Science: Age 16

8 illustrated Science lessons for Age 16.

Dye strength dims the light When light passes through a coloured solution, the dye absorbs part of it. The more concentrated the solution,…
A wave travelling along a rope A wave is a disturbance that moves through a medium, carrying energy without carrying the material along. Its …
Where Sunlight Goes on Earth About 30% of the sunlight reaching Earth is reflected straight back to space, mostly by bright clouds; this fr…
Measuring Earth with Shadows Eratosthenes compared the noon shadows in Syene and Alexandria on the summer solstice to estimate the size of …
Candle Image on an Optical Bench A lit candle stands on the left of a horizontal rail. A biconvex lens bends its light rays onto a white screen…
Two Sticks at Noon At noon, two upright sticks far apart can cast shadows of different lengths because Earth's surface is curved.…
Pulled Steel Ball on a Ramp A steel ball sits in a straight groove while a falling weight pulls it through a cord. The stretched spring an…
Earth's Energy Balance Solar radiation arrives as shortwave light, and Earth returns energy to space as infrared radiation. Greenhous…