Definitions
This is any object found in space, such as a star, planet, moon, or asteroid.
What is a celestial body?
This rocky planet is closest to the Sun and has no atmosphere.
What is Mercury?
This celestial body orbits a planet and reflects light.
What is a moon?
The Sun produces its own light.
What does it mean to emit light?
The Moon is this type of satellite.
What is a natural satellite?
This celestial body is a huge ball of burning gases that produces its own light
What is a star?
This gas giant is famous for its rings and is the second largest planet.
What is Saturn?
A dwarf planet in the Kuiper Belt, once called the ninth planet.
What is Pluto?
This planet is visible because it reflects sunlight.
What is Earth (or any planet)?
This human-made object orbits Earth and sends signals for GPS and weather.
What is an artificial satellite?
A small, rocky object that orbits the Sun, mostly found between Mars and
What is an asteroid?
Name the fourth planet from the Sun. It's rocky, red, and may have frozen water.
What is Mars?
This small object enters Earth's atmosphere and burns up, creating a streak of light.
What is a meteor?
Stars do this, which is why we see them at night.
Twinkle and emit light.
A robotic vehicle that drives around on the surface of other planets collecting data about the planet.
What is a rover?
A tool used to observe distant objects in space from Earth.
What is a telescope?
This large gas planet has powerful storms, including a giant one bigger than Earth.
What is Jupiter?
A meteoroid that survives its trip through the atmosphere and hits Earth.
What is a meteorite?
This kind of celestial body always reflects light, never emits it.
What is a planet, moon, comet, meteoroid or asteroid?
This vehicle carries astronauts to space and keeps them alive during launch, travel, and re-entry.
What is a crewed or manned spacecraft?
A dwarf planet orbits the Sun and is round like a sphere. ______ is missing to be a planet.
What is clearing its orbit of other objects?
This deep blue planet is made mostly of icy gases like methane and has the strongest winds in the solar system.
What is Neptune?
This celestial body orbits the Sun, is spherical, but hasn’t cleared its orbit of debris.
What is a dwarf planet?
These objects are still in the sky during the day, but we usually can't see them because of the Sun’s bright light
What are stars, moons, and planets?
This orbiting lab is shared by many countries and lets astronauts live for months while doing science in microgravity.
What is the International Space Station?