Atomic Models Webquest

"The opposite of a correct statement is a false statement. But the opposite of a profound truth may well be another profound truth." Neils Bohr

Creating an Atomic Model

Introduction

The discovery of the atom as we know it today was a progression, like the discovery of DNA or any other major scientific discovery. Many scientists contributed to the development of present day atomic theory. Each proposed model of the atom was based on the models developed prior to it. With each new discovery dealing with the nature of the atom, a new atomic model was constructed. The first person to believe in the existence of the atom was Democritus in 400 B.C.

Your Task

· Make a model of each progression of the atom listed below.
· Write a brief description to go with each model explaining the various components
· Present the models to the class for peer review

Be sure to include a list of resources used to complete your project (i.e. web sites, books)

Atomic Models

Solid Sphere Model or Billiard Ball Model proposed by John Dalton	Plum Pudding Model or Raisin Bun Model proposed by J.J. Thomson

Planetary Model or Nuclear Model proposed by Ernest Rutherford	Bohr Model or Orbit Model proposed by Neils Bohr	Electron Cloud Model or Quantum Mechanical Model proposed by Louis de Broglie & Erwin Schrodinger

Links to Atomic Models

Background Reading for Atomic Models:

Leucippu: founder of Atomism
A Look Inside the Atom
Atomic Structures
History of the Atomic Model
J.J. Thomson's theory of electrons
Atomic Theory
VisionLearning Atomic Theory

Examples of Atomic Models:

John Dalton's Atomic Model
J. J. Thomson Atomic Model
Schrodinger and Bohr Atomic Models
Description of Each Atomic Model

Your Product

· Models for each progression of the atom (5 total)
· Brief Description for each model
· List of resources (bibliography) - site a minimum of 3 sources

Assessment

This project will count as one test grade (100 pts) for the 2nd quarter.
Grading Considerations (see peer grading sheet)
1. Accuracy of information
2. Appearance of models
3. Creativity
4. Presentation of models to the class

________________________________________________________________________
Peer Grading Sheet
Name:  ________________					      1 - poor        5 - excellent
Appearance:			1	2	3	4	5
Correctness of Information	1	2	3	4	5
Creativity			1	2	3	4	5
Presentation			1	2	3	4	5

Overall Grade:
		1	2	3	4	5	6	7	8	9	10
	     very poor                                                               excellent

Comments:

Photo Credits

Solid Sphere Model, Planetary Model: http://www.suhsd.k12.ca.us/moh/science/Murphy/StudentProjects/DaveJohn/ATOM.HTM
Plum Pudding Model: http://www.sci.tamucc.edu/pals/morvant/genchem/atomic/page6.htm
Bohr Model: http://www.school-for-champions.com/science/atom.htm
Electron Cloud Model: www.mtsu.edu/~sschmidt/Cognitive/ intro/intro.html