Home of real teaching & learning
  • Full support for teachers
  • Focus on critical thinking
  • Engaging classroom activities
  • Integrated student eBook
  • Assessed tasks / qBank
  • Practice exam questions

The InThinking Guarantee: Our sites are written by expert practitioners and not by AI

See our AI policy

Disclaimer: InThinking subject sites are neither endorsed by nor connected with the International Baccalaureate Organisation.

Don't miss out, find out!

E5 Fusion and stars

Fusion is the joining of two small nuclei, and is the process that powers stars like our sun. Humans have gazed up at the stars since prehistoric times. In recent times, physicists have developed a new story about the origins, evolution, and properties of stars. How can we deploy our knowledge... Work through the multiple-choice questions on this page to practice your understanding of fusion and stars. Your teacher...

Help