Choose one word that substitutes the highlighted words.

The students in the science club were shown many groups of stars. 

Constellation 

The word that best substitutes the highlighted words is constellation.

• Orbit is the curved path that an object takes around another object in space.
• Constellation is a group of stars that appear to form a pattern in the night sky.
• Solar system is a star system consisting of a star (the Sun) and the objects that orbit it, including planets, moons, asteroids, and comets.
• Comet is a small, icy body that orbits the Sun.