Measure Tall Things. Using the Sun you can measure the height of VERY TALL THINGS - anything that casts a shadow, like tall buildings, with nothing but a ruler and your mind! (OK, maybe with a calculator, too). Click here to find out how!

Track the Sun Measure the angle of the Sun above the horizon, and see how it changes with the seasons. Click here to find out how!

Show the Seasons Use Local Climatological Data from the library (for example, the U.S.A.'s National Oceanic and Atmospheric Administration's yearly summary) to make a monthly "snapshot" of the climate where you live. Click here to learn how you can make the Sun Path Model!

Calculate Your Ecological Footprint Click here and fill in a very basic questionnaire to calculate your quick and relatively accurate Ecological Footprint for an person living anywhere in the world.

How do you use Nature?

Understand Temperature Change Make a graph of daily average temperatures for a year or two. Look them up in the Local Climatological Data. A graph showing temperatures in the Northern Hemisphere for two and a half years might have roughly this shape...