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In today's episode, Zack has 30 minutes to become an expert on... Concrete! This was a "hard topic"... okay now that that's out of the way, let's learn about concrete. What's it made from? Is it the most prevalent building material on earth? (hint - why would we ask if it wasn't!) And finally, is it destroying the planet? (see previous hint!)
By Kathryn Feeney and Zack Radvanksy4.8
4040 ratings
In today's episode, Zack has 30 minutes to become an expert on... Concrete! This was a "hard topic"... okay now that that's out of the way, let's learn about concrete. What's it made from? Is it the most prevalent building material on earth? (hint - why would we ask if it wasn't!) And finally, is it destroying the planet? (see previous hint!)