Nebular Theory and Life Cycle of Stars Quiz

What is a nebula?

• A cloud of dust and ice
• A cloud of ice and gas
• A cloud of dust and gas
• A star in space

After a supernova explosion, there are two things that the remains of the supernova can turn into. What are the two things?

• Planetary Nebula and Red Supergiant
• Black Hole and Neutron Star
• White Dwarf and Neutron Star
• Black Hole and Red Supergiant

The last stage of the sun's life will be...

• Red supergiant
• Red giant
• Supernova
• White Dwarf

When a red giant loses fuel, it becomes a.....

• White Dwarf
• Neutron Star
• Planetary Nebula
• Red Supergiant

The stars with the hottest temperatures are what color?

• Red
• Yellow
• Blue
• Orange

What formed in the solar system first, Gas Giants or Rocky Planets?

• Gas Giants
• Rocky Planets

What happens when the nebula starts to spin faster? Think of what is happening when gravity is pulling inward, but the spinning force is flinging outward.

• The nebula will explode.
• The spinning cuases the nebula to start to flatten.
• Rocky and metal particles start sticking together in the inner solar system as it cools.

What is occurring in this step?

• In the outer solar system where it is cooler, the gases and ice can stick together.
• The nebula flattens into a disk. The sun is starting to form.
• The rocky planets and gas giants begin forming.
• It is a cloud of gas and dust spinning and particles are colliding.

What is happening in this step?

• The sun starts fusion.
• It begins taking disk shape.
• A nebula is formed.
• Gravity causes the cloud to shrink. Particles colliding cause the cloud to heat up

Icy particles stick together in the outer solar system where it is cold. This phase is called.....

• Accreting
• Flattening
• Condensing
• Contracting and heating up