Mechanical Waves

This week we explored mechanical waves in detail. There is much more to learn and I'm sure you have more questions. Please go to the websites to the left and enrich your minds. I encourage you to watch the videos in "How Stuff Works". Type in Sound or Mechanical Waves and it will lead you to a host of videos. Also check out the discovery channel on TV or Time Warp interative videos for more fun. Have a safe winter break and enjoy the holidays.

Extra Credit Opportunity!

Your assignment is to conduct a search for information about infrasonic waves and ultrasonic waves. Using a computer and/or other resources provided by the web, answer TWO the following questions:

o What is a natural source of infrasonic waves and how can these waves affect the

environment?
o How are infrasonic waves used for communication or entertainment by animals or humans?
o How can ultrasound waves be used to help doctors diagnose health problems or observe

other medical conditions inside of humans?
o Which animals use ultrasound waves, and how do they use these waves?

You have until winter break is over. Have a safe break!

Wave Energy (Dec 8- Dec 12)

This week we explored how waves are related to energy. Waves are a very important part of your life. Cooking your food, watching the television, predicting the weather, or calling a friend on your cell are just a few examples of how you use waves each day. Please check out "how stuffworks.com" (to the left) and under the search engine type the word "Light". You will be able to see videos, pictures, and written explanations that will further your understanding of what we talked about in class this week.
Keep your journals updated and don't lose your focus as the holidays approach. If you want to look ahead, our next topic will be "Mechanical Waves". Feel free to explore the web and find what you can. Have a great weekend

Question for the Week: If a tree were to fall in a forest, and no one was around, would it make a sound? Be able to back your answer up with scientific evidence.

Waves/Videos

This week we finished our study guides, and took our unit test on heat. How did you do? The next unit is Waves and Energy. Go to discovery channel.com and check out the show Time Warp. It has interactive videos that allow you to see energy waves passing through substances. If you can't watch it on your computer, check it on Wednesday nights at 8pm or on the weekends in the afternoon on Discovery Channel. Great show to extend what we are learning. have a great weekend.
Mr C