- Find new uses for recycled grocery bags.
- Create your own greenhouse.
- Make acid rain--safely!--to see how it affect plants.
- Test organic food against foods grown with chemicals.
- Make your own compost pile.
- Re-create deforestation with the soil from timbered trees.
- Test your sensitivity to noise.
Whether you are in the classroom, surfing the Internet, or just hanging out with your friends, you can make a difference. Start today--so our Earth can live another 4.5 billion years!