Tasty Tuesday — Solar S’mores Snack

This week we will explore a sun theme!  Let’s start off with a tasty way to explore the power of the sun with this sun theme snack and experiment!

Solar S’Mores


  • Cardboard box
  • Foil
  • Tape
  • Plastic wrap
  • Graham crackers
  • Marshmallow
  • Chocolate bar

1)  Line the inside of a cardboard box with foil.

2)  Place the chocolate bar and marshmallow on top of the graham cracker.  Cover the top with plastic wrap and tape it down.  Try to move the box carefully or the marshmallows will fall off (it will still work fine even if they do.  Ours fell off, but I just put them back on when we took off the plastic wrap!).

3)  Place the box in the sunshine for one-half to two hours (depending on the temperature outside and how direct the sunlight).  It was partly cloudy today, so it took longer for ours to work.  I think it would work pretty quickly if there were no clouds in sight!

4)  Allow your child to feel how hot the box is and see the effect of the sun on the chocolate and marshmallows.  Then, eat your sun theme snack!


  1. Tami says

    we’re going to try it, but we imagine that it will be ready in just 10 minutes for us!!! (very. hot. days. here!)

  2. Laura says

    If you put the marshmallows on their ends instead of on their sides they won’t roll off.

  3. lisa says

    This is a great idea that could be used for classroom as an end of year activity. I can even envision preschool students getting a kick out of this. (just put the box out before nap time – The wait would be far too long for them, otherwise!)


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