In this engineering challenge, students must stay within design limitations while creating a balloon and gondola system that can descend or ascend at a given rate or maintain its altitude.

In this illustrated math problem, students use the mathematical constant pi to find the "habitable zone" around a distant star and determine which of its planets are in that zone.

In this lesson, students use their knowledge of moon phases to build a calendar they can use to find out when and where to see each phase of the Moon throughout the year. Calendar for 2023 now available for download!

Students use a planar model of a gravity well to create different orbital configurations around a central mass.

Students predict the scale of our solar system and the distance between planets, then check their answers using fractions.

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

Students will learn about the expanding universe and the redshift of lightwaves, then perform their own calculations with a distant supernova.

Students use the Danjon Scale of Lunar Eclipse Brightness to illustrate the range of colors and brightness the Moon can take on during a total lunar eclipse.

Students use a paper plate to make a model that explains why lunar eclipses don’t occur during every full moon.