An activity where students try to optimize profits by producing the largest daily output of ammonia by simulating the Haber-Bosch process. Students will use their knowledge of equilibrium reactions and the effects of variables like...

This curricular unit contains two lessons that let students actually do the work of scientists as they design their own experiments to answer questions they generate. In the first lesson and its associated activity, students conduct a...

An explanation of scientific research using variables and controls.

Investigate the theory that including desert plants such as mesquite and cactus in a diet can help control obesity and diabetes. Design a scientific experiment that will test this hypothesis, using control variables, observation and...

Students conduct an experiment to determine how varying the composition of a construction material affects its strength. They make several adobe bricks with differing percentages of sand, soil, fibrous material and water. They test the...

In this unit, students can learn about the affects of water, soil, and sunlight on plant's growth while learning about the scientific process. Unit allows students to create a controlled experiment while studying plants.

In this lab, middle schoolers investigate the effects of a variable on the germination of a small plant. They will compare the growth of their variable to a control then write a lab report to report their findings.

An easy to do activity that investigates the basic principles behind chemical bonding. The activity is written in lesson plan format that meets NSES standards.

In general this tutorial tries to explain the reasons for things, and help you understand what's going on inside the system. The idea is to empower you to solve new problems and get the most out of your computer. Thus there's plenty of...