This is the study of the heavens.
What is Astronomy?
This is a celestial body that orbits a star. The Earth is one of these.
What is a planet?
The moon is the Earth's only ______.
What is a natural satellite?
This star is at the center of our solar system.
What is the Sun?
The solar system is part of this galaxy.
What is the Milky Way Galaxy?
This is a person who studies the stars, planets, and other celestial bodies.
What is an astronomer?
This is the invisible line that the Earth spins on.
What is an axis?
When the Earth passes between the Sun and moon, it causes this eclipse.
What is a lunar eclipse?
These are the four inner planets, and have a rocky composition.
What is Mercury, Venus, Earth, and Mars?
This is a celestial body made of ice and has a tail made of gas and dust that always points away from the Sun.
What is a comet?
Astronomers use tools like ________, which make far away objects appear nearer.
What is a telescope?
The Earth is divided into two of these. The northern and the southern.
What is a hemisphere?
When the moon passes between the Sun and the Earth, it causes this type of eclipse.
What is a solar eclipse?
These are the four gas giants, and are beyond the asteroid belt, making them the outer planets.
What is Jupiter, Saturn, Uranus, and Neptune?
These are the 3 types of galaxies.
What is spiral, elliptical, and irregular?
This is a tool that travels outward to collect photos and data to send back to Earth.
What is a probe?
The four seasons are caused by the Earth's __________.
What is tilt?
This is the first spacecraft that landed humans on the moon.
What is Apollo 11?
This is what keeps all of the planets orbiting the Sun. It is also what keeps moons in orbit of it's planet.
What is Gravity?
When a meteoroid enters the Earth's atmosphere, it becomes this. After it touches the Earth's surface ot becomes this.
What is a meteor and meteorite?
This is the most common theory of how the universe was created.
What is the Big Bang Theory?
When the northern hemisphere is in winter, the southern hemisphere is in this season.
What is summer?
These are the eight phases of the moon.
What are full moon, waning gibbous, third quarter, waning crescent, new moon, waxing crescent, first quarter, and waxing gibbous?
This is the unit to measure the distance of the planets from the Sun. For example, Earth is 1 of these.
What is an astronomical unit?
This is the name of the black hole at the center of our galaxy.
What is Saggitarius A?