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In this activity, learners simulate nature's water filtration system by devising a system that will filter out both visible and invisible pollutants from water.

In this water activity, learners discover ways to move water across the water table.

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

In this activity, learners discover the difficulty of ocean exploration by human beings as they investigate water pressure.

This is an activity (located on page 3 of PDF under Nasturtium Leaves Activity) about surface tension.

In a class demonstration, learners observe a simple water cycle model to better understand its role in pollutant transport.

In this water activity, learners build boats that float and sink. First, learners listen to the book, "Who Sank the Boat" and practice making predictions throughout the story.

In this activity, learners design a device to solve a problem: how to get a ball out of a drain pipe.

In this design challenge, learners design a storm drain cover that catches litter to protect waterways to learn about how local actions can have system-level effects.

In this physics activity, learners build their own rockets out of film canisters and construction paper.

This is written as a display, but can easily be adapted to a hands-on activity. Learners observe and shake containers of shiny liquids.

This is an activity that demonstrates how batteries work using simple household materials. Learners use a pickle, aluminum foil and a pencil to create an electrical circuit that powers a buzzer.

This is an activity (on page 2 of the PDF under Bone Regrowth Activity) about the two main components of bone - collagen and minerals (like calcium) - and how they each contribute to its flexibility a

In this archaeology activity, learners consider ways in which excavating an underwater site is different from excavating a terrestrial site.