what makes rainbow activity and coloring page

What Makes a Rainbow? Challenge + Rainbow Coloring Page

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biomimicry solutions

Biomimicry Solutions – Challenge

Have you ever wondered why airplanes look so much like birds? → NO? The laws of physics cause size, shape, ...
secret cypher

Top Secret Cypher – Challenge

10 / 23 / 19 / 22 / 17          24 / 7 / 10      19       11 / 23 / 21 ...
make it with rocks

Make it with Rocks! – Challenge

Knowing all about rocks and their different properties is interesting but how does that help me every day?  Is the ...