Osmosis, Changing Pressure, Flexing Small Muscle
Slim View, Finger Feedback, Thunder Rumbles, Heat Waves
Emergency Light, Reversing Flag, Waterfall Effect
These experiments are from Robert Krampf - The Happy Scientist
231 - Osmosis - Water tends to
move towards higher concentrations of dissolved chemicals. That means that
if the water outside the cell is saltier than the water inside, water will
move from the inside of the cell to the outside.
232 - Changing Pressure - Cause a change in air pressure by heating and cooling it.
233 - Flexing Small Muscles - This experiment deals with goosebumps, also known as chill bumps.
234 - Slim View - Reading a page of writing through a thin opening. Viewing dark spaces on your television.
235 - Finger Feedback - Biofeedback, relaxation and body temperature.
236 - Thunder Rumbles - Judging the distance of lightning and examining the reasons behind the different volumes and lengths of thunder rumbles.
237 - Heat Waves? - As light moves from more dense, room temperature
air to less dense, hot air, it changes speed and is bent, just as it
would be by a lens. The rising air does not form a smooth, bent surface as
it rises...
238 - Emergency Light - Make an emergency light (candle) out of vegetable oil and a paper towel.
239 - Reversing Flag - Seeing reverse afterimage colors.
240 - Waterfall Effect - Optical illusions caused by the brain's 'motion detectors'.
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