McCally, John

Describes the things different kinds of plants need to survive, including sunlight, appropriate temperature, water, and proper nutrients; explains how to grow strong, healthy plants by providing these requirements in the optimum amounts; and presents a hands-on demonstration of how changes in a plant's environment affect its growth.

Introduces the parts of a plant, including the roots, stems, leaves, and complex tissues called xylem and phloem; describes how a plant takes in water and minerals and how it manufactures sugar; and includes a hands-on experiment on the flow of nutrients throughout a plant's structures.

Examines the duties of the different departments in the executive branch of the United States government. Also looks at the numerous roles of the U.S. President.

Learn how concepts and ideas about government formed by ancient Greeks and Romans were developed further by John Locke, and influenced the U.S. government. Tour the early history of the U.S. and examine the Declaration of Independence, Articles of Confederation and Constitution in America's evolution.

Explains what a protist is; introduces several protists, including diatoms, kelp, and the most complex single-celled organism--the paramecium; and includes a hands-on investigation of euglena's plant-like and animal-like characteristics.

Presents an introduction to bacteria, explaining how bacteria were the first life forms on Earth, and providing information on the positive and negative qualities of fungi, protists and viruses--organisms that are an integral part of life.

Explains what viruses are, how they latch onto host cells, why viral infections can be prevented with vaccines, and how the viruses known as bacteriophages could play a large role in the battle against bacteria; and includes a hands-on demonstration of how viruses are spread through casual contact.

Presents an examination of the characteristics of simple organisms called viruses, explaining how they lay dormant until they latch on to a host cell and how they spread.

Describes the things different kinds of plants need to survive, including sunlight, appropriate temperature, water, and proper nutrients; explains how to grow strong, healthy plants by providing these requirements in the optimum amounts; and presents a hands-on demonstration of how changes in a plant's environment affect its growth.

Presents an introduction to bacteria, explaining their unique characteristics that have allowed them to survive as the planet's first life forms, their origins, and their positive and negative effects.