A red delicious apple tree with a simple mutation means we now benefit from the existence of golden delicious apples. Learn how simple mutations change genetic information in DNA sequences. Using biographies, videos, and animations,...

Does natural light damage or repair DNA? Learn the answer discover the scientists who researched the topic with an online interactive. Scholars read through an online animation presenting the content at their own pace. Then, they read...

How do jewelers tell the difference between diamonds, glass, and cubic zirconia? A sparkling simulation demonstrates how to use a ray of light to determine the substance and ideal shape for a diamond. Scholars control the material,...

In this light instructional activity, students click on the links in the questions about light to find the answers to the questions and then come back and answer the questions. Students answer 15 questions total.

In this ozone activity students complete an interactive activity on the thinning of the ozone then answer a series of questions on the earths UV rays. 

In this cancer 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, and more...

For this online interactive reflection and refraction worksheet, students respond to 7 multiple choice and fill in the blank questions regarding the information included in the provided paragraphs.

This site from the National Aeronautics and Space Administration provides information on the subject. "An infrared camera sees heat, rather than light. Can you match up the face in the infrared image with the same face in visible light?"