The Big Melt

Waxed paper, newspaper, or aluminum foil? Keeping an ice cube from melting may require one or more of these materials. Learners design a box that will provide insulation so an ice cube stays intact for at least 90 minutes.

Dry ice is extremely cold — it is -109.3°F or -78.5°C. Scholars observe and explain the molecular motion associated with melting. Then they design their own experiments to speed up the melting process. Finally, a teacher presents a...

In a classic activity, emerging electricians test various objects for electrical conductivity in a circuit. Each group constructs a simple circuit by following a diagram. Predictions are made and objects are inserted into the circuit,...

There's nothing like a cup of hot chocolate on a chilly winter's day. Except for when that hot chocolate quickly becomes lukewarm chocolate ... or even cold chocolate. What material provides the best insulation to keep the chocolate from...

This cool lesson plan is ideal for elementary engineers or physical scientists, especially when learning about heat transfer and insulation. After reading a page of background information, engineering teams collaborate to design and...

Youngsters compare the heat-holding abilities of three different cans by insulating two with different materials and measuring the temperature change of hot water over a 20-minute period. 

Why did the orchestra director use a copper baton? She heard it makes a great conductor. Scholars select six items to test in a circuit to determine if each is a conductor or an insulator. Clear instructions for using electricity allow...

You've probably noticed that the price of gasoline can fluctuate a great deal from one year to the next. Using good insulation material is one way to conserve energy and save money. Learn here which insulation materials work better than...

What is an insulator? What materials make the best insulator? Watch as Joanne and Steve conduct a simple experiment to see if a plastic cup insulates better than a styrofoam cup. Make a prediction: which do you think will be the better...

Does a material encourage or discourage the flow of thermal energy? Pupils learn that the answer determines whether a material is a conductor or insulator in a concise video presentation. The lesson also includes several examples of...