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Cucumbers contain little or no carbohydrates.

Food 01

Food provides the energy and nutrients our bodies need to live and grow. In KS3 Science, pupils explore balanced diets, food groups, and the importance of nutrition.

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Fascinating Fact:

Carrots do not really help you see in the dark, that was a World War II myth to cover up the use of radar.

In KS3 Science, pupils study food and nutrition to understand how different food groups support the body. Learning about energy, vitamins, and minerals helps explain why balance is important.

Key Terms

Nutrients: Substances in food that help the body grow, repair, and stay healthy.
Balanced Diet: Eating the right amount of different foods to provide all essential nutrients.
Energy: The fuel from food that powers body processes like movement, growth, and repair.

Frequently Asked Questions (Click to see answers)

What are the main food groups in KS3 Science?

The main food groups are carbohydrates, proteins, fats, vitamins, minerals, fibre, and water, each with different roles in keeping the body healthy.

Why is a balanced diet important?

A balanced diet is important because it provides the right mix of nutrients, helping the body grow, repair tissues, and stay strong against illness.

Do carrots really help you see in the dark?

Carrots contain vitamin A, which supports healthy eyesight, but they do not make you see in the dark. The idea was a World War II myth.

Try These Related Quizzes

1 .

What are proteins used for?

Bones and teeth

Energy

Growth and repair

Healthy blood

Proteins are long chains of different amino acids

2 .

What are carbohydrates used for?

Bones and teeth

Energy

Growth and repair

Healthy blood

They provide energy through respiration

3 .

What are fats in our diet mainly used for?

Bones and teeth

Growth and repair

Healthy blood

Stored energy

As well as stored energy, they provide insulation

4 .

What are small amounts of vitamins needed for?

Bones and teeth

Chemical reactions in the body

Digestion

Respiration only

If your chemical reactions don't work properly all sorts of things can start to go wrong with your body

5 .

Iron, a mineral, is needed for what?

Bones and teeth

Cell chemistry

Energy

Healthy blood

Calcium, also a mineral, is needed for bones and teeth

6 .

Fibre is needed for what?

Cell chemistry

Energy

Healthy blood

Preventing constipation

It also helps prevent bowel cancer

7 .

Which of the following foods contain little or no protein?

Beans

Butter

Fish

Meat

Butter contains mainly fat

8 .

Which of the following foods contain little or no carbohydrates?

Bread

Cucumber

Pasta

Potatoes

A cucumber is a good source of vitamins and minerals

9 .

Which of the following foods contain little or no fibre?

Apples

Carrots

Cheese

Peas

Fresh fruit and vegetables contain vitamins and fibre

10 .

Which of the following contains most calcium?

Cheddar cheese

Green vegetables

Meat

Oranges

Milk-based products are a good source of calcium

You can find more about this topic by visiting BBC Bitesize - Nutrition, digestion and excretion

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

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