Term 2

Welcome back! Today we will be looking at some competition stuff from last term, and starting on a new topic - energy.

1. Briefly describe two types of factors that could cause enivronmental change - http://library.thinkquest.org/CR0210243/Science%20Station/How%20living%20things%20interact%20with%20their%20environment/relationship%20of%20biotic%20and%20abiotic%20factors.htm
2. What do populations (not individuals) need to help them survive? - http://evolution.berkeley.edu/evolibrary/news/101201_panthers
3. How can climate change affect the distribution of organisms? Use one example from this site - http://www.nhm.ac.uk/nature-online/environmental-change/measuring-climate-change/species-distribution/index.html
4. What does biomass mean? (Remember that we're not talking about renewable fuels, just ecosystems) - http://www.answers.com/topic/biomass 
5. What level in a biomass pyramid is usually the biggest? - http://cleangreenenergyzone.com/pyramid-of-biomass/
6. Draw a biomass pyramid for the grass - vole - barnowl food chain - http://www.bbc.co.uk/schools/gcsebitesize/science/edexcel_pre_2011/environment/populationsandpyramidsrev2.shtml
7. Try these once youre done -  http://science.discovery.com/interactives/literacy/darwin/darwin.html , http://teacher.scholastic.com/activities/explorer/ecosystems/be_an_explorer/map/form.htm#