Science questions to think about

1) Do all plants need carbon dioxide?

http://www.ftexploring.com/askdrg/askdrg6.html

2) Why is soil so important? How do we grow a healthier plant?

http://urbanext.illinois.edu/gpe/case2/c2facts3.html

3) Do coloured lights affect the rate of photosynthesis?

http://www.selah.k12.wa.us/soar/sciproj2000/AshleyE.html

http://www.ehow.com/how-does_5118128_color-light-effects-photosynthesis.html

http://www.succulent-plant.com/light.html