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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.

In this arts and crafts activity about animals and animal characteristics, learners will design animal hats and role-play as animals.

This guide outlines how to plant a garden even if you don't have a yard!

In this activity about dinosaurs and survival, learners use scrap materials to create a miniature dinosaur habitat that includes a food source, water source, and shelter.

In this activity about dinosaurs, learners first participate in a group discussion about where and when dinosaurs lived, how big they were, and who studies them and how.

This activity (on page 3 of the PDF) has learners create models of butterfly wings.

In this activity (on the left side of page 5, continued on the right side of page 4 of the PDF), learners make models of colorful butterflies.

This activity is on page 8 of the pdf, part of the Sea Life Discovery Box. This is an activity exploring the characteristics of fish.

Learners design their own experiment to investigate how pollution diffuses through ground material.

Learners add acid rain (nitric acid) to two cups that represent lakes. One cup contains limestone gravel and the other contains granite gravel.

This online simulation game explores the different consequences of water levels on the Columbia River in the Pacific Northwest.

Learners compare the properties and solubilities of Styrofoam (TM), ecofoam packing peanuts, and popcorn. First, the solubility of each substance is tested in water.

In this two-part activity, learners will extract their own DNA from their cheek cells and learn how DNA is analyzed and used to solve crimes.

Learners investigate the properties of the liquids in two bottles. One contains layers of oil and water, and one contains oil, water, and soap.

This activity is on page 10 (continued on the right side of page 11) of the pdf, part of the Forest Animals Discovery Box. In this game, learners act out the food web.

In this activity, early learners simulate fossil prints in play dough or clay.

In this activity, learners sort and count different colored plastic dinosaurs by various attributes including tail length, whether or not the dinosaurs have horns, etc.

Learners gain an intuitive knowledge of the physical aspects of watersheds by creating their own watershed models.

Learners will explore the scientific mystery behind a disappearing group of trees by examining data and attempting to explain the decline.