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Learners build a filter from old soda bottles and dirt. They create polluted water, and pour it through their filter to clean it.

Learners investigate a pre-constructed mystery tube to determine its interior mechanism.

In this chemistry meets cooking activity, learners compare the stability of egg white foams with various additives.

In this chemistry activity, learners explore whether matter is created or destroyed during a chemical reaction. They will compare the weight of various solutions before and after they are mixed.

In this "game," learners explore and relate the evolution of stars to a Navajo creation story. The story is written on a series of cards, which are laid on a table as the story is told.

In this activity, learners use a laser pointer to project a microscopic image of a liquid sample suspended from the tip of a syringe.

In this activity, learners survey living organisms near where they live or go to school, and create a local field guide.

In this outdoor, winter activity, learners find living green plants under the snow and determine the light and temperature conditions around the plants.