New ReviewDrosophila includes more than 1,500 species and often find themselves studied by geneticists. A scientist presents a lecture on one example of these studies on the paintbrush gene. The gene determines the amount and color of pigment on...

Why so blue? As it turns out, very few things in nature only reflect blue light! A short video from a comprehensive science playlist highlights the beautiful blues of butterflies, birds, and human eyes. The narrator shows how adaptations...

Filters provide amusing changes to images in applications other than just Instagram! High school pupils apply their knowledge of colored filters to three different interactive sets of puzzles. They identify light colors that pass through...

Objects contain pigments that selectively absorb a wavelength of light, and our eyes only observe a very small range of these wavelengths. Scholars apply these two facts to three different activities. They identify the pigment in an...

Is our skin color determined only by genetics? Explore skin science through a video and related interactive. Young biologists discover the cells of the epidermis, how melanin is made, and the factors that influence the outward appearance...

Colorful lead compounds never fail to impress! Solubility scholars examine a series of double replacement reactions involving lead nitrate and record their observations. The second part of the experiment illustrates the differences...

Discover the scientific explanation of fall leaves! The lesson narrator describes the role of chlorophyll, glucose, and weather in the process of the color-changing process. He adds an overview of carotenoids and flavonoids to explain...

Is there really more than one black? Although your crayon box may tell you otherwise, some blacks are, well, blacker than others! Discover the cutting-edge technology at work to produce the blackest black possible with a video from the...

Redheads have genetic modifications that affect their pigmentation; however, the differences don't stop there!  Use the video lesson from the ACS Reaction series to examine different traits specific to redheads. Learners consider the...

Talk about weird science! Young biologists discover the amazing structures found in the skin of male chameleons during a video from Veritasium. The narrator discusses common myths about chameleon color change, what triggers the...

Genetic variation makes for stronger species, but for a mammalian species, humans are disturbingly closely related. Help your class explore human ancestry and genealogy using the 15th video in a 16-part series. It describes how we became...

Things are not always as they appear. The morpho butterfly appears to have blue wings, but they don't contain a drop of blue pigment. Learners watch as the instructor explains the physics behind these amazing blue wings.

Why do leaves change color in the fall? The video explains the relationship between chlorophyll and light, connects the concepts of light to photosynthesis, relates the visible color spectrum to electromagnetic radiation. 

Zounds! Who'da thunk it? Colors can be deadly. Viewers learn about the dangers of white (lead), green (radium and cupric hydrogen arsenic), and orange (uranium oxide) pigments used in clothing, ceramics, and home decor.

Dry erase markers work on desks, doors (made of shiny particle board), and even mirrors! A funny video explores why dry erase markers leave behind marks when used. The narrator explains what the markers are made of, specifically the...

The composition of teeth are such that when exposed to a black light, they absorb the UV light and glow! A radical video explores how different objects glow in the dark. The narrator discusses how different types of chemicals, called...

Use food coloring in electrophoresis. The last segment in a four-part series mimics DNA fingerprinting by using chromatography. Teams conduct chromatography on food coloring to find colors that use similar pigmentation in their makeup.

Show your class why restrictions aren't always a bad thing. In the third segment of a four-part series, the instructor develops the idea of restriction enzymes. Pupils learn how scientists use restriction enzymes in DNA analysis and DNA...

You matter, unless you multiply yourself by the speed of light ... then you energy. Presentation covers the behavior of light as both a wave and a particle, light versus sound, space travel, why objects have colors, depth perception,...

Where does bad light end up? In a prism! The presentation covers light, mirrors, lenses, and the structure of the eye. It also provides explanations of reflection, refraction, concave and convex mirrors and lenses, and a comparison of...

Why do soybean plants that are planted weeks apart in the spring mature simultaneously in the fall? Four independent activities cover the history of phytochrome research, scientist collaboration, the electromagnetic spectrum, and...

Why does some ink bleed through paper, and other ink doesn't? Practice some paper chromatography to separate the colors from a pen with an interactive experiment for middle and high schoolers. Learners use a variety of solutions to track...

Why are there so many different skin colors? Check out the science and the anthropological theories used to explain the rich palette of human skin colors as presented in the short video.

How can tattoos be permanent if humans shed over one million skin cells per day? Here's a short, animated video that answers this essential question and provides everything you want to know about the history of tattooing, tattoos and...