In this fertilizer learning exercise, students read about natural and manufactured fertilizers. They answer four critical thinking questions about fertilizers and their use.

In this teeth crossword worksheet, students examine 15 teeth themed words and clues and use them to complete a crossword puzzle.

In this hamster facts reading comprehension learning exercise, 3rd graders will read a passage about hamsters and what they like to eat and answer 6 multiple choice questions.

In this sentence completion worksheet, students fill in the blank for the correct word for each sentence. Students complete 10 multiple choice questions. Click on "show all" to see the rest of the worksheet.

Get an overview of how water is treated in order to be safe to use and drink.

Discusses many options of water treatment, the contaminants that the treatments are focused on, how the treatment works, and common treatment systems.

KidsHealth: Dehydration and Treating Dehydration

In addition to providing a good definition of "Dehydration," this website explains how dehydration affects the body, how people get dehydrated, and how you can treat and prevent dehydration.

Learn what can cause dehydration, and recognize the signs and symptoms of dehydration. This website also has a section on how dehydration affects children.

This encyclopedia article on dehydration is organized into several sections, including: "Definition," "Causes, incidence, and risk factors," "Symptoms," and "Treatment."