Students use global temperature data to create models and compare short-term trends to long-term trends.

Students observe the process and results of transpiration from a plant in their schoolyard.

Students will compute the approximate travel time to planets in the solar system using different modes of transportation.

Students model the position of the planets around the Sun and then model viewing them from Earth on any given date.

In this activity, students use spreadsheet software and their knowledge of scale, proportion and ratios to develop a solar system model that fits on a playground.

Students learn to describe meteorites and rocks using candy bars as familiar models.

Students learn the difference between land ice and sea ice and make a model to see how the melting of each impacts global sea level.

In this illustrated problem set, students use pi to compare the sizes of Mars landing areas, calculate the length of a year for a distant solar system object, measure the depth of the ocean from an airplane, and determine the diameter of a debris disk.

Students build their own comet models using craft materials.