Science 5: How to Build a Solar Oven
Today we're using the same energy that giver Superman his powers for an even nobler purpose: making s'mores. This video will teach you how to make a solar oven.
|Elementary and Middle School||5th Grade|
Though…we suppose that last one doesn't really count.
But you know what our personal favorite is? [Girl sat in front of a laptop]
Any day we get to dig into to our very own homemade s'mores!
That's pretty much the next best thing to a snow day, right? [Coop next to a s'more]
And if you're watching this video, you're in luck…today, you'll be building your very
own solar oven!
…or maybe you just randomly clicked on this video, and you won't be getting any s'mores. [Stop sign appears]
That'd be a bummer.
But if you are going to be building a solar oven and chowing on s'mores, then let's get
Oh, and before you start thinking, "Sweet!
A Shmoop video with zero educational purpose," Well… [Education drops from above and smashes into the desk]
There's definitely a lesson today, but there's also s'mores, so…c'mon.
This is a sweet deal. [Girl smiling with a s'more in each hand]
Anyway, the lesson today is all about solar power. [Coop pointing at solar power on a blackboard]
Solar power is a popular form of alternative energy used all over the world, and it uses
both the sun's light and heat to create energy.
If you've ever seen a solar panel before, you've seen solar power in action. [Sun appears wearing shades]
But if you haven't ever seen a solar panel, don't fret, because through the magic of video…
There's a solar panel. [Girl pointing at the solar panel looking amazed]
The solar ovens you'll build today will be another shining example of the power of solar [Girl holding the sun above her head]
So get excited!
First things first, open up that pizza box.
If there's any pizza left, eat it. [A slice of pizza is left in the box]
Or save it for later.
But do not, under any circumstances, throw the pizza out.
There is nothing worse in this world than wasted pizza. [Girl holding a bin lid in one hand and the pizza slice in the other]
Once you've done that, close the box back up, take a ruler and measure one inch from
each side of your pizza box. [Markings are made a inch from the sides]
Then use those points to create the outline of a square, like so.
Now, using scissors or the utility knife, carefully cut three of the four sides of your [The sides are cut with a knife]
square – but not the side closest to the hinge of the box.
The hinge is where the pizza box flips up, and if you cut this side, well, the whole
thing won't work, and that means no s'mores. [Stop sign appears]
You've been warned.
Oh, and speaking of warnings – be super careful with your knife or scissors. [Girl looks scared by the scissors and knife as they appear]
A trip to the hospital would also put a damper on the whole s'mores thing.
Once you've cut the three sides, you'll want to fold the flap back just a bit on the side
that you didn't cut.
This is our lid.
Enter our aluminum foil – or as they say in England, “al-you-minny-um.” [Guy wearing a bowler hat and union jack jacket]
You don't need to know that, but we just like saying it.
"Al you minny um, al you minny um."
You're going to want to line the inside of the cardboard flaps with the foil, making [Glue being applied to the inside of the flap]
sure to fold the edges of it over the top of the flap before gluing it all in place,
so that the inside of your opening is totally metallic.
This is going to reflect heat from the sun down into your oven. [Sun beams hitting the pizza box]
Oh, and try to keep the foil as flat as possible. [Hand flattens the foil]
The more crinkles and cracks you have, the s'less s'more cooking will go on.
Okay, now take a look at that gap created by the flap in the box, right by the lid there.
You'll want to cover that up with plastic wrap and black electric tape.
We don't want any holes or gaps in this thing when we close it up, so don't be shy with [Tape being applied]
your use of tape here.
This is kinda like how a car gets super hot when it's out in the sun with the windows
The sunlight goes through the windows and heats the air up, and then the hot air can't [Car getting hotter in the sun]
get out since the windows are sealed shut.
Now back to the foil.
Just like we did to our lid, we'll want to do to the inside of our box.
So whip out your aluminum foil and glue and get to work, covering up every square inch [Foil being put into the inside of the box]
of the inside with the shiny stuff.
When we close our box, we want the entire inside to be lined up and down with foil,
Once you've glued foil all up in that box, we need to take our black piece of construction
paper and glue it to the bottom of the inside of the box.
This is where the actual cooking is going to take place – so we'll call it a heat sink. [Heat sink is shown]
Now all that's left to do is tape our pencil, or skewer, into place like so, just in the
right position that it props up the top of our box about 90 degrees. [Hand shows the lid is open 90 degrees]
Once you've done that, your solar oven is all done and ready for cooking.
So ask your teacher for the cabbage and beets and we'll have a nice vegetable roast going [Vegetables are chucked into the solar oven]
on in no time at all!
Bring on the s'mores!!!! [Giant s'more appears]