Free Technology for Teachers: Why Does the Road Crack?

Just one of my favored things to do these days is to journey bikes with my daughters. Sometimes I even record those rides on Strava simply because my more mature daughter now desires to preserve track of how speedy she can go down a minimal part of highway in our community (present history 10.5mph). When we were being riding before this 7 days she complained about the cracks in the pavement in a person element of our community and asked, “why does the street crack?” 

I did my very best to response my daughter’s problem of “why does the highway crack?” by conveying that there is a lot of drinking water in the ground in our spot. When that drinking water freezes it expands and pushes up on the pavement which then can make it crack. She’s 6, so I am not guaranteed she rather acquired it even when I created the analogy to one of our clay yard pots cracking for the identical reason last winter season. 

As I almost usually do when my daughters ask me a question that I haven’t considered about in a prolonged time, I turned to YouTube in research of a visible explanation of why streets crack in the winter. Following a minor looking I discovered this video clip from the Minnesota Section of Transportation. Leap to the 1:14 mark in the movie to see an previous visual of what happens when moist soil freezes. 

https://www.youtube.com/enjoy?v=fkrrSys03qQ

This topic is a terrific just one for an animated clarification. Student can use some very simple animation tools to make an clarification of what happens when h2o and or soil freezes and pushes up from a mounted or rigid item. Sign-up for my new Animated Explanations course to discover how to build and use animated explanations in your classroom.

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