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In this activity, learners experiment and observe how the color of materials that cover the Earth affects the amounts of sunlight our planet absorbs.

In this activity described on pages 2-3 of the PDF, participants debate whether there there's life elsewhere in the universe.

In this math activity, based on the research of famed astronomer Frank Drake, learners calculate the possibilities of finding intelligent life elsewhere in the universe besides Earth.

In this tabletop board game, players will represent a team of scientists and engineers sending a spacecraft on a mission to space.

In this matching game, learners study the limits of life on Earth to see what other places in the solar system might sustain microbial life.

Learners listen to and try to decipher a radio message that was sent from Earth to possible intelligent civilizations.

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.

This fun and simple hands-on astronomy activity illustrates the value of supernovae in the universe.

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

In this activity, learners explore the relative size of the Sun and Earth as well as the distance between them.

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, learners examine photo images of Earth taken from space, and attempt to identify and explain some of our planet's geological features.

Learners imagine they are paleontologists in Florida, where they find (remove from envelope) paper "fossils" of some unknown creature, only a few at a time.

Learners will explore the concept of angular distance, and investigate why the moon appears to be the same size as the sun during a solar eclipse, despite the sun being much larger.

The Sacred Cenote at Chichén Itzá is a sink hole, or well, containing groundwater. In this activity, learners create their own cenote using chalk, limestone, acids, and rain water.

In this activity, learners design a scientific exploration mission to a planet or moon of their choice.

This fun and simple activity is a rubberband rocket design challenge! Learners will explore how tail fins can help to stabilize a flying object, while also exploring potential and kinetic energy.