Order of the planets
This is the closest planet to the Sun.
What is Mercury?
This icy giant is the seventh planet from the Sun.
What is Uranus?
This NASA program first sent humans to the Moon.
What is the Apollo program?
The ISS is a large structure that orbits this planet.
What is Earth?
These robotic vehicles explore the surface of Mars.
What are Mars rovers?
This planet is the second from the Sun and is the hottest planet.
What is Venus?
This deep blue planet is the eighth and farthest planet from the Sun.
What is Neptune?
This Apollo mission was the first to land humans on the Moon.
What is Apollo 11?
Astronauts live and work in space on this station.
What is the International Space Station?
Rovers explore Mars instead of sending humans because it is safer and this word meaning less expensive.
What is cheaper (or less costly)?
This is the third planet from the Sun and the only planet known to support life.
What is Earth?
The four largest planets—Jupiter, Saturn, Uranus, and Neptune—are known as these types of planets.
What are gas giants (or giant planets)?
This astronaut was the first person to walk on the Moon.
Who is Neil Armstrong?
The ISS is used mainly for this purpose: conducting scientific ____ in space.
What is research (or experiments)?
Rovers take pictures and collect this type of information for scientists.
What is data?
This red planet is fourth from the Sun.
What is Mars?
This planet has the most visible ring system.
What is Saturn?
This astronaut followed Neil Armstrong onto the Moon during Apollo 11.
Who is Buzz Aldrin?
Astronauts float inside the ISS because they experience this condition.
What is microgravity?
Rovers help scientists learn if Mars once had this important liquid.
What is water?
This is the largest planet in our solar system and is fifth from the Sun.
What is Jupiter?
This planet is famous for its Great Red Spot storm.
What is Jupiter?
This famous quote was said during the first Moon landing: “One small step for man, one giant leap for
What is mankind?
The ISS travels around Earth about once every this many minutes.
What is about 90 minutes?
Rovers cannot be controlled instantly because signals take time to travel through this.
What is space?
This planet is famous for its rings and is sixth from the Sun.
What is Saturn?
This planet is unique because it rotates on its side.
What is Uranus?
Apollo astronauts traveled to the Moon using this type of vehicle.
What is a spacecraft (or rocket)?
Many countries worked together to build the ISS; this shows international ______.
What is cooperation (or collaboration)?
Mars rovers are powered by this energy from the Sun or a nuclear battery.
What is energy (or solar power)?