Interactive rocks and soils lab http://www.bbc.co.uk/schools/scienceclips/ages/7_8/rocks_soils.shtml
Helping Plants Grow Well http://www.bbc.co.uk/schools/scienceclips/ages/7_8/plants_grow.shtml
This link has information about other schools that are also planting tulip bulbs http://www.learner.org/jnorth/
Interesting site to learn more about the earth's surface. You may want a grown up to help you explore this site. http://earthobservatory.nasa.gov/Observatory/
This site is an educational resource created by The PA Dept. of Agriculture in cooperation with The PA Dept. of Education. http://www.marketplaceforthemind.com