**AP Physics 1: Problems**

Students worked some problems on balanced forces, with an emphasis on Newton’s 3rd Law. We also started talking a little bit about the final exam, which will be a modified practice AP exam.

**Physics: 3rd Law**

Students predicted how the forces would compare during a series of collisions, then we tested teach collision out using a a pair of force sensors with hoop springs attached. Partway through the testing, a few students made the connection to Newton’s 3rd Law, which was fun to see.

**Chemistry Essentials: Covalent Bonds**

I introduced students to covalent bonding today. We aren’t going into much depth on figuring out the formulas, but we did take some time today to sketch electron diagrams (simplified Lewis dot structures) to get at what is going on during a covalent bond.

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