You will need a knife, a non-toxic marker, and some math.
Standardized tests aren't tests of basic knowledge. They're branded products produced by textbook companies, and getting the right answers depends on whether you studied from the right books.
Here's a really fascinating example of the interconnectedness of life and the importance of viewing things as systems, rather than individual events. The Bahamas are, underwater, giant mounds of calcium carbonate, part of the even larger Great Bahama Bank. That Bank, as it turns out, is not the result of local coral growth, but, instead, owes its existence to a chemistry experiment that begins in Africa's Sahara desert.
In short the authors show that when Sahara dust arrives in the Bahamas cyano-bacteria, what we used to call blue-green algae, bloom. As they bloom their photosynthesis removes CO2 from the water making the pH locally rise, alleviating ocean acidification. That blooming rise of ocean pH to a slightly more alkaline state results in what the Bahamanian’s have long called “Ocean Whitings” where the ocean becomes white like milk.
The whiting of the ocean is the result of white calcium carbonate precipitating out of solution as a solid mineral which sinks to the sea floor and accumulates in massive amounts. On the sea bed it looks like tiny pellets. That’s because it’s been reprocessed by marine worms.
Photographer Lucian Perkins documented the thousands of Virginians who camped out in cars and waited in the rain earlier this month to get access to basic dental, vision, and medical treatment at a traveling clinic.
Two doctors are pushing for the FDA to add information to drug packaging that explains how the medication compares to placebo.
Dr. Sheik Umar Khan, a hero who has treated hundreds of people in the recent deadly outbreak, is in a Doctors Without Borders isolation ward after working at a hospital where three nurses had previously died of the virus.
We have lots of new information about Mars, writes Alexandra Witze at Nature, but scientists are still struggling with what that information means and how all the parts work together.
The Center for Biological Diversity has distributed hundreds of thousands of free condoms in endangered species-themed wrappers, with the message that more humans means more extinctions.
In a story at National Geographic, bush firefighter Gabriel d'Eustachio describes multiple fires where the leading edge of flame was preceded by an invertebrate "wave of creepy-crawlies".
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Blogger Mikki Kendall is black, female, and receives a daily deluge of violent, threatening invective. When she temporarily "became" a white man, all that changed.
Is "brain eating" a metaphor or exaggeration of how the amoeba works? No, actually. It really does literally eat brains. Here's how.