How To Make a Hollow Mask Illusion – Psychology for Kids – ExpeRimental #22

How To Make a Hollow Mask Illusion – Psychology for Kids – ExpeRimental #22

Baffle your brain with the famous ‘hollow mask illusion’, and experiment with how it works by making your own.
Download the info sheet here:

Watch the Einstein mask illusion:

Rachel and her children Eva and Daniel explore how our brains perceive faces by experimenting with a classic illusion.

In this activity, Eva and Daniel investigate what factors make this illusion work, and think about why our brains can be tricked in this way. Hands-on investigations like this are the perfect way to encourage children to think about how their brains work, and the way we interpret the world.

This series of ExpeRimental is supported by The British Psychological Society.

Subscribe for regular science videos:

The Ri is on Twitter:
and Facebook:
and Tumblr:
Our editorial policy:
Subscribe for the latest science videos:


May 11, 2017 / 5 Comments / by / in
  • How did you get on!? If you try this at home (or at school, or with a science club, or anywhere!) let us know. And if you tell us what you think about our videos via this survey, we'll enter you into a £100 prize draw to say thanks:

    Send us a photo or video on Instagram, Facebook or Twitter of the masks you make. We'd love to see them!

  • That Einstein mask is really crazy! Was that a Donald Trump masking being painted at 3:31?

  • Tell me I am not the only one that wants to use the Einstein mask as a jelly mould

  • That moment Eva figures out why the illusion works. Brilliant.

  • They've missed the point of the Einstein mask. They should get it on something that can revolve it completely. That will blow the kid's minds because even when you know the inside bit is coming round, your brain still makes it an outside mask ( and therefore reverses the direction of the spin)

%d bloggers like this: