Students determine the effects of an increase of the amount of nitrate and phosphate levels on the growth of algae. the development of a hypothesis is encouraged and students proceed to a conclusion based on their results.

Students examine the effects of nitrates and phosphates on the dissolved oxygen levels in different water sources. In this series of 3 lessons, they consider the reasons for nitrate and phosphate level increases and their effects on...

This is a resource for students to use in their study of minerals. It begins with a general description that includes the list of essential characteristics of a "mineral." Minerals are then grouped alphabetically. Selecting a name...