The pre-schoolers are enjoying learning about the 3 major states of matter. They observed a fishbowl with water and a goldfish and was asked what was inside the bowl and they replied the obvious; a goldfish and water. They were surprised to learn that something else was inside the bowl...AIR! It was explained air is a type of gas that we can not see, smell or taste, but we can sometimes feel it and "see" it. We tested that by filling various bags with air (gas) and we noticed that "something" was inside. Later, the air was squeezed out of the bag for the children to "feel".
We also discussed how matter, such as water, can change states from a solid (ice), to a gas (steam), to a liquid (water).