Formation of Stars

Stars are swirling balls made up of...

• fire and ash.

• plasma and liquid.

• gas and dust.

• fire and plasma.

A collection of gas and dust that can form a star is called a...

• Stellar Nebula.

• Planetary Nebula.

• Globular Cluster.

• Stellar Nursery.

How do stars form?

• through the sun
• when nebula collapses and nuclear fusion occurs
• through supernova
• Magic

What is the primary element that stars fuse early in their life cycle?

• Helium
• Dust
• Hydrogen
• Iron

Which of the following would be classified as the beginning of star formation?

• red dwarf
• main sequence
• protostar
• white dwarf

The life cycle of a star depends  on.

• mass
• luminosity
• radius
• temperature

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

A stellar nebula is made up of...

• clouds of gas

• clouds of gas and dust

• stars

• planets

Which nuclear process takes place in the core of stars, where hydrogen is joined to produce helium?

• fission

• fusion