Thames & Kosmos Barbie STEM Kit: Science Saves the Day handleiding

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Optical Illusion Dresses

Help Barbie and Nikki make the

optical illusion dresses. Cut the

paper sheets from pages 27-32.

“I’m going to wear this

dress to the Gala,” Nikki

stated, twirling around in

her beautifully paerned

dress. “I just hope the

optical illusions don’t

make anyone dizzy.”

“It’s such a unique

dress. It will be a great

conversation starter,”

Barbie said. “We’ve

found your dress, but

look at the mess we’ve made with these

experiments!”

“If we work together, we’ll have everything

cleaned up in no time,” said Nikki.

Optical illusion paerns use colors and shapes

to trick your brain into thinking you are looking

at something diﬀerent than what is really printed

in the paern.

Your eyes gather light, which they turn into

electrical signals, which are then sent to your

brain for processing. Because of the way your

brain and eyes process images and light, what

we see doesn’t always match reality. Your brain

and eyes use the context of an image, or what is

around the image, to perceive and understand

an image. By altering the context in diﬀerent

ways — such as those you can see for yourself

in the optical illusion paerns in this manual —

optical illusions are made.

Key

Fold, then unfoldNew fold/crease

Permanent foldFlip to other side

Front side of paper

Back side of paper

Old position

New position

Cut out a square

piece of paper.

Fold the

top edge to

the boom.

Fold to make

a diamond.

Fold corners

diagonally.

Fold sides in

to midline.

Fold inner

corners down.

Flip over.

Fold the boom

edge upward,

along a new line.

Fan the boom

corners

outward.

Fold these small corners inward

along diagonal lines and unfold.Flip over.

Flip

over.

Fold in half

and unfold.

Fold in half

the other way

and unfold.

Fold sides into

center and

unfold. Flip over.

Fold the two

vertical creases

to the midline. Flip over.

EXPERIMENT

Done!

Try making dresses

from all of the optical

illusion paerns.

WHAT’S

HAPPENING?

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