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The air is made up of about 21 percent oxygen. This science projects allows you to find this percentage for yourself through examining a chemical reaction between oxygen and rust.It is an educational ...
When you walk outside on a humid summer day, you can practically feel the moisture hanging in the air. But how can you measure humidity? Believe it or not, you can make your own instrument, called a p ...
This science project compares the amount of ozone in various locations.It is an educational content by education.com.By clicking on the title of this resource, you will be redirected to the content. I ...