Higgins, Nadia

Explains the basics of how the comma is used in text, its purpose, and the rules for its use.

Explains the basics of how the apostrophe is used in text, its purpose, and the rules for its use.

Provides an introduction to the water cycle.

Contains step-by-step instructions for experiments that help young readers learn about the growth of plants.

Contains step-by-step instructions for experiments that help young readers learn about the parts of a plant.

Learn all about the causes, warning signs, and what to do in case you encounter a sinkhole.

A plant's environment helps it grow. Weather, soil, and animals are important to a plant's survival. But do you know what happens to a plant when the seasons change? Or how earthworms help a plant's roots? Let's experiment to find out! Simple step-by-step instructions help readers explore science concepts and analyze information.

Contains step-by-step instructions for experiments that help young readers learn about the roots of plants.

Contains step-by-step instructions for experiments to help young readers explore photosynthesis.