Environmental Pollution
Environmental pollution is when harmful things get into the air, water, or soil and cause damage.
A drop of food coloring falls into a bowl of clean water. The color spreads out and mixes through the whole bowl. You cannot pull the color back out once it spreads. The clean water is now stained and changed.
Explaining environmental pollution by grade level
When oil spills into the sea, it hurts fish and birds. The oil floats on top of the water. It makes the water dirty and hard to live in. People use special pads to soak up the oil and make the water clean again.
Projects that explore environmental pollution
Environmental pollution is when harmful things get into the air, water, or soil and cause damage. Oil spills put harmful oil into the water, and cleaning them up is not simple. This project tests whether adding detergent changes how well polypropylene pads soak up oil from polluted water.
When harmful substances get into rain, the polluted water falls on soil and damages living things. Acid rain is a form of environmental pollution where the rain itself becomes acidic enough to stop plants from growing. This project shows that sunflower seeds watered at pH 3 and pH 2 never sprout at all, revealing how polluted rain causes real damage.
When harmful chemicals like pesticides get into the environment, they cause damage to living things. Malathion is a pesticide that kills flies within 30 minutes, showing how dangerous these pollutants can be. This project tests whether activated carbon can neutralize that harmful substance and protect the flies from its deadly effects.