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Hey, Wowzer fans, Mindy here.
And before we start the show, I gotta let you know that this November, with a special new episode featuring our friends at Circle Round and Terrestrials on Radiolab for Kids,
And don't miss when Elmo from Sesame Street stops by Wow in the World to make us all belly laugh on November 24th.
Oh, but that's not all, Reg.
On December 1st, we are sharing our 250th episode of Wow in the World with all of you.
We think this one is going to be music to your ears.
Literally.
Did I mention it's a musical?
And if you're a member of the World Organization of Wowzers...
Oh boy, do I have a surprise for you.
You can listen to our 250th episode early with me and other members from around the world on Saturday, November 22nd, at 7 pm.
Eastern.
That's right, we are throwing another listening party.
Join us as we dance along to our new songs.
React to the episode with other members in the chat and more.
Grownups.
If you want your wowzer to join this members-only listening party, you can sign up to become a member today at Tinkercastcom.
Slash wow.
Already a member?
Well, you can find the link and password to join the event when you sign in at Tinkercastcom.
Slash wow.
That's it.
It's going to be a November to remember.
But for now, let's get on with the show.
Woo!
Hello, Wowzers.
It's me, Guy Raz.
And I'm Mindy.
Welcome to day four of our WeWow Tinkering Challenge.
Now, if you're just joining us for the first time and you have no idea what we're talking about, just hit pause and go back to day one to catch up.
We'll be right here when you're ready.
And if you are caught up, let's take a walk down memory lane, shall we?
On day one, we listened to our Wow in the World episode, Sunbrella for the Planet.
We learned that some scientists are trying to solve the problem of climate change by reflecting and deflecting some of the sun's powerful rays.
We jotted down ideas and came up with a question to wonder about.
Our big wonder was...
Can we change the temperature and prevent our ice cubes from melting?
On day two we gathered up materials and made a plan to experiment using the sun's rays to slow down and speed up the melting of ice cubes.
And yesterday, on day three, we designed and tested our experiment.
We used foil hats to reflect the sun's rays away from one ice cube, direct the sun's rays at another ice cube, and then we left one ice cube alone for our control.
Remember, a control in an experiment is something that stays the same no matter what, and it gives you something to compare your results to.
We also measured how long it took each ice cube to melt in each of the three scenarios.
So, Wowsers, that's our experiment.
What did you come up with?
Did you find things around your home or in your classroom to try to change the temperature and melt something?
Or did you try something else entirely?
Did you have any epic fails?
Because if you did, that's okay, too.
We can learn a ton from our epic fails.
We can?
Yeah.
When we come up with lots of creative ideas and try them out, some things might work and others might not.
Of course, because...
Testing is the time to pull out all the stops.
And if ideas don't work, we examine why and then we make changes.
So for our experiment, we took three ice cubes in three glass jars.
First, we placed one in the sun and left it alone.
That ice cube was our control.
We use it to compare the others.
For our next test, we used a foil hat to trap the sun's rays and aim them at one of the ice cubes, so that the sun's rays would be focused on the ice cube.
And for our last test, we placed one ice cube in a glass jar under the foil hat and aimed the hat back at the sky so that the rays would reflect away from the ice.
And then we timed how long it took for each of these ice cubes to melt.
And while our experiment did seem to work, there's still some room left for improvement.
For example, the shiny foil hat was... making it hard to catch the sun's rays.
But it looked really good on your head, Guy Raz.
Well, maybe we don't need the foil hats at all.
Maybe we could just use a sheet of foil, one without all the folds and wrinkles.
Yes.
The wrinkles made the sun's rays scatter.
With no wrinkles, the rays would bounce more accurately.
I think that might actually make a difference.
What does our data show, Guy Raz?
Well, it took about five minutes Four minutes for the ice cube in the sun to melt.
That was our control.
And it took close to four minutes for the ice in the glass with the focused rays.
And it took about five minutes for the one that was shaded under the foil.
I wonder what it would be like with no wrinkles.
Let's try it again with a smaller piece of unwrinkly foil.
Okay, well, Wowzers, we're going to take a quick break.
And when we come back, it's time to improve and retest our experiment.
Wow in the World will be right back.
Grown-ups, this message is for you.
Hey, grown-ups, it's Mindy and Guy Raz here from Wow in the World.
Mindy and I have some brand new Wow in the World toys out in the world just in time for the holidays.
Made for the kids who love science? and for the ones who don't yet.
From our 100 experiments, that WOWkit To the telescope and astronomy kit.
Our Wow in the World toys help your wowzer learn about their world through play.
Plus, you can hear exclusive audio content from me and Guy Raz to help your wowzer discover even more wows.
Grown-ups.
Give the gift of wow and wonder this holiday season with our latest Wow in the World toys designed with your curious wowzer in mind.
You can shop our Wow in the World toys at Tinkercast.com slash toys.
That's Tinkercast.com slash toys.
That's it.
Back to the show.
Wee!
Wow!
Welcome back to Wee!
Wow!
It's time to improve and retest our experiment.
We decided to take the wrinkles out of the foil and see if that makes a difference in the melting speed of our ice cubes.
So, Mindy...
Are you ready?
I'm ready.
Unwrinkly foil.
Check.
Three glass jars with ice cubes.
Check.
Check.
And check.
One jar in the sun.
Our control jar with no foil.
And one jar under the foil.
And check.
Set the timer.
And now we wait.
Hey, Wowzers.
While we're measuring the time it takes for our ice to melt, Why don't you reflect on the parts of your experiment that worked and also the parts that didn't, so you can improve and retest, just like we're doing?
And think about the bigger picture.
How do you think your experiment could be supersized in a way that might actually cool down the planet and help with climate change?
Then share your message with us at our WeWow hotline, 1-888-7-WOW-WOW.
Make sure to tell us what your curious question was what you did for your experiment, what materials you used and what you discovered when you tested it.
We may just play your message on tomorrow's show.
You can also share pictures and videos at Tinkercast.com slash share.
Wow, Mindy, I think my ice cubes under the sun rays is melting faster.
Oh, wow, I think so, too.
Shine on, you crazy diamonds.
Thanks for tinkering and thinkering with us.
See you tomorrow.
I can't wait to hear some of your amazing experiments.
Grownups, if you like Wow in the World, you can listen early and ad-free right now on Wondery Plus.
Join Wondery Plus in the Wondery app. or on Wondery Kids Plus on Apple Podcasts.
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