Unit 4 Formation of the solar system

The Nebular Theory is:

• A theory on how the Milky Way galaxy was formed
• A theory on how the universe was formed
• A theory on how the solar system will be destroyed
• A theory on how the solar system was formed

A nebula is:

• A cloud of ice
• A cloud of dust and gas
• A cloud of just gas
• A cloud of just dust

What is the most abundant gases in a nebula or our solar system?

• Hydrogen & Oxygen

• Nitrogen & Oxygen

• Hydrogen & Helium

• Oxygen & Helium

As a nebula collapses it also begins:

• Expand
• Rotate
• Shake
• Turn to ice

Tags

NGSS.MS-ESS1-2

NGSS.MS-PS2-4

What forms in the very center of the early solar system disk?

• A protostar

• A planet

• A protoplanet

• A planetesimal

What formed in the early solar system disk away from the center?

• Light

• Protostars

• Planetesimals

• Hydrogen

inner planets are known as:

• Terrestrial Planets

• Gas Giants

• solid Planets

• Hallow Planets

Heat and intense pressure in the early sun caused:

• Fire in the Sun to start

• Helium to break down into Hydrogen

• Nuclear Fusion to start

• Nuclear Fusion to end

What materials could not survive the heat and the solar winds where the rocky planets were formed?

• Gamma Rays

• Plasma

• Ice and Gas

• Rocks

What two objects do scientists study to learn about the formation of the solar system?

• Stars & Star systems

• Comets & Asteroids

• Comets & Meteoroids

• Asteroids & Distant Stars