Question: Is space exploration worth the money?
End Product: Make a satellite and discuss the advantages and disadvantages of space exploration.
UV RaysObjectives - To understand the dangers of UV rays
- To understand how the Sun's behaviour affects Earth
- To know what comets and asteroids are and how comets orbit
- To know some uses of artificial satellites and how gravity affects them
- To understand how stars evolve and to know evidence for the Big Bang
Timing - Up to 14 lessons
Go to http://www.hpa.org.uk/radiation/understand/at_a_glance/index.htm - "Sunsense" animation, http://www.hpa.org.uk/radiation/publications/educational/posters/uv_poster.pdf, http://www.gcse.com/waves/ultraviolet.htm, www.bbc.co.uk or www.skoool.co.uk - waves 2 and read about ultraviolet waves - where do they come from, what are they used for and what are the dangers?
Now go to the following websites to answer these questions:
What happens to your skin when it burns?
Why are fair-skinned people more prone to skin cancer than darker-skinned people?
What does "SPF" mean? (Not just what does it stand for).
How does sun protection cream work?
What role does the ozone layer plays in the amount of UV rays that reach Earth?
What is happening to the ozone layer and why?
http://www.cancerhelp.org.uk/help/default.asp?page=3007, http://www.netdoctor.co.uk/travel/diseases/safe_in_the_sun.htm
http://health.howstuffworks.com/sunscreen.htm
http://www.bbc.co.uk/science/hottopics/sunshine/
http://www.epa.gov/sunwise/kids.html
http://www.ace.mmu.ac.uk/kids/ozonehole.html
Have a go at the two crosswords on: http://www.epa.gov/ozone/puzzles/index.html.