http://staffweb.psdschools.org/chan10/podcasts Thu, 23 Apr 2009 21:25:04 GMT Cameras and our eyes normally see the world as it appears in visible light. But our world is also made up of a kind of ŌlightÕ that we canÕt see yet it is still there. http://staffweb.psdschools.org/chan10/podcasts/./media/seeingred.m4v Thu, 23 Apr 2009 22:15:33 GMT BrianÕs infrared guns are really thermometers- they measure the heat or INFRARED energy that an object gives off. http://staffweb.psdschools.org/chan10/podcasts/./media/infraredroundup.m4v Thu, 23 Apr 2009 22:15:33 GMT Crank them up and watch them go! If we crank up (put energy IN) to the wheels of these toy cars, the wheels spin (another kind of energy) and the cars travel a certain distance. http://staffweb.psdschools.org/chan10/podcasts/./media/energyinenergyout.mp4 Thu, 23 Apr 2009 22:15:33 GMT What makes wiffle balls curve and sail while baseballs fly fast and straight? The mass or weight of the ball affects the flying objectÕs INERTIA. http://staffweb.psdschools.org/chan10/podcasts/./media/airballs.mp4 Thu, 23 Apr 2009 22:15:33 GMT