Optical Illusions Primary Resource - small imageThis primary resource features five fascinating optical illusions. Take a look at these mind-bending brain games and discover how things aren’t always as they seem…

Each optical illusion comes with a detailed yet simple explanation to help children understand the science behind how they work. How is it possible that colours can disappear before our eyes? How can straight lines appear to bend?

Download the resource at the bottom of this page, together with a stimulus sheet featuring ideas for study group tasks and classroom activities!


N.B. The following information for mapping the resource documents to the school curriculum is specifically tailored to the English National Curriculum and Scottish Curriculum for Excellence. We are currently working to bring specifically tailored curriculum resource links for our other territories; including South AfricaAustralia and New Zealand. If you have any queries about our upcoming curriculum resource links, please email: schools@ngkids.co.uk


This Science primary resource assists with teaching the following Key Stage 1 Science (Year 1) objective from the National Curriculum:

Pupils should be taught to:

  • identify, name, draw and label the basic parts of the human body and say which part of the body is associated with each sense 


National Curriculum Lower Key Stage 2 Science (Year 3) objectives:

Pupils should be taught to:

  • recognise that they need light in order to see things and that dark is the absence of light
  • notice that light is reflected from surfaces


National Curriculum Upper Key Stage 2 Science (Year 6) objectives:

  • use the idea that light travels in straight lines to explain that objects are seen because they give out or reflect light into the eye
  • explain that we see things because light travels from light sources to our eyes or from light sources to objects and then to our eyes


This Science primary resource assists with teaching the following Sciences Early level objectives from the Scottish Curriculum for Excellence:

  • I can identify my senses and use them to explore the world around me


Scottish Curriculum for Excellence Sciences First level objectives:

  • I have explored my senses and can discuss their reliability and limitations in responding to the environment


Scottish Curriculum for Excellence Sciences Second level objectives:

  • I have explored the structure and function of sensory organs to develop my understanding of body actions in response to outside conditions

Download primary resource



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  • Saarth Sharda,India

    WHAT!! its so cool? ha! as if! I can make optical illusions on my own WITHOUT ANY HELP!!!!! and I'm just 6!!!

  • George

    I'm so excited

  • Leeann

    So cool

  • Leeann

  • rui xin


  • #happyturtle

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