Physics: Snakey Spring Waves

Students used the snakey springs to start exploring properties of mechanical waves. Today, they found ways to affect the speed of the wave and made observations about what happens when a pulse reaches the end of the spring.

Chemistry: Molar Mass

Today molar mass got a little more abstract as students calculated the molar mass for actual chemical formulas and answered questions like how many moles of chalk it takes to write their names on a lab table. A lot of students sketched diagrams of the formulas to help figure out what they had to add or multiply to get the molar mass and most felt pretty confident by the end of the hour.