Atomic Structure -Black Box Investigation (Paul DeCunzo)

Author

Paul DeCunzo

Principle(s) Illustrated

1. There is uncertainty inherent in scientific enterprise.

2. Scientific explanations are less certain when based on indirect information.

3. Scientific certainty can be increased through experimentation and collaboration.

Standards

Students will:

1. Communicate the logical connection among hypotheses, science concepts, tests conducted, data collected, and conclusions drawn from the scientific evidence.

2. Recognize whether evidence is consistent with a proposed explanation.

3. Draw conclusions from indirect scientific evidence and indicate whether further information is needed to support a specific conclusion

Questioning Script

Prior knowledge & experience:

Background on Atomic Structure and History of the Atom

• • Thompson's Cathod Ray tube experiment and discovery of the electron and plum pudding atomic structure model.

  • Rutherford's Gold Foil Experiment and discovery of the nucleus and resulting modern atomic structure model.

Root question:

Determine the internal structure of your box (#1-9) by indirect evidence (sound or vibrations, for example) produced by the moving marble. You may use any technique you wish as long as it does not damage the box or break the seal.