Bonneville
DC to AC to DC Efficiency
The power to learn about AC and DC power lies within everyone. The fifth of seven installments in the Off the Grid unit continues the investigation of the efficiency of a USB charger. Individuals use an inverter that converts DC power to...
Bonneville
Designing a Solar Phone Charger
What a bright idea! Working in groups, scholars design a solar phone charger by applying concepts from the unit. They use solar modules and buck and boost converters in their creations, which must be able to charge a phone after...
Bonneville
Solar Panel Basics
Going outside is a logical step when dealing with solar panels. Future scientists learn about the n-type and p-type layers of solar cells in the third of 14 lessons in the Cost Effective Solar Cells unit. They go outside to model the...
Bonneville
Simple Solar Tracker
Let the solar cells fight each other for supremacy! Given a functional solar tracker that moves toward light, groups copy the design to build their own devices. They use two sets of solar cells that have reverse polarization, so that the...
Curated OER
The Shocking Truth About Fruit
Looking for a great lesson on circuits and conductors of electricity? Take a look at this one! In it, 6th graders create circuits out of pennies, washers, alligator clips, fruit, and LED’s. Learners use voltmeters to analyze the circuits...
Teach Engineering
Maximum Power Point
Investigate the maximum power output of a photovoltaic panel with a lesson that introduces the class to the maximum power point. Individuals learn how to determine the maximum power point of a solar panel by using Ohm's law and the power...
Teach Engineering
Investigating the Properties of Plastic and its Effects on the Environment
Pore over the properties of plastic. Working through four different stations, pupils investigate some properties of plastic, including chemical decomposition, mechanical breakdown, density, and the ability to infiltrate the food chain....
Cornell University
Making a Battery
Don't be shocked when your class has a blast making their own batteries! Science scholars examine a dry cell battery, then design and construct a wet cell battery. The activity guides them through the parts of a battery, the variables...
Texas State Energy Conservation Office
Investigation: Making a PV Cell
Rise and shine! Class members collaborate to construct a photovoltaic solar cell with two semiconductor layers, as guided by this fabulous lab sheet. They test its output with an ammeter or galvanometer.
BBC
Ourselves
Young biologists identify parts of the body, sort humans from other animals, and list the difference they see. Learners are split up into groups of three, and each group must find pictures in magazines of humans and other animals. They...
Teach Engineering
Penny Perfect Properties (Solid-Liquid Interations)
I can get more water to stay on a penny than you can! Collaborative pairs determine the volume of liquids that can be contained on the surface of copper pennies and plastic coins. The pairs analyze their results using graphs and go on to...
Texas State Energy Conservation Office
Investigation: Concept Mapping Fuels
After reading an article, "Fuels for Everything," collaborative groups create a concept map poster of the transportation and non-transportation fuels. This makes a strong introduction to the different types of fuels used for transportion...
BBC
Sorting and Using Materials
First and second graders see that everyday objects are made from a variety of materials. They interact with objects such as keys, plastic spoons, a wooden ruler, a towel, and a plastic bag. A discussion ensues which leads them to...
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