Page 137 - Knowledge Organiser Yr8 24-25

Knowledge Base: Science 8.6 Health Year 8
5. Drugs
5.1
What is a drug?
A chemical substance that affect the way the body functions.
5.2
Drugs can be categorised into two groups. What are the two groups?
Medicinal (to benefit health) and recreational (used for enjoyment, relaxing or to stay awake).
5.3
Name two examples of legal recreational drugs
Alcohol (ethanol) and tobacco.
5.4
What causes addiction to a drug?
When the body becomes dependent on the drug.
5.5
What may happen is a person with a drug addiction tries to stop taking drugs?
They may experience withdrawal symptoms like headaches, anxiety or sweating.
4. Alcohol
4.1 What is the name of the drug found in alcohol? Ethanol.
4.2 How does the drug in alcohol travel to the brain? Through the bloodstream.
4.3
What effect does the drug in alcohol have on the body?
Acts as a depressant, slowing down the body’s responses.
4.4
Name four short term effects of alcohol on the body
Sleepiness, loss of balance and muscle control, blurred vision , slurred speech, vomiting.
4.5
What is an alcoholic?
Someone who is addicted to alcohol.
4.6
What diseases can be caused from drinking too much alcohol?
Stomach ulcers, heart disease, brain damage, liver damage.
6. Pregnancy
6.1
What are the potential consequences of smoking during pregnancy?
Increased risk of miscarriage, low- birth-weight babies, sudden-infant- death syndrome.
6.2
What are the potential consequences of drinking alcohol during pregnancy?
Can damage the developing organs and nervous system of the foetus, can lead to foetal alcohol syndrome.
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