Nebular Expansion Theory

______ is a force that causes dust particles to stick together in a nebula.

• nuclear fusion
• gravity
• hydrogen
• iron

Tags

NGSS.HS-PS2-4

All stars begin as a __________?

• giant
• black hole
• white dwarf
• nebula

Nebula's are mixtures of gases and what?

• clouds
• stars
• tiny particles
• dust

What force acted on the massive nebula to collapse it and eventually form our sun?

• electrostatic force
• strong force
•  weak force
• gravity

Tags

NGSS.HS-PS2-4

What is the first stage of the life cycle of a star for all stars?

• nebula
• protostar
• main-sequence
• red giant

This is a young star that glows as gravity brings it together

• Nebula
• Protostar
• Main-sequence star
• Red giant

Tags

NGSS.HS-ESS1-3

Most stars are made of which elements?

• Hydrogen only
• Hydrogen and Lithium
• Hydrogen and Sodium
• Hydrogen and Helium

Tags

NGSS.HS-ESS1-3

Stars, like our Sun, form from nebulae. How long ago did our Sun form?

• 4.6 million years ago

• 46 million years ago

• 4.6 billion years ago

• 46 billion years ago

Tags

NGSS.HS-ESS1-1

The group of outer planets are known as:

• The Terrestrial Planets
• The Gas Giants
• The Inner Planets
• The Rocky Planets

The theory that explains the formation of the solar system is called ____.

• Nebulis Theory
• Nebular Theory
• Big Bang Theory
• Big Nebulan Theory