Pressure/Friction Magic Bottle (Erica Brauer)

The Magic Power of Rice

Author: Casey Hayes

Principle(s) Illustrated

1. Friction

2. Pressure

3. Force

4. When compacted it acts like a solid, when there is space between rice, it ask more fluid like a liquid.

Standards

• DCI: PS1: Matter and Its Interactions

• DCI : Motion and Stability: Forces and Interactions

• CCC: Structure and Function

• CCC: Cause and Effect

• SEP1: Asking questions and defining problems

Questioning Script

Prior knowledge & experience:

Students should know some background in how matter interacts, they would know that these two materials are not going through a chemical change.

Root question:

1. How is the pencil strong enough to hold up the bottle of rice?

2. Why does one bottle with rice work and the other does not?

How can we relate this to every day life?

Target response:

Why is this happening? What is the "magic" behind this? What physical, chemical, or biological factors are at play?

Common Misconceptions:

I have not done this before so I do not know what the target response would be

Photographs and Movies

References

Stevespangler