1. Teacher notes
This activity, summarising the three types of radiation, could be used to introduce the topic of radiation, as a plenary exercise or as a revision exercise.

2. Teacher notes
This virtual experiment illustrates the penetrating power of the three different types of radiation.
It could be highlighted that the GM tube, when switched on, is not at zero. This is because it is reading a small amount of background radiation.
It should also be made clear to the students that they should not put their hands in front of any known radiation source, and that the hand in the experiment is only for illustrative purposes.

3. Teacher notes
This activity on the effect of a magnetic field on the three types of radiation could be used as a plenary or revision exercise.

4. Teacher notes
This matching activity could be used as a plenary exercise on the penetrating power of radiation. Students could be asked to complete the activity in their books or on mini-whiteboards. The activity could be concluded by completion on the IWB.

5. Teacher notes
This matching activity could be used as a plenary exercise on the range in air of the three types of radiation. Students could be asked to complete the activity in their books or on mini-whiteboards. The activity could be concluded by completion on the IWB.