Solar Lesson Ideas 2017-10-11T19:59:16+00:00

SOLAR LESSON IDEAS

We are offering an expanding archive of short “hands-on” lessons and activities about Solar Energy. We hope you find these pages useful. We are happy to share them with you. If you would like to post an activity or share a lesson idea here, please contact us.

Beginners Notes

SunWind Solar Panel Solar cells produce direct current electricity when the Sun is shining on them (or if they are close to a bright light). They do not have to be "charged up". Nor do they hold a charge. When light photons strike the solar cell material, a flow of electrons is produced instantaneously, and that electricity can be used to power electrical devices such as motors, lights, and buzzers. When the light stops, the electricity stops. Electrical energy is measured in watts, with amperes of current flowing between voltage potential differences. So voltage times amperes equals watts. [...]

A Postage Stamp of Sunlight

This exercise lets children directly feel the energy in sunlight. A dowel shaft can be attached to a motor with a piece of tubing slid onto a motor shaft bushing (or the motor pulley mounted backwards, as shown here). Hold the motor and shaft loosely in your upturned palm, with the tubing slightly bent. With your other hand aim the attached solar panel toward the Sun. The motor and shaft assembly will vibrate in the open palm of your hand - a primitive sun-drum. Consider that the solar panel is about 12 - 15% (1/8) efficient, and the motor is about [...]

Smooth Black Stone

Gather three smooth black stones, as like to each other as possible. Outdoors, in the sunlight, place the stones on a piece of cardboard. Leave one stone uncovered. Cover one stone with an upside-down jar or clear drinking glass.   For the third stone construct a simple test house with a 1-litre (1 qt.) and a 2-litre (2 qt.) milk or juice containers. You will also need Kleenex (or shredded paper towel or dry sawdust or cotton batten) as insulation, some clear plastic wrap, and an elastic band. Cut the top from each carton, about 10 cm (~ 4") up [...]

Solar Day Clock

Activity: Children build a two-dimensional model of our planet with Sun shining on it, rotating in Space, and relate their planetary position during that rotation to the 24 hours of our clock. Materials: construction paper, paper fastener, cardboard, paper, glue, marker, protractor. Directions: On a large sheet of construction paper or cardboard have the children make an appropriate Sun image in Space. To make an 'Earth", here I’ve found an image on-line with the North pole at the center, and glued it onto a circular piece of cardboard. But students could as well draw their own Earth image. Students will probably put the [...]

Orbit of the Earth around a room

Most Classrooms have a Globe. These usually have the planet correctly inclined (to show its tilt of spin in relation to the plane of our orbit around the Sun), as well as a small plate on top, at the North pole, marked off in hours. For children to visualize where their planet is in a year, in relation to the Sun, it is useful to work with a model. A shared experience makes the learning easier. This could be perhaps a weekly class focus...where is the planet today in its orbit around the Sun? To model this is relatively easy. [...]

Happy Birthday Theremin

In almost any Dollar store you can find an inexpensive birthday card that plays the "Happy Birthday" tune (or some other) when you open it. Hand waving over solar panel If you remove the works and remove the battery, you can hook up a solar panel as shown. The panel shown is 1.5 volts. (If using 1 volt panels, you would need two in series to provide enough voltage to make the speaker work.) After removing the battery, use one alligator clip to clip together the contacts where the small piece of card slipped in and out as a [...]