Star

Stars are massive balls of hot gases held together by gravity. They produce energy through nuclear reactions, where atoms fuse to form heavier elements. Our sun is the closest star to Earth.

What holds a star together?

• Electromagnetic forces

• Dark matter

• Magnetic fields

• Its own gravity

What is the primary composition of stars?

• Extremely hot gases

• Cold ice

• Liquid water

• Solid rock

How do stars produce energy?

• By burning fossil fuels

• Through chemical reactions

• Via nuclear reactions

• By absorbing light

What happens during the nuclear reactions in stars?

• Atoms split into smaller elements

• Atoms fuse to form heavier elements

• Atoms lose electrons

• Atoms remain unchanged

Which star is closest to Earth?

• Alpha Centauri

• Betelgeuse

• Sirius

• The Sun