1.
– A dark shape made when something blocks light from reaching a surface. (S, 6 letters)
2.
– When one object in space blocks the light from another (e.g., the moon blocks the sun or the Earth blocks the moon). (E, 7 letters)
3.
– The bending of light when it passes from one material to another (like from air to water). (R, 10 letters)
4.
– A form of energy that helps us see things; it travels in waves. (L, 5 letters)
5.
– A lens that is thicker in the middle and bends light rays inward to focus them. (C, 6 letters)
6.
– A lens that is thinner in the middle and spreads light rays outward. (C, 7 letters)
7.
– When a material takes in light energy and doesn’t let it pass through or reflect. (A, 10 letters)
8.
– A transparent object (often triangular) that can bend and split light into a rainbow of colours. (P, 5 letters)
9.
– The range of colours that make up white light, usually seen as a rainbow. (S, 8 letters)
10.
– The part at the back of the eye that senses light and sends signals to the brain. (R, 6 letters)
11.
– The nerve that carries messages from the eye to the brain so we can see. (O.N., 5 and 5 letters)
12.
– A type of high-energy light that can pass through most things and is used to see inside the body. (X, 4 letters)
