Analyze and make inferences from the information used by linguists to construct the evolution of languages. They research different dating techniques to explain how scientists infer age with evidence.

Students explore color, light, refraction and reflection.  In this light lesson students measure solar position and compare it to time.

Learners discuss the definition of intelligence and the possibility of measuring intelligence. They consider the elements of intelligence by reading and discussing the article "'Jeopardy' Millionaire is Smart, but Is He a Genius?They...

Fourth graders read about archaeology as a career. They develop a list of questions they would like to ask an archaeologist and then actually interview an archaeologist on the future of archaeology as a career.