1. Ionising radiation

2. What does this mean? Where would you see it?

3. Type of radiation What is it? Penetrating power (and what stops it) Relative speed Risk to body tissues

4. Uses of ionising radiation Smoke detectors Checking thickness of sheet metal in factory Sterilising syringes and medical supplies Uses

5. Non-ionising radiation Can cause skin cancer & damage cells in skin Heating effect Unknown effects from Wifi and mobile phones? Hazards

6. Some effects from Ionising radiation Damage cells & DNA causing mutations Cell death in high doses Damage to inside of body if taken internally – especially if integrated into body chemistry (e.g. iodine) Hazards Can you think of any more? Burns, internal bleeding

7. Plenary

8. Design an info-graphic for a BBC news article showing simply the differences between the particles and their relative penetrating powers.