I remember doing wood engraving with a magnifying glass when I was a kid. It took a little longer to do here than I remember, but then we are 6,683 feet further away from the sun.
All you need to engrave wood with a magnifying glass is a sunny day, a piece of wood, and, well, a magnifying glass. A steady hand is a plus, too. Just focus the light "just so" and hold it until you see the thin trail of smoke. Then, slowly burn your design onto the wood. It's a little light-intense, so take little breaks to rest your eyes. Sunglasses might be a good idea.
We discussed a little bit about if you were stuck in the wilderness (or otherwise needed a fire and didn't have a lighter or matches), you could use a magnifying glass....or your glasses (though we didn't test that one out) to get a fire started.
This should be a supervised project with young kids - keep safe out there! And of course stress the importance of being careful and responsible with fire.
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEibZPpIP6MxsVC1Udu7s6tFPZgVOTnpBf_RdlD7FWlvsiehL6tAoWYSYyrMPBKUHNuO6c83EHfTDgzkCr_s1PBuENdP3CrPbiWpmargxhCTG68cBqGHFkCVq73OzlgHzVMqHrbKYm6mSEw/s400/Etching+Wood+004.jpg)
It works to light smoke bombs, too. :)
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiJIm8r-l9U9GTNX-tqj3sQOqdJ7KtWYbw9WW_eYtHnxmUWvOSAFc4CVxtIshJMw5gSBSQ2dnq11hPb_u8-C7Q4nJzaZtZYGKbk8IbEA4c85Nw8LaiyTwpdugh-9dPn5gQvbxEjz-IAtvw/s400/Etching+Wood+008.jpg)
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