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Science - 3rd Grade
Standard 4 Objective 1
Students will discover that gravity effects objects that they roll up a ramp.
Pre-Assessment / Invitation to Learn
Gravity is a force that constantly exists between two objects. The one with greater mass appears to pull the other. Earths pull is strong and will affect an object rolling up or down a hill. Racing a car down a ramp from different levels will allow students to observe how gravity controls the speed of objects. The farther an object falls, the faster gravity will make it go. It will also travel a short distance until air resistance works to slow it down. If students try rolling the ball or car up the ramp, they will observe that gravity slows the object and then pulls it back to the earth.
1. Use science process and thinking skills
2. Manifest scientific attitudes and interests
3. Understand science concepts and principles
4. Communicate effectively using science language and reasoning
Pre-Assessment/Invitation to Learn
Teacher tells students: "During science today, you will become researchers for an incredible new roller coaster being designed called the Beamer Screamer. Your group needs to research gravity and be able to explain to the construction crew how gravity helps the ride be exciting or boring."