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Teaching Earth Science for the first time | Posted in Earth and Space Science

I don't remember where I got this (possibly Facebook - or here!) but I use an inflatable globe and throw it out to a student. The student catches it and tells me how many of their fingers are touching water. They then share something about themselves and toss it to another student. Tally up the number of fingers touching water for each student and then calculate the average at the end It should be close to 70%, the amount of the planet's surface covered with water.


Cris Dewolf

The Drake Equation | Posted in Earth and Space Science

The Drake equation is not directly used by scientists in their research. Rather it is often used when talking about life in the universe to non-scientists, such as in astrobiology courses, as James mentioned. One of the keynote addresses I sometimes deliver is on astrobiology, and I discuss the Drake equation quite a lot, as it relates to many fascinating topics regarding the development of life in the universe, where we would expect to find life, and how common we might expect life to be.

The purpose of the Drake equation is not to give a precise answer to that fundamental question -- How many technological civilizations are in our galaxy? -- but to form the basis of discussions by presenting various types of information that we would need to know, if we wanted to answer that question.

So basically the Drake equation is a statement that "stimulates intellectual curiosity about the universe around us, for helping us to understand that life as we know it is the end product of a natural, cosmic evolution, and for helping us realize how much we are a part of that universe." (https://www.seti.org/drakeequation)

What the equation and the search for life has done is focus science on some of the issues concerning life in the universe, specifically the development of life starting with chemical processes, the development of multi-cellular life, and the development of intelligence.

Matt


Matthew Bobrowsky

Science Trips | Posted in Informal Science

Pam, I really like your idea of visiting a local university with students! I know from experience that children at this age look up to young adults, which provides a much greater chance for the students to listen! A great idea for them would be to visit the greenhouse (in the university has one) or, doing something even in a science class, or EL ED methods course.


Haley Wiebenga

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