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Falling For Science
Falling For Science
Standard 3-PS2-2. Make observations and/or measurements of an object’s motion to provide evidence that a pattern can be used to predictfuture motion.
Materials:
metal cookie tray
tennis ball
golf ball
feather (optional)
sturdy chair or stepladder
Summary: This experiment allows for students to explore the effects o
Focus Questions:
Which object hits the tray first?
Do you hear one sound (bang) or two sounds (bang-bang)?
Posted by: Emma Graczyk
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.
Materials:
a balloon
3 m length of string (thin enough to thread through a straw – fishing line works well)
1 straw
tape
Summary:
In this activity, students learn about Newton’s Third Law by making balloon rockets. Using a balloon, we can create a good demonstration for the type of propulsion that moves a rocket. When we inflate a balloon, we fill it with a pressurized gas (air). When we let go of the end, the air rushes out and pushes against the air around the balloon to move it in the opposite direction.
Focus Questions:
What is the force causing the balloon to go forward? In what direction is that force?
Can you suggest any ways that we can make the balloon travel further along the string? Try a few out!
What do you predict would happen if you change the size or shape of the balloon?
What makes the balloon stop?
Posted by: Lauren Pio
Exploring Newton's Laws with a Ramp
Exploring Newton's Laws with a Ramp
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.
Materials:
Cardboard
3 objects to go down the ramp (one light, one heavy, and one in between the two)
A larger object that can stand on it's own
Any objects to place the ramp on or change its height
Summary:
Students will be making their own cardboard ramps to test Newton's laws of gravity. This activity will require students to look at how the force of gravity interacts with different objects. Students have choice in their objects and the height of their ramp to test out their experiments.
Focus Questions:
Which object moves down the ramp the quickest? The Slowest? Why?
Create a ramp that will knock down an object at the bottom. Why did the ramp you made work?
Does the steepness of the ramp change the speed of your objects?
What is the relationship between the weight of objects, their speed when force is acted upon them, and gravity?
Posted by: Miciyah Carter
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