Traces of a chemical used in rocket fuel were found in samples of powdered baby formula, and could exceed what’s considered a safe dose for adults if mixed with water also contaminated with the ...

Note: This video is designed to help the teacher better understand the lesson and is NOT intended to be shown to students. It includes observations and conclusions that students are meant to make on ...

Note: This video is designed to help the teacher better understand the lesson and is NOT intended to be shown to students. It includes observations and conclusions that students are meant to make on ...

Sunscreen is a $10 billion business, with a seemingly endless array of products available for sale. Walk into your local drugstore and you’ll find chemical and mineral formulas in virtually every SPF ...