Students use potatoes to light an LED clock (or light bulb) as they learn how a battery works in a simple circuit and how chemical energy changes to electrical energy. As they learn more about electrical energy, they better understand the concepts of voltage, current and resistance.

This activity supports sense-making around kinetic and potential energy through a series of demonstrations.

Uncountable times every day with the merest flick of a finger each one of us calls on electricity to do our bidding. What would your life be like without electricity? Students begin learning about electricity with an introduction to the most basic unit in ordinary matter, the atom. Once the components of an atom are addressed and understood, students move into the world of electricity. First, they explore static electricity, followed by basic current electricity concepts such as voltage, resistance and open/closed circuits. Next, they learn about that wonderful can full of chemicals the battery. Students may get a "charge" as they discover the difference between a conductor and an insulator. The unit concludes with lessons investigating simple circuits arranged "in series" and "in parallel," including the benefits and unique features associated with each. Through numerous hands-on activities, students move cereal and foam using charged combs, use balloons to explore electricity and charge polarization, build and use electroscopes to evaluate objects' charge intensities, construct simple switches using various materials in circuits that light bulbs, build and use simple conductivity testers to evaluate materials and solutions, build and experiment with simple series and parallel circuits, design and build their own series circuit flashlight, and draw circuits using symbols.

In this lesson, students are introduced to the types of renewable energy resources. They are involved in activities to help them understand the transformation of energy (solar, water and wind) into electricity. Students explore the different roles of engineers working in renewable energy fields.

This lesson guides students through an investigation of the expansion and contraction of metal due to changes in temperature.

Astronaut Randy Bresnik talks about the challenges of working in the raging heat and freezing cold. Also check out an experiment you can do in your classroom.

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 Randy Bresnik explains this condition that astronauts experience. Also check out a demonstration of "Puffy-Head Bird-Legs"

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.

In this activity, students will use hot and cold water to see how fluids at different temperatures move around in convection currents.

In this activity, students learn how engineers use solar energy to heat buildings by investigating the thermal storage properties of some common materials: sand, salt, water and shredded paper. Students then evaluate the usefulness of each material as a thermal storage material to be used as the thermal mass in a passive solar building.

Students are introduced to the sound environment as an important aspect of a room or building. Several examples of acoustical engineering design for varied environments are presented. Students learn the connections between the science of sound waves and engineering design for sound environments.

Students are provided with an understanding of sound and light waves through a "sunken treasure" theme a continuous storyline throughout the lessons. In the first five lessons, students learn about sound, and in the rest of the lessons, they explore light concepts. To begin, students are introduced to the concepts of longitudinal and transverse waves. Then they learn about wavelength and amplitude in transverse waves. In the third lesson, students learn about sound through the introduction of frequency and how it applies to musical sounds. Next, they learn all about echolocation what it is and how engineers use it to "see" things in the dark or deep underwater. The last of the five sound lessons introduces acoustics; students learn how different materials reflect and absorb sound.

Students learn about providing healthcare in a global setting and the importance of wearing protective equipment when treating patients with infectious diseases like Ebola. They learn about biohazard suits, heat transfer through conduction and convection and the engineering design cycle. Student teams design, create and test (and improve) their own Ebola biohazard suit prototypes that cover one arm and hand, including a ventilation system to cool the inside of the suit.

Unit Goals: By the end of the unit, students should be able to combine some or all of the following ideas to explain the flashlight phenomenon or other related events.PS3.A Definitions of energyPS3.B Conservation of energy and energy transferPS3.D Energy in chemical processes and everyday lifePS1.A Structure and Properties of MatterPhenomenon & Anchoring Question Phenomenon: [Mr./Ms.Teacher] accidentally shoves the flashlight in a desk drawer and the switch gets flipped on. The flashlight stays on inside the desk for a whole month (30 days). When [Mr/Ms. Teacher] goes to use the flashlight it doesn’t work anymore. What happened? What caused it to stop working? What’s happening inside the flashlight or parts of the flashlight that might cause it to stop working?Question: Why would a flashlight eventually stop working if it were accidentally left turned on for a period of time?  

Find out how a whip and a Slinky can help us understand the speed of sound.

Students come to understand static electricity by learning about the nature of electric charge, and different methods for charging objects. In a hands-on activity, students induce an electrical charge on various objects, and experiment with electrical repulsion and attraction.

This is the last of five sound lessons, and it introduces acoustics as the science of studying and controlling sound. Students learn how different materials reflect and absorb sound.

In this lesson, the electromagnetic spectrum is explained and students learn that visible light makes up only a portion of this wide spectrum. Students also learn that engineers use electromagnetic waves for many different applications.

Three short, hands-on, in-class demos expand students' understand of energy. First, using peanuts and heat, students see how the human body burns food to make energy. Then, students create paper snake mobiles to explore how heat energy can cause motion. Finally, students determine the effect that heat energy from the sun (or a lamp) has on temperature by placing pans of water in different locations.