Engineering challenges for children. We're using rubber bands to test how the energy stored can launch paper balls!
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-Hello, I'm Bitz.
-And I'm Bob.
BOTH: We love making do.
And with a little bit of know-how...
BOTH: You can do it too!
# Let's go!
# We can work it out
# I can work it out
# We'll invent a way
# Through ideas and play
# Bitz and Bob will save the day
# Bitz and Bob, Bitz and Bob, Bitz and Bob! #
Bob, do you remember how we used engineering
to get our treasure back from Pirate Bevelbeard?
No, I've forgotten.
We needed to find a way to get to the pirate ship quickly.
One, two, three, padoing!
Not far enough. We need more energy.
When things are stretchy, they store energy if they're pulled or pressed,
like this trampoline.
And when the energy's released, the gymnast can go really high.
We needed to use energy stored in our padoinga
to get to the pirate ship, didn't we, Bitz?
That's right! Let's have a look.
Time for a Bitz Brain Blitz.
When you stretch something springy,
it stores energy until you let it go.
The more you stretch it, the more energy it stores up.
And more stretch gives a bigger boing!
And if it's stretched far enough, there'll be enough energy
to send something heavy, like me and Bob,
all the way to the ship.
-Now it's your turn to try.
Look, they've got elastic bands and hair bands, and they're stretchy,
Just like our padoinga was, Bob.
They're wearing safety glasses to protect their eyes.
If they stretch the band back,
they can store up energy to fire the paper balls.
Point the band away from you!
Oh, well! Have another go!
Ready, set, go!
Ooh, yeah, let's see it again!
That's so springy, like our island padoinga.
BOTH: One, two, three, padoing!
-We did it!
Now we're going to make rubber band launchers
to padoing paper balls different distances.
You'll need some cardboard tubes of different sizes.
The smaller one fits inside the big one.
You also need two stretchy elastic bands and a pencil.
Ask a grown-up to help you.
Now let's play!
Aim safely! Away from you and your friends.
They're trying to get the paper balls into the bowls.
You might need a few goes to get it right.
They're using tape to mark how far they're pulling back their padoinga.
Oh, too short!
They'll have to pull it back further to create more energy.
The paper balls go further when you pull it back more.
Woo! They did it!
That's it! Steam pink style!
Keep engineering and inventing a way to save the day!
BOTH: You can do it too!
Padoing! We're turning cardboard tubes, elastic bands and pencils into paper ball launchers. The more energy stored, the further the paper will launch.