Chromatography

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...

Density comes to life as investigators place soda cans into containers of various liquids to find if they sink or float. They layer different density liquids, compare densities of different gases, and more. A total of six different...

Do not pass this resource by! Everything you need to teach the property of density,and the separation of mixtures is here: an educational video, several classroom handouts, and a laboratory exercise. The video is engaging, though a...

Mix it up at a party as Sam and Zoe discuss heterogeneous and homogenous mixtures and solutions. Follow this film by allowing your class to put together individual snack foods to make their own mixture!

Cricket cookies? Mealworm mac and cheese? Bugs are super nutritious! Why don't we eat them? Viewers discover the history of entomophagy, that is, the practice of eating insects and spiders, by viewing a fascinating video that explores...

Physical and behavioral adaptations are discussed by two teen girls as monarch butterflies flutter by. They also describe the process of natural selection. With colorful animation and relatable teen language, learners are sure to adapt...

Introduce someday scientists to ideas and explanations about how the world around us works by showing this cute cartoon. In it, Mia and Sam discuss what scientific theory is, and how it is important in discovering scientific laws making...

Don't play favorites when separating candy colors. Pupils use the process of chromatography to separate the colors of two different types of candy-coated candies. Class members compare their results to an unknown sample to determine...

Have your class look at a granite specimen and describe what they see. They should note three distinct components. Discuss mixtures with them and how they might be separated, then send them to the lab to figure out how to take apart five...

For this separating mixtures worksheet, learners answer 6 questions about they ways to separate mixtures including using chromatography, using skimming, and pouring off a liquid. Students are given different fractions and their...