Concept of convection demonstrated through the heating of oil.

Hot plate, beaker with oil, dyed Kimwipes.

Preheat the hot plate to 450 Degrees Celsius With a green Sharpie, color a portion of Kimwipes, and then cut this portion into small squares (app. 1cm squares). Pour 500mL of oil into the beaker and place the tissue squares into the oil, making sure they become submerged. Place the beaker on the hot plate and demonstrate how the oil rises in the middle and falls on the sides of the beaker (takes about a minute for the effect to begin). This demo can be projected on the Doc Cam by pivoting the camera arm horizontally, inverting the image 180 degrees and holding a piece of white paper in the background. Updated on: 06/13/13