Amazon S3 on MSN
Making stretchy proto putty using simple household chemicals
The science pros at TKOR make proto putty to show silicone chemistry.
On April 8, Caitlyn Matherne, Southeastern Louisiana University biochemistry student, visited Independence Leadership Academy students. The Chem Demo, provided by Benjamin Wicker and the SLU chemistry ...
一些您可能无法访问的结果已被隐去。
显示无法访问的结果