Caitlin



Can You Trust Your Senses? The eye works because we focuse on different objects because of light that is either reflecting of the object or being emited from the object. The parts inside the eye with the duty of focusing the light is the cornea and the lens the lens collects the eye from the small hole in the middle of pour eye called the pupil and the iris(the coloured bit that surrounds the pupil) can expand or contract t6he pupil depending on the amount of light. If there is little light our pupil expands to collecta smuch as possible. But if the amount of light is too much the pupil contracts.

COLLOIDS

smoke/mist- This is a colloid because the solid (coal) goes into the gas (oxygen) as the solid is not spread evenly throughout the dispersion medium (gas) Smoke is a colloid because it is formed by two phases of matter. Smoke is a thick heavy mixture of gas and solid it is impossible to breathe if you remain in smoke for too long.