Burlington's ECHO Lake Aquarium and Science Center recently announced plans to expand; construction on the new facilities, which will include a lakeside pavilion and new science labs, begins this spring. The news dovetails nicely with ECHO's engaging new exhibit, "Raise the Roof," on loan from the Science Museum of Minnesota, which focuses on building design and structural engineering. Visitors learn about timber framing, the anatomy of joints and how insulation works. There's a giant Lincoln Log building station, too. The centerpiece is a small domed structure — kids can stand inside and literally raise its roof by turning a hand crank. Even adults might want to give this one a whirl.
To coincide with the exhibit, the ECHO team also plans construction of a community igloo made of recycled plastic jugs. Bring one in to donate to the cause by February 19 and get $1 off the price of admission. There's a limit of four per family per visit.
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