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Some aquatic organisms live in open water, while some live in soil at the bottom of a body of water.

In this outdoor, freshwater activity, learners explore the behavior and food preferences of crawdads (or crabs) by "fishing" for them with various baits.

In this outdoor, night activity, learners track nocturnal animals' footprints, droppings and other signs of their presence.

In this activity, learners will be able to measure themselves in nanometers. A nanometer is a billionth of a meter, a unit of measurement used in nanotechnology.

Learners make a "menu" of any plants in their lunch for Monday through Friday and draw the plants from their lunch.

In this art-related activity, learners make a coin rubbing—a process similar to what archeologists may do with ancient artifacts. This activity can be used in connection with a history or art lesson.

Using a real-size sketch of a baby elephant's footprint, learners estimate, measure and record the width (diameter) and outside edge length (perimeter or circumference) of the footprint.

In this activity, learners build a bird feeder or feeders to attract birds for observation.

In this simulation activity, learners observe what can happen when ocean waves churn up water and oil from an oil spill.

Many germs spread by our hands, and often times, people don't wash their hands well enough to get rid of germs.

In this self-measuring activity, learners observe and record how many times a minute they blink, take a breath, and chew, as well as how many times a minute their heart beats.

In this activity, learners look at and touch marine animal skulls to compare them and think about what they eat.

In this group or individual activity, learners are encouraged to watch birds near home or school—possibly where birds are nesting in a tree, pecking in a park, feeding from a feeder, or flying through

En esta actividad, los aprendices harán un terrario usando materiales simples.

In this activity, learners explore a bucket of sand and beach objects.

This activity gets learners looking at 6-sided shapes in nature, including the cells of a beehive, as well as other shapes.