Light rays usually travel in straight lines, but when they pass from one material to another they can be forced to bend (change direction and continue on a new straight path). The bending is called refraction. It happens because light travels at different speeds in different materials. If light rays travel through air and enter a more dense material, such as water, they slow down and bend into the more dense material. Light rays moving into a less dense material, such as from water to air, speed up and bend outwards.
This is a picture of seem and me doing reaction
Hi Siaosi,
ReplyDeleteIt's great to see you have posted some stuff about our Science with Sally. Please remember that your blog should show the learning and work the YOU have created, not what someone else has written.