How Far Is That Star?

Pupils often wonder how we know the distance to various stars. Starting with a thought experiment and progressing to a physical experiment, they determine the brightness and distance to various stars. The evaluation requires critical...

Compare various types of biological diversity in a coral reef and calculate a numeric indicator that describes the diversity found in coral communities. Your class can work in groups to look at the abundance and distribution data of...

How loud was that? Individuals build wheels displaying different sounds. Then, learners use the wheels to find the number of decibels the sound creates and how long they could withstand the sound before potential hearing damage.

How far is it from your house to the grocery store? If you answered in time rather than distance, there's a scientific explanation. Science scholars compare distance/time quantities in a short, animated video. Topics include time being...

Astronomers classify all elements that are not hydrogen or helium as metals. Their "heaviness" causes turbulence that may form metal stars. An installment of a comprehensive solar system series explains how scientists believe these stars...

It seems obvious that two miles is more distant than one mile, but did you know nine minutes is more distant than nine hours? The concept of special relativity explains how this is possible by graphing using only two dimensions. The...

Aspiring astronomers study stars. They compare stars and explain the relationship between radius, mass, and diameter. By creating a star simulation, they discover how a binary star system's orbit can cause changes in the observed...

Who was Lorenzo Romano Amedeo Carlo Avogadro? He was the guy who suggested that equal volumes of gases at the same temperature and pressure should contain equal numbers of molecules. This eventually led to a new quantity for the number...

Students explain sun facts and solar information. They discover how temperature of a star is measured. They investigate the various scales used to measure temperature. They observe images of the sun. They classify stars according to te

A timely resource illustrates the effects of the passing years on sedimentary rock formation! Young geologists discover just how long it takes to create shale, slate, and other sedimentary rocks. The interactive also shows...