1 Universe, p. 390, Freedman and Company, Freedman and Kaufmann, 2002
2 Paraphrased from http://www.bbc.co.uk/science/space/solar system/
3 Paraphrased from Eyewitness Visual Dictionaries: The Visual Dictionary of the Universe, Sue Becklake, DK Publishing, 1993
4 Paraphrased from Universe, Freedman and Kaufmann, Freedman and Company, 2002
5 Paraphrased from http://hesperia.gsfc.nasa.gov/sftheory/flare.htm
6 Paraphrased from www.spacweathercennter.org
7 Paraphrased from http://www.knowledge-finder.com/technology/satellite-tv/artificial- satellites-types.html
8 Paraphrased from http://www.knowledge-finder.com/technology/satellite-tv/artificial- satellites-types.html
9 Paraphrased from http://www.ips.gov.au/Educational/1/3/12
10 Paraphrased from http://www.ftexploring.com/photosyn/photosynth.html
11 Paraphrased from http://observe.arc.nasa.gov/nasa/earth/hydrocycle/hydro2.html
12 http://library.thinkquest.org/15215/Friend/temperature.html
13 Paraphrased from http://library.thinkquest.org/15215/Friend/temperature.html
14 Paraphrased from http://members.aol.com/physgeo4/sr2_28.htm
15 http://www.bom.gov.au/lam/weathed.shtml#whatca
16 Paraphrased from http://www.epa.gov/globalwarming/kids/climateweather.html
17 Paraphrased from http://www.weatherquestions.com/How_do_clouds_form.htm
18 Paraphrased from http://mbgnet.mobot.org/salt/cycle/clouds.htm
19 http://www.weatherquestions.com/What_causes_lightning.htm
20 Paraphrased from www.weatherquestions.com/What_causes_thunderstorms.htm
21 http://hurricanes.noaa.gov/
22 Paraphrased from http://ww2010.atmos.uiuc.edu/(Gh)/guides/mtr/hurr/home.rxml
23 Paraphrased from http://www.pueblo.gsa.gov/cic_text/health/sun_uv/sun-uv-you.htm
24 Paraphrased from http://www.drrisley.com/html/Vitamin%20D.html
