This lesson focuses on recognizing and demonstrating the standard uses of apostrophes including in possessives, contractions, acronyms, and numbers. It also provides a practice activity.

This page is plenty fascinating and detailed. Done by a space scientist at the University of Colorado, it provides neat animations and not enough text. Explore particularly the Space-Time Wheel.

Expanding gases are everywhere, from the kitchen to the cosmos. You've tasted their pleasures every time you've eaten a slice of bread, bitten into a cookie, or sipped a glass of soda. In this chemistry science fair project, you'll...

An interactive abbreviations assessment is found on this page. Acronym, initialism, and contraction concepts are included on this assessment.

In this lesson the young scholars will learn how the heart functions. Students will be introduced to the concept of action potential generation. The lesson will explain how action potential generation causes the electrical current that...

Sometimes, against a uniform, bright background such as a clear sky or a blank computer screen, you might see things floating across your field of vision. What are these moving objects, and how are you seeing them? This video explains...

This site discusses the misuse of the apostrophe, such as using an apostrophe in a word which is a simple plural, now known as "greengrocer's apostrophe", the contraction it/it's, who's/whose, etc. A trend toward dropping the possessive...

This resource has two sections: Overview of Contractions, and video demonstration. It provides downloads of the following: lesson plan, lesson materials, word list, and video transcript.

What is an apostrophe and how is it used properly in punctuation? "Punctuation Made Simple," gives some concrete examples for apostrophe use.

This site from MedicineNet.com provide the reader with great information on the fatal disease of the nervous system known as tetanus. Links are provided throughout for additional information on related subject. The article is fairly...

This article from WebMD provides great information on the third trimester of pregnancy. Denise Chism is the author of this somewhat in-depth article that tells of weeks Thirty-Three to Thirty-Eight, and the finishing touches on the baby.

This lesson plan focuses on the roles of all of the punctuation marks; it provides a video, small practices in various sections, and a punctuation self-check.

Is it it's or its? Learn the basics about apostrophes here!

A short guide on how to use apostrophes correctly.