Some of the CO2 emitted by burning fossil fuels is removed from the atmosphere by natural sinks, such as the ocean. The fifth engaging lesson in the series of 21 examines the CO2 data from three very different locations. It then makes a...

Learners perform an experiment to find the linear relationship between the appllied weight and the bend of the cantilever. In this linear relationships lesson, students follow detailed directions to set up an experiment. They add weights...

Students explore the effects of chemical reactions when cooking. Using the Internet, they research enzymes and then mix jello. They examine their results and test enzyme activity by adding pineapple to the jello. Finally, they test...