Physics: Concave and Convex Lenses
These sites focus on concave and convex lenses. Learn what they are, how they are different, and how they can help correct farsightedness and nearsightedness. There are also topics on light, prisms, and reflection. Includes simulations of lenses, interactive games, hand-on experiments, lesson plans, and quizzes. There are links to eThemes Resources on Physics: Light, Human Body: Eyes, and Microscopes.
How Stuff Works
This site explains how telescopes, vision, and cameras work. Note: this site contains ads.
BBC: How We See Things
Learn how light and reflection can help us see things. Then take an online activity and a quiz. NOTE: The "Talk" link leads to a discussion forum.
Lens, Light, and Your Eyes
Learn about two types of curved mirrors, how they reflect, and how they help correct farsightedness and nearsightedness.
Optics for kids: The Science and Engineering behind It
Click the "Lens" icon to learn what they are, how they work as magnifying glasses and optics in astronomy as well as space exploration. There are also topics related to lens including light, lasers, and careers in light.
Lenses and Geometrical Optics
Learn how focal points, types of lens, and produced images are interrelated. Scroll down for hands-on activities at the bottom of the page.
An Interactive Lens
View the size of an image when an object is moved closer or farther away from the lens. You can manipulate the curvature radius, refractive index, and diameter.
Science, Optics, and You
This unit covers information about lenses, shadows, prisms, and color. Includes optics timelines, student activities, teacher resources, tutorial, simulations, and more.
Experimenting with a Lens
Learn more how the images look liked when using magnifying glass. Includes an experiment and information about lens.
Scroll down to "Light" and choose online experiments to learn about prism, lens, and color.
Exploratorium: Science Snacks: Laser Jello
Learn about effects of light, reflection, and lens on images.
SuccessLink: Nearsightedness or Farsightedness
Through lab activities, students will learn how images are formed through convex and concave lenses as well as how eyeglasses correct farsightedness and nearsightedness.
eThemes Resource: Physics: Light
These sites are about visible light and the color spectrum. Learn the basic concepts of color theory including the color wheel, additive and subtractive colors, reflection, and refraction. Try the online color blindness test. There is also information about the speed of light and how the eye works.
eThemes Resource: Human Body: Eyes
These sites explain how the eyes work. Learn about all parts of eyes and their functions, how we can see things, and how to take care of your eyes. Includes interactive anatomy, games, online quizzes, and links to eThemes resources on physics of light and the five senses.
eThemes Resource: Science: Microscopes
Learn about the history of the microscope. Find out what organisms can be seen under the microscope's lenses. Learn how many different types of microscope exist today and how to take care of the instrument. Includes photographs, microscopic images, hands-on activities, and an online game.