Earth science! best science projects.

Air-our amazing atmosphere: Oxygen from photosynthesis -- Melting ice -- Particles in the air -- Removing dust from air -- Greenhouse effect and global warming -- Water-the liquid of life: Cycle of water -- Purifying water -- Exploring acid rain -- Blooming algae -- Plants and salty water -- Soil-pieces of earth: Layers and types of soil -- Recipe for soil -- Acidity of soil -- Erosion-here today and gone tomorrow -- Pollution-problems of waste -- Oil spills-a messy problem -- Plants and air pollutants -- Plants and acid rain -- Effect of acid rain on materials -- Weather and air quality -- Energy resources-renewable and sustainable: Sun power -- Electricity from sunlight -- Electricity from wind -- Heat from decaying grass clippings -- Further reading -- Internet addresses -- Index