Lend an Experiment (LEx)
|Light Bulb Efficiency and Hand Crank Energy Generation||
Keywords: breadboard, circuit, efficiency, electricity generation, energy, energy conversion, Lend an Experiment (LEx), lighting
What does it really take to power a light bulb?
This activity is part of the LEx (Lend an Experiment) Climate Kit. Students compare the power consumption of incandescent and LED bulbs through the use of hand crank generators and a simple circuit. Concepts include the conversion of mechanical to electrical energy, power and efficiency, and measurement estimation. There is an option to also investigate the efficiency of the hand crank generator.Read More...
|1 year 27 weeks ago|
|Investigating the Greenhouse Effect and Passive Solar Heating||
Keywords: greenhouse effect, Lend an Experiment (LEx), thermal absorption
We all know a car sitting outside in the sun all day can get dangerously hot inside, but why? What does this have to do with the greenhouse effect?
This activity is part of the LEx (Lend an Experiment) Climate Kit. Students explore the way materials and surfaces interact with solar radiation. We introduce the idea of the greenhouse effect, and build a small model to illustrate how it works.Read More...
|1 year 23 weeks ago|
|Generating Electricity: Wind and Water||
Keywords: electricity, electricity generation, hydro-electricity, Lend an Experiment (LEx), wind, wind energy, wind turbines
A match made in energy heaven, wind and water are wonderful sources of clean, renewable energy. Let us see what goes into this electricity generation by making some wind and water turbines ourselves!
This activity is part of the LEx (Lend an Experiment) Climate Kit. Students generate their own wind or hydro electric power by constructing wind/water blades, exploring how mechanical energy from external sources can be harnessed and turned into electrical energy. The effect of different gear ratios can also be explored.Read More...
|1 year 16 weeks ago|
|Capturing Solar Energy with Photovoltaic Cells||
Keywords: Lend an Experiment (LEx), photovoltaic cell, photovoltaics, resistance, solar, solar cells, solar energy
Did you know that the amount of power from a solar panel depends on what it's connected to? Explore how photovoltaic panels work, converting light into electrical energy, and learn how you can find the maximum power output from a solar panel.
This activity is part of the LEx (Lend an Experiment) Climate Kit. Students use solar panels to generate electrical power, exploring how light energy can be turned into electricity. Students connect the photovoltaic cells to different loads to find their peak power output.Read More...
|1 year 15 weeks ago|