Yesterday we learned all about the states of matter. We learned how to define a solid, liquid, and gas. We categorized different objects and substances. And then we took a trip down to the molecular level! Pretty fancy stuff!
| A SOLID has a definite shape and size. The molecules are packed very tightly together. A solid only changes if you break it or an outside force acts upon it (like temperature or chemicals). We talked about tables, trees, bricks, and bones. | |
| A LIQUID has a definite size, but can change shape. The molecules move more freely around. A liquid takes the shape of any new container, but it doesn't grow or shrink unless you add some or take some away. We talked about orange juice, milk, and water. | |
| A GAS has no definite shape or size. The molecules move around quickly to escape a container. Gas is all around us, but we only see it when it has particles or water in it. We talked about oxygen, carbon dioxide, smoke, and steam. | |
We demonstrated our knowledge of molecular structure with sequins. Needless to say, it was fun!
