Welcome to This Earth!

My name is Christa Sadler, and I'm an educator specializing in the earth sciences. Of all the natural sciences, these seem to me to be the hardest for people to get their minds around. Whether outdoors in the wilderness or indoors in the classroom, geology has all too often been made so complex and technical that students of all ages are lost in jargon and big concepts.

For me, there is nothing more fascinating than figuring out how our surroundings got to look the way they do, and who lived here before us. All one needs are some very simple tools and ideas, and a whole world is opened up. With open eyes and minds, there's no telling where we will go in exploring, learning, understanding and respecting our planet and its history. This Earth goes indoors and out with people of all ages to discover the intricacies, mysteries and beauties of our planet. Please make yourself at home and have a look around.


Earth Science Education | Natural History Writing | Wilderness Travel
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