Primitive Tool on MSN
25 Days Building a Water Slide to Our Underground Swimming Pool
Turning our underground house into a water-filled adventure took 25 days, but it was worth every second! Watch how we design ...
Building your own slides is a great way to get more from your microscope — here's how to make them
Making your own microscope slides can be fun and easy with these simple-to-follow tips — including dry and wet mounting, plus crafty alternatives.
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