Space Science

What celestial body eventually evolved into our modern solar system?

• a nebula
• a supernova
• a quasar
• a galaxy

Smaller particles (metal and rock) collecting together into larger and larger objects is called . . .

• accretion
• contraction
• explosion
• rotation

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 starts to collapse because of:

• A nearby star shining it's light
• A passing spaceship
• A passing comet
• Gravity

As a nebula collapses it also begins:

• Expand
• Rotate
• Shake
• Turn to ice

The group of inner planets are known as:

• The Terrestrial Planets
• The Gas Giants
• The Outer Planets
• The Hallow Planets

What caused the lighter elements to leave the terrestrial planets?

• Gravity from the Gas Giants
• Nothing, the lighter elements stayed
• Gravity from the Sun
• Heat from the Sun

The group of outer planets are known as:

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

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

• Gamma Rays
• Plasma
• Ice and Gas
• Rocks

Where in our solar system would you expect to find a planet that is mostly made of gas?

• very close to the sun

• outside of the sun's gravitational pull

• very far from the sun

• very close to other planets