In this video, mechanical engineer Amy Smith explains the design process for an innovation that enables people in isolated villages to determine whether their water supplies are free of dangerous bacteria. Included are teaching tips and additional background information. [5:52]

Teach the concept of scale models and the size of the solar system through this extensive lesson plan. Students will learn about scale models, estimate which objects to use to create a scale model of Earth and Sun, and figure out how far to place the Earth from the Sun to create a distance in scale with the objects. In addition, there are teaching tips and information on placing other planets in the scale model, and where the planetary orbits would be in the model. Additional worksheets cover topics such as relative size of nearest stars, our galaxy, and the universe.

What happens when you combine "technology" and "dissection?" At the McWane Science Center in Birmingham, AL, kids find out, by taking apart electronic gadgets to learn how they work. Kids can then put them back together or make new things with the parts. Check out what happens when they dissect cameras! [1:09]

This is a comprehensive website featuring how to build a model that illustrates sea-floor spreading and subduction. It has diagrams and pictures reviewing major geological concepts.

A helpful review of important parts of your report and ways to strengthen it. SL.9-10.4 Presentation

Observe the scale of our solar system in this video from NASA. It is difficult to show both the size and distances of the planets on the same model, so this video provides two scale models. A background essay and teaching tips are also included. Closed caption available. [0:53]

This article explains how hands-on science activity can support vocabulary development and links to two books and six web sites that provide more information.

Each part of the engineering design process, which is fundamental to any successful project, is illustrated in this video segment. This resource is useful for introducing components of Engineering Design (ETS) from the Next Generation Science Standards (NGSS) to grades 3-12 students. Included are teaching tips and additional background information. [4:50]

Learn about in advances in powered exoskeletons, a kind of wearable robot. [5:44]

Explore what causes seasons on Earth in this interactive adapted from NASA materials that features four cities at different latitudes. Use this resource to view how Earth's axial tilt causes seasons from different perspectives and to develop and use models of sunlight received at Earth's surface. Support materials include: Background Reading, Teaching Tips, and Discussion Questions.