project radar

December 1, 2006 at 7:45 pm Leave a comment

After Alex said, “I swallowed that pretty quickly,” I asked him if he wanted another pb&j sandwich to which he replied, “No thanks, I need to get back to work. I have a lot of things to do here.”

What’s keeping him so busy today? It’s Project Radar, an experiment in our science book in which we can discover how radar works. Todd made hills in a shoebox with newspaper and plaster of paris. I attempted to do this last week with flour and water. But it was a complete disaster even though I followed the directions in the book. I ended up with a soggy box and my whole wheat flour (maybe this was the problem: not enought gluten? ) never did harden even after 3 days in the warm pantry. I did get a bonus though: little fleas or flies or something hatched and emerged. I highly recommend using the plaster of paris instead!

After everything hardened into a nice topography of the planet Venus, I covered the shoebox with a rag and made a grid. The boys poked a bamboo skewer into each grid and color-coded it depending what height it was inside. Without seeing what was in the box, the boys determined where the hills and valleys were so they could find a flat spot to land a spacecraft just like scientists use radar.

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Entry filed under: everyday life, homeschooling.

Jackson 10 weeks old come to Earth

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Welcome to my personal blog about my life as a wife and homeschooling mother of a few energetic children! You'll find my favorite recipes, all kinds of reviews, the occasional rant, and whatever else I feel like writing about.

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grieving with guinever
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