Your Safer Source for Science

Since 1977

Address P.O. Box 219 Batavia, IL 60510
Phone 800-452-1261
Fax 866-452-1436
Email flinn@flinnsci.com

“Bouncing Ball” Distillation—Demonstration Kit

By: Doug De La Matter, Retired, Madawaska Valley D.H.S, Barry’s Bay, ON

Item #: AP6888

Price: $41.50

In Stock.

The “Bouncing Ball” Distillation Chemistry Demonstration Kit will help students visualize key concepts of the kinetic–molecular theory. A tub full of balls is used to compare energy and motion of molecules in various phases.

See more product details

Product Details

Phase changes, such as melting and evaporation, can be very “moving” events when molecules are the size of balls! A tub full of jumbo rubber balls is a perfect demonstration device for comparing the energy and motion of molecules in the solid, liquid and gas phases. What happens when the tub is shaken, gently at first, and then with more and more energy? Relate what happens to the balls to the changes that take place on a molecular level when a solid melts or a liquid evaporates. The “bouncing ball” demonstration will help students visualize key elements of the kinetic–molecular theory—how close together the molecules are in a solid, liquid and gas; their relative motion; and the attractive forces between them. Isn’t it time you made the kinetic–molecular theory truly kinetic? Ball color may vary.

Concepts: Kinetic–molecular theory, phase changes.
Time Required: 20 minutes.

Specifications

Materials Included in Kit: 
Aquarium/terrarium, 1 gallon
Ball, sponge, assorted colors, 56 mm, 14


Correlation to Next Generation Science Standards (NGSS)

Science & Engineering Practices

Developing and using models
Constructing explanations and designing solutions

Disciplinary Core Ideas

MS-PS1.A: Structure and Properties of Matter
MS-PS3.A: Definitions of Energy
MS-PS3.B: Conservation of Energy and Energy Transfer
HS-PS1.A: Structure and Properties of Matter
HS-PS3.A: Definitions of Energy
HS-PS3.B: Conservation of Energy and Energy Transfer

Crosscutting Concepts

Cause and effect
Energy and matter
Stability and change

Performance Expectations

MS-PS1-4. Develop a model that predicts and describes changes in particle motion, temperature, and state of a pure substance when thermal energy is added or removed.
HS-PS3-2. Develop and use models to illustrate that energy at the macroscopic scale can be accounted for as a combination of energy associated with the motion of particles (objects) and energy associated with the relative position of particles (objects).