Fifth Grade Chemistry
Knowing the chemical and physical properties of matter and how it reacts can greatly benefit us and society. This is because in time, we are able to predict how matter will react given certain situations. These predictions and knowledge allows us to use matter and its properties to our advantage. To give a very simple example, we know that freezing water will give us ice. Since we know this as a fact, we can make ice which we can use to cool our drinks on a hot day.
When chemists study the chemical and physical properties of matter and how it changes, they go beyond ice and water of course. It is through their research and study that many of our modern luxuries have become a reality. For example the chemicals that go into an air conditioner which can cool down your room were first carefully studied and tested before being used the way it is being used at present. Another example is the neon lights we see when we drive around a city at night. The study of neon and how it reacts to high heat resulted in the creation of these lights which now brighten our cities.
Chemistry has a lot of uses. These uses can be for the purpose of making our lives better or easier and they can also be used to prevent anything unwanted from happening. For example, when you spray on anti‐bug spray or apply anti‐bug cream, the cream has a smell which is diffused into the air and stays on your skin which keeps bugs away from you. We know that this smell will diffuse by studying the chemistry of gases. In the same way, the liquid portion is absorbed by your skin and doesn't just slide off because we know (again through chemistry) how certain liquids behave. Combining the correct liquid type to the correct scent now produces an anti‐bug spray or cream that you can use.
Svante Arrhenius' Greenhouse Effect
Svante Arrhenius was a Swedish scientist born in 1959. He excelled in school and his father greatly encouraged him towards higher learning. When he went to university, he focused his studies on chemistry, and made great discoveries regarding the conduction of electricity through salt and water. His discovery of how ions affect the conductivity of a substance paved the way for the study of physical chemistry.
Page Two: Fun Facts About Svante Arrehenius (Fifth Grade Chemistry continued)
