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

In this activity (on pages 18-29) learners explore the impact of the March 24, 1989 oil spill in Alaska caused by the Exxon Valdez tanker.

In this activity, learners compare and contrast their own skin (including the area covered) with that of an orange.

In this food science activity, learners conduct an experiment that demonstrates the importance of light to plants.

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

"Nature of Dye" allows participants to create their own dyes and art while exploring how chemicals interact and how these interactions can have real-world applications.

In this activity, learners calculate their water usage (in cups and galloons) during an average shower. Learners also chart and analyze water usage during showers in their households.

In this activity on page 5 of the PDF (Plants—The Green Machines), learners use chromatography to separate and identify pigments within various leaves.

In this activity, learners investigate soil conditions by creating a soil map. Learners record soil characteristics and compare the conditions of soil in different grid sections.

In this physical sciences activity, learners explore how passive solar design increases energy efficiency.

In this activity, learners build penetrometers to test leaf toughness. Biologists measure leaf toughness to study the feeding preferences of insects and bugs.

In this activity on page 11 of the PDF, learners follow simple steps to recycle old newspaper into new paper.

In this water pollution activity, learners create pond water cultures and investigate the effects of adding chemicals or natural nutrients.

En esta tira cómica, Mateo y Cientina observan unas hormigas para contestar algunas preguntas: ¿Qué comen las hormigas?

In this activity on page 7 of the PDF (Chemistry—It’s Elemental), learners use iodine to identify foods that contain starch.

In this activity on page 7 of the PDF (Plants—The Green Machines), learners examine the effects that light and air have on green plants.

"What's in the Water" lets participants use tools to solve the mystery- what chemicals and compounds are in a sample of water?