Hello, young learners! Welcome back to Primary 3 Basic Science & Technology. In our previous lesson, we learned about AIR – Air in Motion. Today, we’re going to learn about the harmful effects of air.
Objectives
By the end of this lesson, you should be able to: * Describe the effects of air on our bodies. * List two harmful substances that can be taken into the body through the air. * List two destructive effects of air in nature.
Harmful Effects of Air
Air is essential for breathing, but it can also have harmful effects on our health and the environment.
What are the effects of air on our bodies?
Polluted air can carry harmful substances that can cause diseases like the flu and COVID-19. These substances can also cause respiratory problems and even death.
What are some harmful substances in the air?
Some of the harmful substances found in the air include: * Smoke * Dust * Toxic fumes
What are some destructive effects of air in nature?
Air can cause natural disasters such as: * Hurricanes * Tornadoes * Whirlwinds
Evaluation Questions
Now that you’ve learned about the harmful effects of air, let’s see if you can answer these questions:
- Why is air important for breathing?
- Name two airborne diseases.
- Can you mention two harmful substances found in the air?
- Give examples of natural disasters caused by air.
- How can we reduce air pollution in our environment?
Conclusion
We learned that while air is essential for life, it can also have harmful effects on our bodies and the environment. It’s important to be aware of these effects and take steps to protect ourselves and our planet. Don’t forget to check the comments section if you have any questions, and use the navigation to move to the next lesson. See you in the next lesson!
