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Cleaning with Dirt
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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.

Attract a Fish
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This outdoor activity/field trip requires a place where minnows swim, such as a local pond or brook.

Dust Catchers
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In this activity related to indoor air pollution, learners build take-home dust catchers with wax paper and petroleum jelly.

Animal Attraction
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Investigate a flower's power of marketing by making an imitation flower that successfully signals a bee (or other pollinator of your choice) to visit.

Hot Stuff!: Investigation #4
Learners test two jars containing soil, one covered and one open, for changes in temperature. After placing the jars in the Sun, learners discover that the covered jar cools down more slowly.

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

Dripping Wet or Dry as a Bone?
Learners investigate the concept of humidity by using a dry and wet sponge as a model. They determine a model for 100% humidity, a sponge saturated with water.

Flashlight Play
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In this activity, young learners will explore light and darkness through flashlight play.

Lean, Mean Information Machine: Using a Simple Model to Learn about Chromosomal DNA
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Learners observe a model of a cell and its chromosomal DNA made from a plastic egg and dental floss. Use this model to illustrate how much DNA is held in one cell.

Acid (and Base) Rainbows
Learners use red cabbage juice and pH indicator paper to test the acidity and basicity of household materials. The activity links this concept of acids and bases to acid rain and other pollutants.

Digestion
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In this food science activity, learners explore digestion and proteins by observing the action of meat tenderizer on luncheon meat.

Crossing the Synaptic Gap
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In this neuroscience activity, learners conduct a simulation to demonstrate how multiple incoming signals influence the action of neurons.

Abuse-a-Cyst
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In this activity, learners examine how brine shrimp populations can survive in some of the harshest environments.

Small Worlds
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This is a simple activity fully driven by imagination. Using materials from the home, toys, or items from nature, learners create their own world to play with.

Modeling Day and Night
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In this activity (on page 1 of the PDF), learners make a "mini-globe" to investigate the causes of day and night on our planet.

Fossilized Dinosaur Teeth Adaptations
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In this activity, learners use models of fossilized dinosaur teeth to understand how dinosaur teeth were used.

The Geophysical Light/Dark Cycle
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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.

Patterns and Relationships: Here, There & Everywhere
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In this math activity, learners use a variety of sensory modalities to gain experiences with identifying, describing and creating repeating patterns.

Latent Prints
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In this activity, learners examine fingerprints. Learners leave a hidden print on a surface and then make their own print detecting powder from graphite (found in pencils).

Baroreceptor Reflex Role Play
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In this activity about the baroreceptor reflex (BR) arc (page 123 of the PDF), learners discover the importance of maintaining adequate arterial blood pressure through a role playing exercise.