Show:
Planets
Space
Moon
Earth
Fast Facts
100
The distance between Earth and the Sun.
What is one astronomical unit?
100
A chunk of rock that circles the sun between the orbits of Mars and Jupiter.
What is an asteroid?
100
The changing views of the Moon seen from Earth.
What is a moon phase?
100
The motion that describes Earth's orbit around the Sun.
What is a revolution?
100
This takes place when Earth passes between the Sun and the Moon.
What is a lunar eclipse?
200
This includes planets and other objects, such as asteroids and comets.
What is a solar system?
200
Made mainly of rocky particles and water ice, as its orbit approaches the Sun parts of it vaporize and form a tail.
What is a comet?
200
The moon surface feature that fromed when lava flows filled large basins.
What is a maria?
200
Time of year when the Sun reaches its greatest distance north or south of the equator.
What is a solstice?
200
The term referring to an increasing amount of light being revealed.
What is waxing?
300
These four planets are considered the "terrestrial" or inner planets.
What are Mercury, Venus, Earth and Mars?
300
A large cloud of gas, ice and dust rotating slowly in space.
What is a nebula?
300
Meteorites that strike the Moon's surface cause which surface features?
What are craters?
300
The motion of Earth spinning on its axis.
What is a rotation?
300
The term referring to a decreasing amount of light being revealed.
What is waning?
400
These planets are made mostly of gas and orbit the Sun outside of the asteroid belt.
What are Jupiter, Saturn, Uranus and Neptune?
400
A star in our solar system that produces energy by fusing hydrogen into helium in its core.
What is the Sun?
400
The lunar surface feature that is lighter in color because it is cliffs or mountains.
What are highlands?
400
The time of year when Earth's tilt is neither toward nor away from the Sun, achieving equal amounts of day and night.
What is an equinox?
400
This takes place when the Moon passes between Earth and the Sun.
What is a solar eclipse?
500
An object that orbits another object in space is known as this.
What is a satellite?
500
Meteors that fall to Earth's surface are known as this.
What is a meteorite.
500
The phase of the moon in which the face is dark due to the Moon being positioned between the Sun and the Earth.
What is a new moon?
500
The imaginary line around which Earth spins.
What is an axis?
500
This occurs because of the tilt of the Earth and its revolution around the sun.
What are seasons?