Design and build a small shelter that keeps a toy noticeably cooler in the sun than one left unprotected.
This week is an engineering challenge using what you know about sun and shade. Your job is to build a small shelter that blocks sunlight and keeps a toy, or a small dish of water, cooler than it would be sitting in full sun.
To know if your shelter really worked, you need to compare it to a toy left with no shelter at all, in the exact same sunlight.
Mastery looks like: They build a shelter that measurably or noticeably keeps an object cooler in the sun compared to an unprotected one.
Common stumbles: Leaving gaps that let sunlight through anyway; comparing to a toy that started at a different temperature or sat out for a different amount of time.