Bryant High School
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BAILEY SAGE MOLES 2021
Student Exploration: Estimating Population Size 
 
 
Vocabulary: percent error, population, sample 
 
 
Prior Knowledge Questions (Do these BEFORE using the Gizmo.) 
 
1.	A jar contains 100 marbles total. Some are black. If you pull 4 marbles out and 1 is black, how many out of the 100 marbles would you guess are black? I would guess around 25. Explain. The reason I would guess 25 is because ¼ is the ratio of black marbles to other marbles being pulled out of 100 and ¼ of 100 is 25. 
 
2.	A ...
Student Exploration: Air Track 
 
 
Vocabulary: air track, approach velocity, conservation of energy, conservation of momentum, elasticity, kinetic energy, momentum, separation velocity, velocity 
 
 
Prior Knowledge Questions (Do these BEFORE using the Gizmo.) 
Imagine going to a bowling alley with a bowling ball and a ping pong ball. 
 
1.	Why is a bowling ball better for knocking down pins than a ping pong ball? Because the mass of the bowling ball is greater than a ping pong ball resulting i...
Student Exploration: Air Track 
 
 
Vocabulary: air track, approach velocity, conservation of energy, conservation of momentum, elasticity, kinetic energy, momentum, separation velocity, velocity 
 
 
Prior Knowledge Questions (Do these BEFORE using the Gizmo.) 
Imagine going to a bowling alley with a bowling ball and a ping pong ball. 
 
1.	Why is a bowling ball better for knocking down pins than a ping pong ball? A bowling ball is better for knocking down pins because it has more mass and iner...