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In this fun hands-on activity, learners use simple materials to investigate evaporation. How can the evaporation of water on a hot day be used to cool an object? Find out the experimental way!

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

In this activity, learners explore center of gravity, or balance point, of stacked blocks.

In this math activity, learners observe and sketch cracking patterns in pavement.

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 math activity, learners use a "function machine" to collect and organize simple data. The function machine in this case is a cardboard box and the input/output data are paper fish.

In this math activity, learners experiment with the concept of symmetry.

This is an activity about reaction times. Just how quickly must an NHL goalie respond to save a shot, and how does your reaction time compare?

How do you measure a bubble when it's floating? You can't really, but in this activity, learners can measure the diameter of the ring of suds a bubble leaves on a flat surface.

This activity was designed for blind learners, but all types of learners can utilize it to investigate volume, mass, and density.

Did you know that you would be a different age if you lived on Mars? It's true!

This trick from Exploratorium physicist Paul Doherty lets you add together the bounces of two balls and send one ball flying.

In this math activity related to light, learners explore why a light, such as a candle or a streetlight, looks dimmer the farther away from it we get.

In this math activity related to light, learners assemble a photometer and use it to estimate the power output of the Sun.