Stars Review Quizizz

A big cloud of dust and gas where all stars begin their life cycle is called....

• ASolar System

• A Galaxy

• A Nebula

• Universe

Stars are mostly made of which two elements?

• hydrogen and helium

• hydrogen and oxygen

• Nitrogen and helium

• helium and oxygen

Which is the stage where a high mass star explodes and releases a lot of energy?

• Red Supergiant

• Supernova

• Black Hole

• Main sequence

What happens during the What happens during the Main Sequence phase of a star?

• Helium is fused into heavy elements

• The star explodes

• Hydrogen fuses into helium

• The star is born out of dust and gas

In about 5 billion years, our sun will grow 100 times its size into its next stage called a...

• supernova

• neutron star

• white dwarf

• red giant

what color are the hottest stars?

• Blue

• Yellow

• Red

• Orange

Which process takes place in stars which combine lighter elements into heavier ones?

• nuclear fission

• atomic fission

• nuclear fusion

• nuclear blending

Which of the following is the correct order of the life cycle of our star the Sun?

• main sequence, red giant, white dwarf

• main sequence, white dwarf, red giant

• white dwarf, main sequence, red giant

• main sequence, red giant, supernova

An early stage in the formation of a star before nuclear fusion begins is called....

• protostart

• supernova

• neutron star

• black hole

When a star runs out of hydrogen to fuse, what element must then be fused in order to form a Red Giant?

• Lithium

• Iron

• Oxygen

• Helium