Bitesize has changed! We're updating subjects as fast as we can. Visit our new site to find Bitesize guides and clips - and tell us what you think!

Science

Radiation for life

Radiation treatment - higher tier - Test

1.

A radioactive tracer must emit either:

2.

What stops gamma rays?

3.

X-rays are similar to gamma rays in that they're both:

4.

Which type of nuclear radiation is used to treat cancer deep inside the body?

5.

Why is more than one beam of gamma rays used to treat tumours?