Math+and+Science+Center+Disscussions

Math and Science center ideas.

__Bernoulli's Law__ With a unit of weather later in the year in my Earth Science class, this demonstration would be helpful in giving a visual demonstration of the effects of low- versus high-pressure systems and their movements. I don't think I will hang bowling balls but similar objects that will show the effect. A Shop-Vac with the blower attachment will supply the moving air. Strips of paper under one's lips also show this effect, but not as dramatically.

__Curved track versus. straight track; math and science center demo__. Many kids feel the less massive an object is the more momentum it will gain because it will gain more velocity in a quicker amount of time.. Many kids also think smaller objects will have more inertia because they accelerate faster. Example: Rolling a bowling ball and tennis ball with same force. Bowling ball has less acceleration b/c of its high inertia; yet still has more momentum. In this demo, the mass of the balls are similar but the paths they tavel are different.The increase in momentum, due to the sloped path, causes a the ball to reacher a faster velocity, quicker, causing the ball bearing on the curved path to cross the finish line first.