Solar Energy (C) Copyright 2014 - all rights reserved

Solar Energy

(C) Copyright 2014 - all rights reserved www.cpalms.org

Three Mechanisms of Energy

ConvectionConductionRadiation


Convection This takes place when molecules that

are heated move from one place to another taking heat with them.

Examples of Convection: Macaroni rising and falling in a pot of

boiling water Lava lamp


Conduction Conduction is heat being transferred

from one object to another. Examples of Conduction:

A pot sitting on a hot burner Picking up a cup of hot coffee, hot cocoa, or tea Ironing a shirt


Radiation Radiation is the transfer of heat energy

through waves. Examples of Radiation:

When you open your oven in your kitchen and the heat escapes the inside of the oven

The heat from a bon fire or camp fire Lying out in the sun to get a tan Can you think of an example?

Radiation can be reflected, scattered and absorbed.


Volume Review: What is volume? What is the formula for volume? What unit will your answer be in? Using your math knowledge find the

volume of the following rectangular prism or box: Base: 6 m Width: 10 m Height: 3 m


Investigation How do you think the dimensions of

different solar ovens will influence the time it takes for cookies to bake?

Today’s task is to construct your oven so that tomorrow we can bake cookies! When you get to your lab station you will complete the following: Step 1: Each group is going to receive a

volume size for your oven. Step 2: Figure out the height of your oven. Step 3: Write your hypothesis on your

Investigation Report. Step 4: Begin your construction of your oven.(C) Copyright 2014 - all rights reserved

www.cpalms.org


Creating a line graph Label your x-axis(independent variable)

and y-axis (dependent variable). Remember that x-axis is the time in

minutes and y-axis is the temperature. Remember you are making a line plot!

Conclusions What caused the cookie to bake without

electricity? Which materials were more effective and

aided in the cooking of the cookie dough? How do the dimensions of solar ovens

influence the time it took for cookies to bake?

Are there any other factors that affect the baking of the cookies?


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Solar Energy (C) Copyright 2014 - all rights reserved