A hot glowing star sits at the center of our solar system, and planets travel around it. What is it?

A large round object travels around the Sun and may have moons going around it. What is it?

A natural object travels around a planet, such as the object seen from Earth at night. What is it?

A small rocky object travels around the Sun, and many objects like it are found between Mars and Jupiter. What is it?

An icy body travels in a long path and can grow a bright tail as it nears the Sun. What is it?

Ganymede is bigger than the planet Mercury, but it is called a moon. Why?

Asteroids and comets both travel around the Sun. What is one way an asteroid is different from a comet?

Planets such as Venus and Jupiter can be seen shining in the night sky, but planets do not make their own light. Why can we see them?

The Sun is a star. Why does it look much bigger and brighter than the other stars in the sky?

Why does a comet grow a tail only when it comes near the Sun?

Which statement about moons in our solar system is true?

Some planets are small and rocky, and some are giant planets made mostly of gas. Which planet is a gas giant?

Most asteroids are lumpy, not round like the planets. Why?

About how long does it take Earth to travel once around the Sun?

A comet travels on a long path around the Sun. Where does it spend most of its time?

Saturn is a planet with bright rings around it. What are Saturn's rings made of?

Earth follows a path through space once each year. What object does Earth go around?

The Moon changes position in the sky over many nights. What object does the Moon go around?

In a scale model of the solar system, which object would be the largest by far?

Mars is a planet in our solar system. What object does Mars go around?

Phobos is a small, lumpy natural satellite. What object does Phobos go around?

The eight major planets all travel around the Sun. Which planet travels closest to the Sun?

Jupiter is a planet with many moons. What object does Jupiter go around?

Europa is a large, icy moon. What object does Europa go around?

Halley's Comet returns to the inner solar system after many years. What object does Halley's Comet go around?

Many asteroids in the belt between Mars and Jupiter follow paths through space. What object do those asteroids go around?

Titan is a large moon with a thick, hazy atmosphere. What object does Titan go around?

Neptune is one of the eight major planets. What object does Neptune go around?

In a simple solar system model, a moon follows a path around what kind of object?

Deimos is one of the two moons of Mars. How does Deimos compare in size with Earth's Moon?

Mars, Titan, Hale-Bopp, and Vesta are named objects. Which one is a planet?

Europa, Venus, Eros, and Hale-Bopp are named objects. Which one is a moon?

Bennu, Mercury, Phobos, and Encke are named objects. Which one is an asteroid?

Tempel 1, Neptune, Ganymede, and Ida are named objects. Which one is a comet?

Polaris, Earth, Europa, and Vesta are named objects. Which one is a star like the Sun?

Neptune, Ganymede, Encke, and Vesta are named objects. Which one is a planet?

Titan, Mars, Bennu, and Encke are named objects. Which one is a moon?

Vesta, Venus, Io, and Hale-Bopp are named objects. Which one is an asteroid?

Hale-Bopp, Earth, Deimos, and Psyche are named objects. Which one is a comet?

Mercury, Europa, Ida, and Tempel 1 are named objects. Which one is a planet?