Year 9 · Autumn First Half

Biology

3 lessons from 1 unit.

Unit B6 · lessons 1 to 3 of 3

A drug is any substance that changes the way the body works — which makes caffeine one, and paracetamol one, and that is a description rather than a judgement. This unit is about what these molecules actually do once they are in your blood, and how to tell a claim about them from evidence for it.

01What drugs do to the bodySystemCaffeine, paracetamol, nicotine and alcohol are all drugs. That is not a judgement about any of them — it is a description of what the molecules do once they are in your blood.Open this lesson
02Alcohol and smokingSystemTwo drugs that are legal for adults, sold openly, and between them responsible for more illness in this country than every illegal drug put together. Both are worth understanding as biology before anyone argues about them.Open this lesson
03Substance misuse and decisionsInvestigationNobody decides anything from a table of facts. They decide from what they have heard, from what they think everyone else is doing, and from claims that sound like evidence and are not. This lesson is about telling the difference.Open this lesson

Back to all three sciences this half term The whole KS3 Biology course