Science Solar Oven

Hi guys today in Science we did a Solar Oven, a solar oven is when you get cardboard and put foil around it you them put it under the sun and it should cook something. What we did is we got chocolate biscuits and marshmallows, the marshmallows didn't melt but you could see that the chocolate was melting. After some time Mr. Reizinger gave us a magnifying glass to help melt the marshmallows, when using the magnifying glass I remembered when I was 6 that I used to try and kill ants while using the sunlight. After we got to eat what we made, it tasted pretty good but it was sad that it didn't melt. Instead of an oven turning electricity into heat we turned solar power into heat.