by Milan Sanader | Feb 24, 2020 | Gr 9-10 Science
Earth’s climate is changing in a big way, and it’s because there’s more carbon dioxide in the atmosphere than at any point in our species’ history. But Earth’s climate has changed before. How do we know that this time we’re the cause? We know thanks to tiny...
by msander | Jan 28, 2019 | Gr 1-3 Science & Tech, Gr 4-6 Science & Tech, Gr 7-8 Science & Tech, Gr 9-10 Science, Gr. 11-12 Chemistry
From sand and gravel to rock salt and magnesium chloride, the people who maintain our roads are constantly searching for the most most innovative ways to keep our road clear of snow and ice. Our science guy Steve Spangler looks at the science of de-icing with a cool...
by msander | May 13, 2018 | Gr 7-8 Science & Tech, Gr 9-10 Science, Gr. 11-12 Chemistry, Gr. 11-12 Physics
Throughout Earth’s history, climate has varied greatly. For hundreds of millions of years, the planet had no polar ice caps. Without this ice, the sea level was 70 meters higher. At the other extreme, about 700 million years ago, Earth became almost entirely covered...
by msander | Dec 4, 2017 | Gr 7-8 Science & Tech, Gr 9-10 Science, Gr. 11-12 Chemistry, Gr. 11-12 Physics
Where do glaciers and icebergs get their beautiful blue color? This unique blue might be nature’s most brilliant, and the color arises in a very special way thanks to some surprising interactions between light and water molecules. Who knew physics could be so...
by msander | Oct 20, 2014 | Gr 9-10 Science, Gr. 11-12 Biology, Gr. 11-12 Chemistry, Gr. 11-12 Physics
A new study may help mankind understand the gravity of climate change. West Antarctica has lost so much ice between 2009 and 2012 that the gravity field over the region dipped, according to an announcement Friday from the European Space Agency (ESA). The conclusion is...
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