https://www.brainpop.com/health/personalhealth/sunprotection/https://www.brainpop.com/health/personalhealth/sunprotection/In this lab modular from Nano-Link:
http://www.nano-link.org/component/docman/cat_view/2-nanotechnology-curriculum/14-nano-link-modules/23-nanoparticles-and-sunscreenles/23-nanoparticles-and-sunscreen
We first watched a Brainpop video on Sun protection:
http://https://www.brainpop.com/health/personalhealth/sunprotection/
We also watched:
The students learned how nanoparticles can be used in sunscreen to protect people from UV radiation. They compared regular sunscreen, no sunscreen and nano sunscreen using photochomatic paper and looking at exposure of pennies. This worked will with Grade 6 who already learned about the Electromagenetic Spectrum. We also worked well with Grade 7 Body Systems we learned about the skin and Grade 8 Environmental Unit on Exposure to toxins. Part one of this lab worked well in having students see what exposure time meant with a visible example and how different sources can result in different results for the same exposure time. We also discussed difference in light sources from indirect sunlight in our window to florescent bulbs.
In Part 2 the student liked being outside and also developing the photo papers. Students understood both the differences between nanoscreens and regular sunscreens in how they work using the power point of this unit, What UV Effects are on our health, how sunscreens work and what SPF Means. I think this was a great lab since our students can see its applications easily in their lives. We also discussed the cons of utilizing this sunscreen, if the nanoparticles penetrate into their blood stream, what happens to fish etc.. when they are washed off in the water. We also discussed that there has been an increase in Fish Skin Cancers and due to ozone depletion and what this could mean for us too. We also discussed as consumers how we complete a risk analysis of if we should utilize a new product. The students were also amazed about how level of SPF matters when looking at exposure. We also saw:
This is a great video to make people want to wear sunscreen! We also talked about skin color and skin cancer and sunburns using this link:
http://www.skincancer.org/prevention/skin-cancer-and-skin-of-color
