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This fun and simple hands-on astronomy activity demonstrates the shadow of the Earth as it rises as a dark blue shadow above the eastern horizon.

This is an activity about robotics programming. Learners will discover how precise programmers have to be as they instruct a friend to make a peanut butter and jelly sandwich.

This activity shows learners how computers use numbers to represent pictures. A grid is used to represent the pixels (short for picture elements) of a computer screen.

In this activity, learners thread gumdrops together to make a model of a polymer.

This activity models some of the ways natural processes, such as erosion and sediment pollution, affect Earth’s landscape.

In this activity, learners are challenged to create a parachute using easily sourced materials in order to transport a LEGO figure safely to the ground.

Do you have a hard time matching paint swatches with your furniture? When you consider human perception, color is context dependent.

In this activity, learners construct a model of DNA to better understand the structure of DNA and protein synthesis.

In this activity, learners look at and touch marine animal skulls to compare them and think about what they eat.

Use this Moon Map Guide to help learners identify features on the Moon, while looking through a telescope.

In this activity, learners are challenged to calculate their own weight on various planets using a scale and calculator. Older learners may be challenged to do so without using calculators.

In this activity, learners construct hail-proof houses using recycled materials to discuss storm readiness and safety.

This activity encourages visitors to build an electroscope—a simplified version of one of the tools scientists use to study the invisible forces on Earth and in space.

A design challenge that takes paper airplanes into an entirely different direction: a magnus glider uses cups and and rubber bands to create a glider that uses the same forces that a curveball (from b

"Molecules in Motion" explores how materials behave and change in a vacuum.

In this chemistry meets cooking activity, learners make carbonated, vanilla ice cream using dry ice and denatured ethanol, which are both inexpensive and accessible.

In this activity, learners will explore how and why weight distribution works.

This activity helps students learn how computers "compress" text by identifying repeating patterns of letters, words, and phrases.

In this design challenge, learners will use computational thinking to design their own board game.

In this international citizen science activity, learners measure their night sky brightness and submit their observations into an online database.