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 you 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 (the U.S.'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 in the US. There are 13 questions divided into 3 sections - food, transportation, and housing.

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. Here is a graph showing temperatures for two and a half years might have roughly this shape.