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# How Clear is the Water?

This experiment is about contaminiation. Learners will model the process of verifying clean on a macroscopic level by using a small Secchi (se-key) disk and will read about how the Secchi disk is used in environmental science and compare this with... (View More)

# You Get What You Pay For

This lesson is about cost limitations on mission design. Learners will be given a budget of \$150,000 and an approved subcontractor list that has a listing of the materials and costs for construction. This is activity 6 of 7 in "Dynamic Design:... (View More)

Audience: Middle school
Materials Cost: Free

# Working Together

This lesson is about the value of teamwork. Learners will model the assembly of the Genesis wafers onto the collector arrays by working in teams. Includes a teacher's guide and students handouts. Video and audio clips are provided. This lesson 9 of... (View More)

# Keep it Clean

This lesson is about data collection. Learners will investigate different methods of sampling in a simulated cleanroom environment. Includes a teacher's guide and students handouts. This lesson 7 of 10 from the Dynamic Design: The Cleanroom module.

# Design Challenge: How to Keep Items Cool in Boiling Water?

This is a design challenge about heat transfer and insulation. Learners will apply the scientific method to design and build a container that will keep items cool when placed in boiling water. They will practice collaboration in team-building and in... (View More)

Audience: High school
Materials Cost: Over \$20 per group of students

# Snow Goggles and Limiting Sunlight

This is a lesson about radiation and the use of the scientific method to solve problems of too much radiation. Learners will build snow goggles similar to those used by the Inuit (designed to block unwanted light, while increasing the viewer’s... (View More)

# Design Challenge: How to Keep Gelatin from Melting?

This is a activity about applying the scientific method to a design challenge. Learners will design and build a platform that will be placed on a heat source. The platform is expected to serve as an insulator for a cube of gelatin. The goal is to... (View More)

# What is Industrial Agriculture?

Highly productive commercial agriculture, known as industrial agriculture, is the focus of this investigation. Students will analyze and compare the inputs and outputs of industrial agriculture after reading background information, examining photos... (View More)

Keywords: Farming

# What is Happening to the Aral Sea?

The Aral Sea, located between Kazakhstan and Uzbekistan, is diminishing in size. Students must analyze and interpret the background information, photos, images and data provided in order to determine the causes of the size change as well as the... (View More)

Keywords: GIS

# Who Will Feed the World?

Students confront the challenge of improving global agricultural production in order to feed increasingly larger populations. Students evaluate tables, maps, graphs, photos and satellite images detailing global population growth patterns and... (View More)