Meaning and Examples of Harmful Substances

Welcome to class!

In today’s class, we’re going to be talking about the meaning and examples of harmful substances. I trust you will enjoy the class!

Meaning and Examples of Harmful Substances

Meaning and Examples of Harmful Substances

Hello, bright students! Today we’re going to learn about harmful substances. These are things that are not good for our bodies and can make us feel very sick.

What Are Harmful Substances?

Harmful substances are things that can hurt our bodies or make us ill if we eat, drink, or touch them. They are not safe for us and we should always stay away from them.

 Examples of Harmful Substances

– Stale Foods: Food that has been left out for too long and is no longer fresh.

– Poorly Cooked Foods: Food that has not been cooked properly and can have germs.

– Rotten Foods: Food that has gone bad and has a terrible smell.

– Infested Foods: Food that has insects or worms in it.

– Expired Foods: Food that is past its ‘best before’ date and is not safe to eat.

– Expired Drugs: Medicines that are too old and can no longer help us.

– Unripe Fruits: Fruits that are not ready to eat and can upset our stomachs.

– Impure Water: Water that is not clean and can have tiny germs we cannot see.

 How to Stay Safe

– Always eat food that is fresh and well-cooked.

– Check the dates on food and medicine to make sure they are not expired.

– Only take medicine that your doctor or parents give you.

– Drink water that is clean and safe.


It’s important to know about harmful substances so we can stay healthy and happy. Always remember to check if something is safe before you eat, drink, or touch it!

We have come to the end of today’s class. I hope you enjoyed the class!

In case you require further assistance or have any questions, feel free to ask in the comment section below, and trust us to respond as soon as possible. Cheers!

Question Time:

  1. What are harmful substances?
  2. Can you give two examples of harmful substances?
  3. Why should we not eat or drink harmful substances?
  4. What should you do if you find something that might be a harmful substance?
  5. How can checking the ‘best before’ date help us avoid harmful substances?
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