I WONDER - What Is A Star?

Stars are massive spheres of gas, mainly hydrogen and helium, that generate light and heat through nuclear reactions. In their cores, hydrogen atoms fuse to form helium, releasing significant energy as light and heat.

Describe the process that occurs in a star's core.

What is released when hydrogen atoms fuse to form helium?

• Sound energy

• Chemical energy

• A tremendous amount of energy

• Kinetic energy