and dust are found throughout the universe are called ____.
Galaxies
What planet is closest to Earth?
Venus