Man’s Impact on the Environment (Primary 6 Science)

Have you ever wondered…

• Why our skies sometimes look hazy?
• Why some animals are losing their homes?
• Why Singapore plants so many trees along the roads?

👉 The answer lies in Man’s Impact on the Environment!
Everything humans do affects the Earth – sometimes in good ways, sometimes in harmful ways. Let’s learn both sides.

✅ Positive Impacts (Good for the Environment)

Not all human actions are harmful. Some protect nature and help living things survive.

1. Conservation – Protecting animals and their homes
   • Example: Wildlife reserves, banning hunting of endangered animals.
2. Reforestation – Planting new trees to replace those cut down
   • Example: Singapore’s tree-planting campaigns, mangrove restoration.

❌ Negative Impacts (Harmful to the Environment)

Sadly, many actions by humans damage nature.

1. Deforestation – Cutting down forests
   • Destroys habitats of animals
   • Reduces oxygen production
2. Pollution – Making the air, land, and water dirty
   • Air: Smoke from factories and vehicles
   • Water: Plastic waste in the sea
   • Land: Rubbish and chemicals dumped on soil
3. Depleting Natural Resources – Using up too much of what Earth provides
   • Example: Overfishing, mining, wasting water
4. Global Warming – Earth getting hotter because of greenhouse gases (like carbon dioxide)
   • Causes ice to melt, sea levels to rise, and weather to become extreme

🤔 Why Does This Matter?

When the environment is harmed, humans also suffer.

• Less clean air to breathe
• Fewer animals and plants
• Extreme weather (floods, heatwaves)
• Rising sea levels

But there’s hope! By learning about these impacts, we can make better choices – like recycling, saving energy, and planting more trees.

🌱 What Can We Do?

Even small actions make a BIG difference!

• Recycle and reuse
• Save water and electricity
• Plant more trees
• Reduce plastic use

Quick Recap

• Positive impacts: Conservation, Reforestation
• Negative impacts: Deforestation, Pollution, Resource depletion, Global warming

Our choices today shape Earth’s tomorrow!

Ready to practise?

👉 Click here to download the FREE Man’s Impact on the Environment Worksheet and test yourself!