With webcams becoming standard on laptops, users should be aware of related privacy and security issues. Webcams can potentially be remotely activated by hackers to spy on users without their consent. Basic precautions like covering the webcam lens when not in use and keeping software up to date can help prevent unauthorized access. Users should also consider the location of their laptop and potential visibility through a webcam to avoid being seen or recorded without permission.

1. My Laptop Has a Webcam, So Now What?
Jim Peterson
Holland Christian High School
MACUL 2010
March 11, 2010
jimp@hollandchristian.org
@weathertation
weathertation.posterous.com

4. Magnesium and Oxygen
When I held the magnesium over the fire, it lit up and
The Magnesium is all by itself, and oxygen has two.
was a very bright light.
They combine with each other. So there is two Oxygen
and one magnesium. But the magnesium needs another one
so they end up looking like magnesium oxide.
2 Mg + O2 ----> 2 MgO

5. If your hair is on fire, wrap the blanket around your head!

8. Sarah and Abby
Test Tube
Brush
Stick the test tube brush into
the test tube to clean the tube.

21. Chris Lehmann, Principal of the Science
Leadership Academy in Philadelphia, notes
that, “technology in schools should be like
oxygen: ubiquitous, necessary, and
invisible.”

22. My Laptop Has a Webcam, So Now What?
Jim Peterson
Holland Christian High School
MACUL 2010
March 11, 2010
jimp@hollandchristian.org
@weathertation
weathertation.posterous.com