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In this activity, learners use an astrolabe to measure the altitude of objects. Learners will first practice taking measurements by measuring the altitude of trees and buildings.

In this Cyberchase activity, learners make carpenter's squares and use them to measure square corners. Learners cut out the carpenter's square template and attach it to tagboard.

In this activity, learners make an astrolabe, a device used for measuring altitude, including the height of objects in the sky.

This activity models the way Landsat satellites use a thermal infrared sensor to measure land surface temperatures.

In this activity, learners build a simple pinhole viewer. They use this apparatus to project images from a variety of light sources, including a candle, the Sun, and the Moon.

In this activity, learners will build the highest tower they can out of recycled materials.

Build a house you can fit inside, using cardboard tubes.

In this experiment, learners design and build a model room in a shoebox and furnish it with tiny furniture.

In this meteorology activity, learners construct simple devices to measure the direction and speed of wind.