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Science 5: How to Build a Solar Oven 46 Views


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Description:

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.

Language:
English Language

Transcript

00:04

[Dino and Coop singing]

00:13

Some days of school are extra fun… [Girl smiling in the corridor]

00:16

Like any day the cafeteria serves your favorite hot lunch... [Girl cheering next to burgers]

00:18

Or like…any field trip…

00:20

Or maybe a snow day, where you didn't have to go to school at all! [Girl riding a sled]

00:23

Though…we suppose that last one doesn't really count.

00:26

But you know what our personal favorite is? [Girl sat in front of a laptop]

00:28

Any day we get to dig into to our very own homemade s'mores!

00:32

That's pretty much the next best thing to a snow day, right? [Coop next to a s'more]

00:36

And if you're watching this video, you're in luck…today, you'll be building your very

00:40

own solar oven!

00:41

…or maybe you just randomly clicked on this video, and you won't be getting any s'mores. [Stop sign appears]

00:45

Man.

00:46

That'd be a bummer.

00:47

But if you are going to be building a solar oven and chowing on s'mores, then let's get

00:51

started!

00:53

Oh, and before you start thinking, "Sweet!

00:55

A Shmoop video with zero educational purpose," Well… [Education drops from above and smashes into the desk]

00:58

…sorry."

00:59

There's definitely a lesson today, but there's also s'mores, so…c'mon.

01:02

This is a sweet deal. [Girl smiling with a s'more in each hand]

01:04

Pun intended.

01:05

Anyway, the lesson today is all about solar power. [Coop pointing at solar power on a blackboard]

01:08

Solar power is a popular form of alternative energy used all over the world, and it uses

01:13

both the sun's light and heat to create energy.

01:16

If you've ever seen a solar panel before, you've seen solar power in action. [Sun appears wearing shades]

01:21

But if you haven't ever seen a solar panel, don't fret, because through the magic of video…

01:26

Bam.

01:27

There's a solar panel. [Girl pointing at the solar panel looking amazed]

01:29

The solar ovens you'll build today will be another shining example of the power of solar [Girl holding the sun above her head]

01:33

energy.

01:34

And…y'know.

01:35

S'mores.

01:36

So get excited!

01:37

First things first, open up that pizza box.

01:40

If there's any pizza left, eat it. [A slice of pizza is left in the box]

01:42

Or save it for later.

01:43

But do not, under any circumstances, throw the pizza out.

01:47

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]

01:50

Once you've done that, close the box back up, take a ruler and measure one inch from

01:54

each side of your pizza box. [Markings are made a inch from the sides]

01:57

Then use those points to create the outline of a square, like so.

02:01

Now, using scissors or the utility knife, carefully cut three of the four sides of your [The sides are cut with a knife]

02:06

square – but not the side closest to the hinge of the box.

02:09

The hinge is where the pizza box flips up, and if you cut this side, well, the whole

02:14

thing won't work, and that means no s'mores. [Stop sign appears]

02:16

You've been warned.

02:17

Oh, and speaking of warnings – be super careful with your knife or scissors. [Girl looks scared by the scissors and knife as they appear]

02:21

A trip to the hospital would also put a damper on the whole s'mores thing.

02:25

Once you've cut the three sides, you'll want to fold the flap back just a bit on the side

02:28

that you didn't cut.

02:30

This is our lid.

02:31

Enter our aluminum foil – or as they say in England, “al-you-minny-um.” [Guy wearing a bowler hat and union jack jacket]

02:36

You don't need to know that, but we just like saying it.

02:39

"Al you minny um, al you minny um."

02:40

Heh.

02:41

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]

02:45

sure to fold the edges of it over the top of the flap before gluing it all in place,

02:49

so that the inside of your opening is totally metallic.

02:53

This is going to reflect heat from the sun down into your oven. [Sun beams hitting the pizza box]

02:56

Oh, and try to keep the foil as flat as possible. [Hand flattens the foil]

02:59

The more crinkles and cracks you have, the s'less s'more cooking will go on.

03:04

Okay, now take a look at that gap created by the flap in the box, right by the lid there.

03:09

You'll want to cover that up with plastic wrap and black electric tape.

03:12

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]

03:17

your use of tape here.

03:18

This is kinda like how a car gets super hot when it's out in the sun with the windows

03:22

rolled up.

03:23

The sunlight goes through the windows and heats the air up, and then the hot air can't [Car getting hotter in the sun]

03:26

get out since the windows are sealed shut.

03:29

Now back to the foil.

03:30

Just like we did to our lid, we'll want to do to the inside of our box.

03:34

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]

03:39

of the inside with the shiny stuff.

03:41

Ooh….shiny.

03:43

When we close our box, we want the entire inside to be lined up and down with foil,

03:48

like so.

03:49

Once you've glued foil all up in that box, we need to take our black piece of construction

03:53

paper and glue it to the bottom of the inside of the box.

03:56

This is where the actual cooking is going to take place – so we'll call it a heat sink. [Heat sink is shown]

04:01

Now all that's left to do is tape our pencil, or skewer, into place like so, just in the

04:06

right position that it props up the top of our box about 90 degrees. [Hand shows the lid is open 90 degrees]

04:11

Once you've done that, your solar oven is all done and ready for cooking.

04:15

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]

04:18

on in no time at all!

04:20

…Heh.

04:20

Just kidding.

04:21

Bring on the s'mores!!!! [Giant s'more appears]

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