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Learn about starting fires without the use of matches or lighters.The purpose of this experiment is to find out how difficult it is to start a fire from scratch.It is an educational content by educati ...
Since the beginning of the Industrial Age, air pollution has been a . Cars and factories add to our quality of life, yet take away from our quality of air. In this investigation, local air quality is ...
Observe the effect of an acid on chalk to draw conclusions about how acid rain can cause rocks to erode.It is an educational content by education.com.By clicking on the title of this resource, you wil ...
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