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+ ward ' s science Page 1 Magnus Flyers Submitted by: Paul C. Recommended Grade Level(s): Appropriate for: 4 – 5th grade Teaching Topics & Concepts: STEM, Physics Standards: • 3-PS2-1. Plan and conduct an investigation to provide evidence of the effects of balanced and unbalanced forces on the motion of an object. • 3-PS2-2. Make observations and/or measurements of an object's motion to provide evidence that a pattern can be used to predict future motion. • 4-PS3-1. Energy: Use evidence to construct an explanation relating the speed of an object to the energy of that object. • 4-PS3-3. Energy: Ask questions and predict outcomes about the changes in energy that occur when objects collide. • 5-PS2-1. Support an argument that the gravitational force exerted by Earth on objects is directed down. Materials: • Two cups of equal size (plastic solo cups are the best, but really any two plastic/paper cups will do) • 4 – 6 rubber bands • Tape (your choice, masking or duct) • Glue (optional) • And outdoor space, or indoors if you are feeling lucky Background Information, Activity Setup: If you've ever seen a baseball game, you're probably aware that pitchers can curve the ball. We call this pitch, a curve ball. There are other pitchers that curve as well, like the slider, cutter, or split finger fastball. But have you ever wondered why the ball curves? And if you've never seen a curve ball, here's a few of some of the nastiest curve balls you've ever seen. https://www.youtube.com/watch?v=v9FQsG0KcPE Or maybe you've seen Dude Perfect or How Ridiculous shoot basketballs from really high distances, and you can see the ball actually curve towards or away from the basket. What's going on there? Well this is called the "Magnus Effect". And don't worry, we'll discuss it at the end of our lesson, but just know the Magnus Effect is what causes curve balls to curve, soccer balls to curve around Defenders, and so on. It deals with air pressure, and we're going to make some Magnus Flyers, which are going to curve just like curve balls. This content is being brought to you by the Ward's World, Science By You program. This program brings lesson and classroom activity ideas directly from science teachers around the nation right to you. From best practices to activities, Science by You offers inspiration for every subject and every grade level. Interested in sharing your own content? Learn how today. PMS200 Black 70% Cool Gray 10 Black Astra Regular get for free from dafont.com

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