Composition of the Universe

What were the original two elements in our universe?

• Lithium and Carbon

• Hydrogen and Neon

• Helium and Chlorine

• Hydrogen and Helium

According to the big bang theory, all the contents of the universe was compressed under extreme...

• pressure, temperature, and density.

• temperature, shape, and color.

• density, temperature, and shape.

• pressure, color, shape.

Tags

NGSS.HS-ESS1-2

What are stars mainly made of?

• Dust particles

• Hot Liquid

• Hot Gas

• Rock

The universe has may different components.  Which list places four components of the universe in the most likely order from smallest to largest.

• Planets, Stars, Galaxies, Nebulae

• Nebulae, Stars, Planets, Galaxies

• Galaxies, Stars, Planets, Nebulae

• Planets, Stars, Nebulae, Galaxies

Tags

NGSS.MS-ESS1-3

What is the percentage of Hydrogen in the Universe?

•  0.10% 

• 8%

• 91.90%

• 100%

How much of our universe is made up of hydrogen and helium?

• 100%

• 50%

• 99%

• 75%

Tags

HS-ESS1-A-3

What makes up the universe?

• Stars only

• Some galaxies

• the HR diagram

• Space and all the energy and matter in it

Which elements are most

abundant in the visible

universe?

• Hydrogen and Carbon

• Carbon and Helium

• Hydrogen and Oxygen

• Hydrogen and Helium

What term refers to space and all the matter and energy in it?

• Electromagnetic spectrum

• Universe

• Frequency

• Wavelength

Tags

NGSS.HS-ESS1-2

NGSS.HS-ESS1-3

Galaxies are composed of (best answer)

• stars

• stars and gas

• stars, dust, and gas

• stars, dust, and gas held together by gravity