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ZingPath: Galaxies and the Universe

Classifying the Components of the Universe Using Models

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Galaxies and the Universe

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Lesson Focus

Classifying the Components of the Universe Using Models

Earth & Space Science

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You get to learn all about galaxies, including our own Milky Way galaxy. Learn about the formation and expansion of the universe, including the big bang theory.

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Now You Know

After completing this tutorial, you will be able to complete the following:

  • Describe the physical properties of the sun.
  • Describe the movement of the sun.
  • List the components of the universe.
  • Classify the components of the universe by using models.

Everything You'll Have Covered

What is the definition of a star?

~ Stars are luminous celestial bodies that generate energy and heat from within.

What makes some stars brighter than others?

~ The brightness of a star is determined by its size, temperature, and age.

The Hertzsprung-Russell diagram below is incomplete. Complete the diagram by adding white dwarves, supergiants, and giants in their correct location.

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What does the Hertzsprung-Russell diagram illustrate?

~ The Hertzsprung-Russell diagram illustrates the brightness of various stars compared to the sun's brightness, as well as the stars' temperatures. It also indicates the names given to the various categories of stars. These categories include the main sequence of stars, white dwarfs, supergiants, and giants.

What are nebulae?

~ Nebulae are large clouds of gas and dust. The gravitational pull that these particles of gas and dust have on each other causes nebulae to form stars.

What is the name of our galaxy? What does it contain?

~ The universe is full of galaxies. The name of our galaxy is the Milky Way. It contains the eight planets in our solar system, stars, gas, and dust, all of which are all bound together by gravity.

Tutorial Details

Approximate Time 2 Minutes
Pre-requisite Concepts Students should be able to define dwarf, Ejnar Hertzsprung, and galaxy.
Course Earth & Space Science
Type of Tutorial Animation
Key Vocabulary dwarf, Ejnar Hertzsprung, galaxy