Students describe how cosmic rays achieve high kinetic energy via conservation of momentum.

Students compare rates to altitude. They conduct a class discussion about the results.

Students access prior knowledge of infrared rays, ultraviolet rays, gamma rays, x-rays and cosmic waves. In this electromagnetic waves instructional activity, students hold a mock trial electromagnetic spectrum. Students present...

Learners after investigating examples of exponential growth students have an intuitive feel for the concept of exponential growth of a system.

Learners after completing this lesson, identify variables that affect the system, and specify which variables are independent; which are dependent. They represent data in a data table and a graph and analyze data and make predictions.

Students identify variables that affect the system, and specify which variables are independent and which are dependent.

Eighth graders construct various machines and compare the work done by them.

Learners explore speed by calculating the average speed of several snowmobiles, and predicting which of them is the fastest. They watch a race to verify their calculations.

Students after completing the Part II (of 2) scientific notation online lab exercises, manipulate and interpret large numbers expressed in the "mantissa and exponent" format of scientific notation.

Students manipulate and interpret large numbers expressed in the "exponent" format of scientific notation.

Students determine if the particles are coming from above, below, or from one side or the other by using a circular array of scintillators

Students identify variables that affect the system, and specify which variables are independent and which are dependent.

Learners investigate the cycles of solar activity. They plot the solar activity and use the graph to answer a number of questions and explain the relationship between the solar storms and sunspots and the impact on earth and space travel.