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What is alcohol an example of?

Health 01

Health in KS3 Science explores how our bodies work, how to stay fit, and the role of nutrition, exercise, and hygiene in keeping us healthy every day.

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Fascinating Fact:

The human body has more bacteria living inside it than there are human cells.

In KS3 Science, pupils learn how the human body functions and what affects health. Lessons cover diet, lifestyle, diseases, and the importance of looking after physical and mental wellbeing.

Key Terms

Nutrients: Substances in food that provide energy and materials for growth and repair.
Immune system: The body’s defence against infections and harmful microbes.
Hygiene: Actions like washing hands and brushing teeth that help prevent illness.

Frequently Asked Questions (Click to see answers)

What are the main factors that affect human health?

Health is affected by diet, exercise, sleep, hygiene, genetics, and the environment. Lifestyle choices play a big role in staying healthy.

Why is a balanced diet important in KS3 Science?

A balanced diet provides the right mix of nutrients for energy, growth, and repair. Without it, the body can become weak or prone to illness.

How does exercise keep the body healthy?

Exercise strengthens muscles, improves heart and lung function, boosts mood, and helps control weight. Regular activity is key for long-term health.

Try These Related Quizzes

1 .

Which one of the following is NOT an effect of inhaling solvent fumes?

Makes you have hallucinations

Makes you hyperactive

Makes you light headed

Makes you sleepy

Solvents, like alcohol, are depressants and slow down the messages passing between your nerve cells

2 .

Which two of the following organs can be damaged by drinking too much alcohol?

Brain and heart

Brain and liver

Liver and pancreas

Stomach and kidney

Alcohol kills brain cells and causes a disease called cirrhosis of the liver. Both of these prevent these important organs from working correctly

3 .

Which poisonous gas is present in smoker's smoke?

Carbon dioxide

Carbon monoxide

Hydrogen

Sulfur dioxide

Tobacco smoke also contains nicotine, an addictive drug as well as tar and loads of other chemicals that should not be inside the body

4 .

Ecstasy is an example of:

An antidepressant

A pain killer

A stimulant

An antihistamine

Ecstasy is an addictive drug that is also hallucinogenic. It can lead to depression, anxiety, memory loss and insomnia. There have also been cases of people dying after taking ecstasy

5 .

Which of the following organs is MOST damaged by smoking?

Brain

Heart

Liver

Lungs

The respiratory system is the first point of contact with the smoke

6 .

Which of the following can be caused by alcohol?

Brain damage

Bronchitis

Emphysema

Lung cancer

Even small amounts of alcohol can kill off brain cells. Drinking more than the recommended maximum amount of alcohol regularly can lead to memory problems as the brain cells die

7 .

Which of the following is caused by smoking?

Lung cancer

Bronchitis

Emphysema

All of the above

The chemicals from smoking get into your bloodstream and can affect the health of virtually any organ in the body

8 .

Which one of the following is NOT involved in solvent abuse?

Glue

Paint

Vodka

White spirit

Inhaling solvents can permanently damage organs such as the brain and lungs

9 .

Alcohol is an example of:

A depressant

A pain killer

A stimulant

An hallucinogen

A depressant slows down brain function and affects the way your nerves communicate messages through your body. That is why people who have consumed a large quantity of alcohol have slurred speech, cannot think properly and fall over as the nervous system can no longer function properly

10 .

Passive smoking is:

Breathing in smoke that others exhale

Only smoking occassionally

Smoking quietly

Smoking without inhaling smoke

This can be just as harmful as inhaling smoke directly from a cigarette, cigar etc. Possibly worse as it has not passed through any kind of filter

You can find more about this topic by visiting BBC Bitesize - Health and disease

Author: Sue Davison (Chemistry Specialist & KS3 Science Teacher, Quiz Writer)