Due to surface tension, dew — a liquid, is spherical in shape. Learners explore the properties of liquids in activity seven in this series of 36. Beginning with its basic properties such as boiling point and moving through to surface...

Lesson 19 in the series of 36 analyzes the element hydrogen and the s-block elements. Through readings, answering questions, and discussion, learners write about and explain their occurrence, physical and chemical properties, and...

Aqua regia, or royal water in Latin, is a solvent that can dissolve solid gold and platinum into a solution. Activity nine in a series of 36 allows classes to learn, through readings and answering questions, what a solution is and the...

Classes explore colloids through readings and questions in lesson 10 in a series of 36. They learn everything from methods of preparation and properties to how to classify colloids. They finish the lesson by seeing how to apply...

Did you know that flooding is the most common natural disaster in the United States? Prepare your learners with the facts about floods and offer them the proper knowledge and tools for dealing with this type of emergency.

This extensive overview of water describes the unusual properties that make it essential for life.

Good starting point for researching ocean life. Find general information, research-topic ideas, a glossary of important terms and people, and numerous links to related sites.

Describes the physical characteristics of Daphnia, their importance as a food source for freshwater fish, their diet, life cycle, and methods of reproduction. Offers tips for how to start and maintain a colony of Daphnia that can be used...