Today in class we breezed by chapter two, talking about matter. Matter is anything that takes up space, and it comes in three forms, solid, liquid, and gas. Take water for example, to change it from a liquid to a gas, you would have to raise the temperature to do so. Raising the temperature also increases the kinetic energy.
We also talked about physical properties, which can be observed without changing a substance into another substance. An example is boiling water, and the density of something.
There is also chemical properties, which can only be observed when a substance is changed into another substance. An example of this is flammability.
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