More than 90 percent of bottled water contained tiny particles of plastic, according to a disturbing new study that’s prompted the World Health Organization to launch a probe into potential health ...

’Tis the season to spend more time in our humble abodes, but before we snuggle in, it might be time to clear the air. According to the US Environmental Protection Agency, the average person absorbs an ...

Students will learn how to categorize matter as either pure substances or mixtures. Students will apply tests, based on physical properties of matter samples, to determine whether a mixture is ...