SC.8.E.5.3 Space Hierarchy

Front

What is the main difference between asteroids and comets?

Back

Asteroids are rocky, while comets are balls of ice and dust.

Front

Order the components of the universe from smallest to largest: Planet, Solar System, Galaxy, Universe.

Back

Planet, Solar System, Galaxy, Universe.

Front

What is the primary composition of planets compared to stars?

Back

Planets are composed of solid and liquid materials, while stars are primarily composed of gases undergoing nuclear fusion.

Front

Arrange the following astronomical bodies by size from smallest to largest: Galaxy, Solar System, Planet.

Back

Planet, Solar System, Galaxy.

Front

What distinguishes a solar system from a galaxy?

Back

A solar system is a collection of planets orbiting a star, while a galaxy is a collection of solar systems.

Front

What is a comet primarily made of?

Back

A comet is primarily made of ice and dust.

Front

What is the definition of a galaxy?

Back

A galaxy is a massive system that contains stars, stellar remnants, interstellar gas, dust, and dark matter, bound together by gravity.

Front

What is the difference between a planet and a star in terms of energy production?

Back

Stars produce energy through nuclear fusion, while planets do not produce their own energy.

Front

What is the largest known structure in the universe?

Back

The largest known structure in the universe is the observable universe itself.

Front

What is the role of gravity in the formation of solar systems?

Back

Gravity pulls together gas and dust to form stars and planets in a solar system.