Work in Progress
Please pardon our progress while we refine the look and functionality of our new ALEX site! You can still access the old ALEX site at If you would like to share feedback or have a question for the ALEX Team, you can use the contact form here, or email us directly at

NOTICE: The old ALEX site at will not be accessible on March 31st. Please contact if this may cause an issue with a scheduled event/deadline.



  • Copernicus
  • Galileo
  • Kepler
  • Newton
  • Einstein
  • heliocentric
  • orbit
  • gravity
  • relativity


Students know:
  • Copernicus contributed the heliocentric or sun-centered conception of the universe.
  • Kepler contributed the three laws of planetary motion Galileo contributed through telescopic observations that materials in universe were more earth like rather than ethereal.
  • Newton contributed the laws of motion and universal gravitation.
  • Einstein contributed the theories of relativity.


Students are able to:
  • Identify relevant evidence found in case studies from the history of science on Copernicus, Galileo, Kepler, Newton, and Einstein.
  • Evaluate the validity, reliability of evidence along with its ability to support reasonable arguments.


Students understand that:
  • Science knowledge is a result of human endeavor, imagination, and creativity.
  • Individuals and teams from many nations and cultures have contributed to science and to advances in engineering.
  • Technological advances have influenced the progress of science and science has influenced advances in technology.

Scientific and Engineering Practices

Obtaining, Evaluating, and Communicating Information