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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 playful physics activity (page eight of the pdf), learners use toy cars to explore how speed and weight affect the results of collision.

In this fun sticker activity, learners will create a size wheel with images of objects of different size, from macroscopic scale (like an ant) to nanoscale (like DNA).

This kinesthetic science demonstration introduces learners to four states of matter: solid, liquid, gas, and plasma.

In this activity, participants will learn about how gigantic clouds of gas and dust in space, called nebulas, are formed. They'll create their own colorful model nebula using paint and a spinner.

In this activity, learners build a hovercraft using a paper plate, cup, and simple motor.

In this activity, learners investigate what happens when you build up static electricity on plastic balls.

In this activity, learners use the design thinking process to design and build their own aqueduct, or water bridge.

This activity was designed for blind learners, but all types of learners can participate to learn about conservation of gas. This is one of the classic experiments using baking soda and vinegar.

In this activity (page 4 of the pdf), learners build a model of a tide pool, using chicken wire, paper mache, and other craft materials.

In this activity, learners use binoculars (or a telescope) to identify and track sunspots. If using binoculars, learners need a pair that can be secured on a tripod.

Learners discover that their breath contains carbon dioxide, one of the pollutants found in car exhaust.

In this activity, learners explore how the application of nano-sized particles or coatings can change a bigger material’s properties.

In this outdoor activity, learners release a portion of a lawn from human control—no mowing, no watering, no weeding, no pest control—and then investigate the changes that result over several weeks.

In this activity (on pages 9-14), learners dissect a real flower -- the kind of work botanists do.

In this two-part activity, learners compare and contrast a variety of life cycles to better understand different organisms and how they develop.

Learners investigate how the temperature of water affects its density.

In this activity, learners use objects they find on a nature and water to make creative frozen sculptures.

In this physics activity (page 10 of the PDF), learners will explore how energy from moving water can be used.

In this activity, learners explore the web of connections among living and non-living things.