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• #### Science Max: Chemical Change or Not?

In this Science Max Quiz, Phil explains how to differentiate chemical and physical changes. He mentions that chemical changes produce new molecules, while physical changes don't. He includes several examples of both physical and chemical changes.

• #### Numb3rs: Brownian Motion Explanation

Charlie compares the shooter's path to a cue ball in pool: it moves until it hits and obstacle and then changes direction.

• #### Beakman's World: Drinking Punch Challenge

Beakman challenge: drink punch out of a glass with two straws: one inside the glass and the other outside. The straw outside of the glass causes the air pressure inside the mouth to match the outside of the mouth. Now you don't have the ability to get the liquid to move into the mouth due to the air pressure change since it's the same.

• #### Crash Course: Physics: Physics and Integrals

This integration video uncovers an example to help explain how you would go about finding an integral. The example uses physics terms with change in position, velocity, acceleration, and gravity.

• #### Beakman's World: Keeping Pressure on the Air

Beakman acts as Bernouilli to explain his principle, how it involves air pressure, and how it affects planes. He uses a demo of blowing on a strip of paper to show that it lifts the paper due to changes in air pressure. Then he blows between two balloons, and they press together due to the decrease in air pressure between them. Beakman conducts a demonstration to show how to draw liquid out of a straw by changing the air pressure.