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Journal Article
Secret Message Science Goggles
Imagine looking at a picture of a brightly colored frog. Put on your color filter science goggles, and the frog is gone! Imagine writing a message that can only be read with your special science goggles. Now imagine your classroom—20 goggled faces ...
Journal Article
Point of View: Seen Any Red Pandas Lately?
We humans are pattern finders and explanation seekers. Fortunately, many of our seemingly reasonable patterns and explanations have not withstood the test of time. For example, we no longer believe that volcanic eruptions occur as a result of the god...
Journal Article
In this month’s Ask the Experts column, the following question is addressed: “Do the cells in a placenta have DNA in them and if so, whose DNA does it match, the mother or the fetus?”...