Today we're talking about sunscreen and summer. And we're going to be discussing what happens when you get a sunburn? How sunscreen actually works and whether or not its bad for you, should we be worried about what is in sunscreen?
What did we learn this week? 17:16
retro reflection 17:42
Scallops are just the muscles that help open the scallop 21:28
Studytime: 27:54
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