For this activity you are expected to predict which character is correct: the neighbour, Tom's uncle or his grandma.
You will then plan an investigation to test which objects can be seen without light, carry out the investigation and record your results.
Finally, you need to report your findings and convince the other two characters that you are correct!
This week you will carry out some investigations to help you decide how light travels. You will then watch a demonstration video that will help you make up your mind.
You will be asked to produce a labelled diagram that shows Tom how light travels. Keep the diagram for week 4 as we will look at a few examples and see if we can improve them.