Search Results

In this activity, learners hook up a hair to a lever system and create a hair hygrometer to measure changes in humidity.

Ocean acidification is a problem that humans will have to deal with as we release more and more carbon dioxide into the atmosphere.

In this activity, learners build a tool called an inclinometer that can find the height of any distant object, from a tree to the North Star.

This is an activity to do when there is a solar eclipse!

It's difficult to see convection currents in any liquid that's undergoing a temperature change, but in this Exploratorium Science Snack, you can see the currents with the help of food coloring.

In this activity, learners try to figure out who has their matching rock type by reading a description of their rock (no talking!).

Build a hydrometer (measures the density of a liquid) using a pipet or eyedropper.

Discover how a refracting telescope works by making one from scratch using common items. This telescope won't have a tube so the learner can see how an image is formed inside the telescope.

Things that are different sizes and stiffness vibrate differently, and in this Exploratorium Science Snack, you'll see how rings of various diameters react to vibration and external forces.

In this activity you'll see how the sun's tilt on its axis changes the length of shadows. For example, why is your shadow longer in winter than in summer?