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This is an activity (located on page 131 of the PDF) related to sleep and circadian rhythms as well as space travel.

In this activity, learners play a simple card game to learn the sequence of events in the transmission of nervous system signals.

The purpose of this plant biotechnology activity is to demonstrate the effect of changes in the environment on the growth and fertility of landscape grasses and crop grasses such as wheat and rice.

Through doing these hands-on activities, learners explore the environmental consequences associated with fossil fuel usage.

In this activity, learners investigate how increased carbon dioxide (CO2) emissions from the burning of fossil fuels is changing the acidity (pH) of the ocean and affecting coral reefs and other marin

In this activity (page 10), learners explore how molecules self-assemble according to forces of attraction and repulsion.

Learners build particulate matter collectors--devices that collect samples of visible particulates present in polluted air.

In this activity (on page 7), learners explore the meaning of a "carbon sink." Using simple props, learners and/or an educator demonstrate how plants act as carbon sinks and how greenhouse gases cause

Learners observe the outside and inside of raw chicken eggs, record descriptions, and hypothesize what will happen when a facilitator drops an egg on the floor.

Break open that used musical toy and squish some Play-Doh over the circuit boards, and you will hear some weird and distorted sounds the manufacturer never intended!

In this activity about the heart (on page 22 of the PDF), learners examine sheep or chicken hearts to learn about the heart's structure and the flow of blood through the heart.

In this activity, learners dissect a piece of pizza to learn about nutrients important for health.

In this activity about combustion and energy, learners observe a burning candle in a sealed jar and the burning of white sugar.

Working in groups, learners model the continuous destruction and creation of ozone (O3) molecules, which occur in the ozone layer.

In this playful activity, learners explore the structure of the cell—the basic unit of every living organism—by creating a model of cell structures using soap bubbles, and by examining a slice of onio

In this group activity, learners will explore the characteristics, functions and uniqueness of the mangrove tree.

Learners develop an understanding of air pressure in two different activities.