Search Results

In this simple and fun activity, learners discover the relationship between vibration and sound by making a squeaky toy instrument out of simple household materials.

In this activity, learners surprise their eyes with an optical illusion involving arrows made out of pipe cleaners.

In this activity, learners make an optical illusion toy from the 1800s to explore persistence of vision.

In this design challenge activity, learners add headphones to a previously built instrument (see "Build a Band" activity) to make it easier to hear.

String Thing is an interactive online game in which learners change a virtual string's tension, length, and gauge to create different musical pitches.

In this activity, learners investigate how geometry plays a role in perspective.

This activity is designed to accompany the PBS documentary about African-American chemist "Percy Julian: Forgotten Genius." Learners look through two cups with small holes in them to simulate what it'

In this optics activity, learners build a spy tool to secretly view things over walls or around corners.

During this activity, learners take part in a variety of tasks which involve moving and balancing different body parts.

In this artistic activity, learners blow up a smaller picture into a larger one, by using a grid.

In this optics activity, learners investigate afterimages.