Burn paper with a magnifying glass

I used the sun to make holes in paper.

I took a small plastic magnifying glass and tried to focus the sun onto the paper but it did not work very well.

Then I took a big glass magnifying glass and that worked much better.

I put the paper into a box, and used the magnifying glass to focus the sun into a dot.  If you hold the paper and the magnifying glass very still, then the paper starts to burn.  The box was there to keep the wind away from the paper.

We made goggles to protect our eyes.  The spot of light is very bright so we took some foil from a packet of tea and wrapped it around our swimming goggles.

BEWARE.  Do not look at the sun.  Even the dot of sun on the paper was too bright and hurt my eyes.