Students learn and use the properties of light to solve the following challenge: "A mummified troll was discovered this summer at our school and it has generated lots of interest worldwide. The principal asked us, the technology classes, to design a security system that alerts the police if someone tries to pilfer our prized possession. How can we construct a system that allows visitors to view our artifact during the day, but invisibly protects it at night in a cost-effective way?"

Through two classroom demos, students are introduced to the basic properties of lasers through various mediums. In the Making an Electric Pickle demonstration, students see how cellular tissue is able to conduct electricity, and how this is related to various soaking solutions. In the Red/Green Lasers through Different Mediums demonstration, students see the properties of lasers, especially diffraction, in various mediums. Follow-up lecture material introduces students to the mechanisms by which lasers function and relates these functions to the properties of light. In the associated activity, student teams research specific laser types and present their findings to the class.

Students learn the basic properties of light the concepts of light absorption, transmission, reflection and refraction, as well as the behavior of light during interference. Lecture information briefly addresses the electromagnetic spectrum and then provides more in-depth information on visible light. With this knowledge, students better understand lasers and are better prepared to design a security system for the mummified troll.

Students learn about the basic properties of light and how light interacts with objects. They are introduced to the additive and subtractive color systems, and the phenomena of refraction. Students further explore the differences between the additive and subtractive color systems via predictions, observations and analysis during three demonstrations. These topics help students gain a better understanding of how light is connected to color, bringing them closer to answering an overarching engineering challenge question.

Solar energy in the form of light is available to organisms on Earth in abundance. Natural systems and other organisms have structures that function in ways to manage the interaction with and use of this energy. In this storyline, students will explore how light energy interacts with materials and how light energy can be transformed into energy for heating and cooling. Students design a solar water heater and explore how products like this can reduce carbon emissions to mitigate climate change.

Developed within Northwest Educational Service District's 2019-20 ClimeTime climate science teacher education proviso grant, this workshop is an opportunity for teachers to gain a better understanding of the physics that drive the climate system and the ocean circulation as well as the implications of a changing climate.

This course is an opportunity for teachers to gain a better understanding of the physics that drive the climate system and the ocean circulation as well as the implications of a changing climate.

The first module encompasses Earth’s radiation balance and the transfer of energy.

The second gives an overview of the ocean circulation, which accomplishes energy (heat) transport. There will be a demo to illustrate the importance of density in the circulation and the vertical structure of the ocean.

The third module discusses the greenhouse effect and global climate change, along with how ocean circulation impacts climate and how a changing climate might impact the ocean circulation.

Lastly, we demo a simple climate model coded in Excel that predicts global mean temperature change.

Students learn the relevant equations for refraction (index of refraction, Snell's law) and how to use them to predict the behavior of light waves in specified scenarios. After a brief review of the concept of refraction (as learned in the previous lesson), the equations along with their units and variable definitions, are introduced. Student groups work through a few example conceptual and mathematical problems and receive feedback on their work. Then students conduct the associated activity during which they practice using the equations in a problem set, examine data from a porous film like those used in biosensors, and apply the equations they learned to a hypothetical scenario involving biosensors.

In this hands-on activity, students explore whether rooftop gardens are a viable option for combating the urban heat island effect. The guiding question is: Can rooftop gardens reduce the temperature inside and outside of houses?

STEM in 30 looks at the Orion, a spacecraft built to take humans farther than they have ever gone before.

Learn about stealth aircraft and the science behind making a sneaky flying machine.

In this episode of STEM in 30, we take a look at the challenges of navigating at sea, in the sky, and even in space.

Students learn about seismology by using a sample seismograph constructed out of common classroom materials. The seismograph creates a seismogram based on vibrations caused by moving a ruler. The students work in groups to represent an engineering firm that must analyze the seismograph for how it works and how to read the seismogram it creates.

Astronaut Randy Bresnik explains the main ways astronauts communicate with people on Earth. Also learn about how satellites work in a hands-on classroom activity.

Astronaut Scott Tingle talks to us about sounds in space and then "jammed” with host Marty.

Manipulate light by building pinhole cameras, and by investigating the effects that lenses and prisms have on light.

This lesson will investigate the difference between longitudinal waves and transverse waves, and how they are able to transmit energy from one location to another.

Working as if they were engineers, students design and construct model solar sails made of aluminum foil to move cardboard tube satellites through “space” on a string. Working in teams, they follow the engineering design thinking steps—empathize, define, ideate, prototype, test, redesign—to design and test small-scale solar sails for satellites and space probes. During the process, learn about Newton’s laws of motion and the transfer of energy from wave energy to mechanical energy. A student activity worksheet is provided.

Students use the spectrographs from the "Building a Fancy Spectrograph" activity to gather data about light sources. Using their data, they make comparisons between different light sources and make conjectures about the composition of a mystery light source.

Students learn how using spectrographs helps people understand the composition of light sources. Using simple materials including holographic diffraction gratings, students create and customize their own spectrographs just like engineers. They gather data about different light sources, make comparisons between sources and theorize about their compositions. Before building spectrographs, students learn and apply several methods to identify and interpret patterns, specifically different ways of displaying visual spectra. They also use spectral data from the Cassini mission to Saturn and its moon, Titan, to determine the chemical composition of the planet's rings and its moon's atmosphere.

Student groups rotate through four stations to examine light energy behavior: refraction, magnification, prisms and polarization. They see how a beam of light is refracted (bent) through various transparent mediums. While learning how a magnifying glass works, students see how the orientation of an image changes with the distance of the lens from its focal point. They also discover how a prism works by refracting light and making rainbows. And, students investigate the polar nature of light using sunglasses and polarized light film.