Travelling Light

Travelling Light Starter: Draw the path the light ray takes to enable the eye to see the book. Light from the lamp strikes the book. Some of the light is reflected into our eye.

Travelling Light How do we know? The facts: Light travels in a straight line Light travels at 300 000 000 m/s Light travels faster than sound (340 m/s) -1 million times faster! How do we know?

Travelling Light Write down what you think the following words mean: Transparent Opaque Translucent Reflect Absorb Polychromatic

Name some uses of light

Uses of light

Investigating Shadows Practical: Plan an investigation to find the relationship between the distance and shadow size. Write a plan for your investigation. Include: Prediction with scientific reason Equipment list & labelled diagram Procedure & variables Safety!! Record your results in a suitable table Conclusion

Vision We use our eyes to gather information about the world But ‘seeing’ is really done in our brains, where the picture is put together. If our brain can’t make sense of what it sees, it starts making things up...

Do you see an old or a young lady?