SciNews, Monday, September 12, 2016

Swearing reveals much about us; scientist eats first CRISPR meal; renewal energy breakthrough; 13 winners split $900 million; self-sailing boat located; gravitational waves appear 10 million years later; asteroid mission hopes to learn origins of life on earth; SpaceX rocket explodes – just a few of the themes in today’s eclectic collection of SciNews.  Share these stories with your students and get them excited about science.

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Is It OK To Pee In The Pool?

Our pools are full of disinfectant chemicals that keep then free of microorganisms, but what you might not realize is that those same chemicals are interacting with, well, you. Today we’re talking poolchem, and we’re going to answer that age old question that’s been pondered in the back of every deep end swimmer’s mind – is it really okay to pee in the pool?

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Learning By Accident: Tasting Chemicals

test tube 6188082_mA substitute science teacher was conducting a common introductory lab in the grade nine applied chemistry strand, identifying unknown chemicals (salt, baking soda, chalk, sodium nitrate, and sodium thiosulphate) in numbered containers using physical properties. Prior to the activity the teacher was very careful to go over all the safe ways to observe a chemical such as, don’t touch with your hands, don’t smell, and don’t taste She even commented that two of the chemicals were toxic.

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