Humans can only see visible light, but some insects can see ultraviolet light. Through a simulation, pupils explore how we see colors using one bulb. It moves on to demonstrate how we see colors by mixing three different bulbs (red,...

What will viewers see when they watch this video about vision? They will observe RJ and Sam hanging out during a power outage with Rookie, the dog. The boys discuss the structure of the eye (pupil, iris, cornea, lens, retina,...

In this online interactive philosophy worksheet, students respond to 10 short answer and essay questions about An Enquiry Concerning Human Understanding by David Hume.

Human bodies prove evolution thanks to our genes, bones, and more. Learning about specific body parts and how they evolved from other species helps individuals better understand the transition species that helped us become who we are today.

Attracting the right mate is as important for humans as any other species. An interesting lesson teaches individuals about several strategies that animals and plants have adapted to attract their mates. From colorful nests to powerful...

In this online interactive literature learning exercise, students respond to 20 short answer and essay questions about Edwidge Danticat's "Breath, Eyes, Memory." Students may check some of their answers online.

Did you know there are seven Articles and 27 Amendments to the US Constitution? Explore each and every one of them, including the Bill of Rights and other rights around the world, in a super neat US Constitution interactive. 

In this online interactive literature worksheet, students respond to 10 short answer and essay questions about Machiavelli's The Prince. Students may check some of their answers online.

In this online interactive reading comprehension worksheet, students respond to 13 multiple choice questions based on St. Augustine's Confessions. Students may submit their answers to be scored.

In this online interactive literature worksheet, students respond to 9 short answer and essay questions about Willa Cather's O Pioneers! Students may check some of their answers online.

For this online interactive reading comprehension worksheet, students respond to 12 multiple choice questions about Whitman's Leaves of Grass. Students may submit their answers to be scored.

In this United Nations worksheet, students read the article, answer true and false questions, complete synonym matching, complete phrase matching, complete a gap fill, answer short answer questions, answer discussion questions, write,...

In this online interactive philosophy worksheet, students respond to 8 short answer and essay questions about the practice of Kabbalah.

Learn about the human body's own "camera" as you explore the inner workings of the human eye. This resource is displayed as a three-dimensional, interactive animation.

Explore this interactive visual to learn the parts of the eye, what the function of each is, and how they work together to give us the ability to see.

This site has a collection of learning activities, games, experiments, and lesson plans on the five senses. Organized by grade level and topic, this site is packed with an assortment of interactive and engaging activities, that would...

Test your knowledge of the human eye with this interactive labeling exercise.

Take a look inside the human eye in this slideshow of photos, eye diagrams and descriptions that help explain the parts and functions of the eye.