SvS Biology and Junior Science
When light passes through
different media, it
often changes speed and direction. This is a principle known
as REFRACTION. The prisms you have used in class are an example
of this.
Open a word document, and then
name it with your first name, saving it in the SHARE drive
in the Student Data folder in one called VAN STRIEN, then FORENSICS.
In your document, you will use the
Internet to answer the following questions, making sure that
you cite each source (URL) of reference after each response that you construct.
You should
cut and paste the questions into the document to assist you. Bookmark this page
if need be. Some URLs have been linked in for you (underlined text)
1. In class we investigated
substances under a blacklight.
How does a black-light work and what types of things
can be seen differently under a blacklight?
http://www.howstuffworks.com/question59.htm
2. Rainbows are caused by refraction. What really causes
a rainbow and what is refraction?
http://www.howstuffworks.com/question41.htm
3. What is a refractive index and why does
light bend when it enters or leaves
glass?
http://library.thinkquest.org/22915
4. How might knowledge of refraction assist
forensic science investigations?
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S. van Strien