Getty Images
Insect in travertine pools with audio/sound
Insect in travertine pools of Pamukkale, Turkey.
Getty Images
Lime water test for carbon dioxide. Carbon dioxide gas bubbling through lime water (calcium hydroxide solution), which turns milky as the gas reacts to form a precipitate of calcium carbonate
Lime water test for carbon dioxide. Carbon dioxide gas bubbling through lime water (calcium hydroxide solution), which turns milky as the gas reacts to form a precipitate of calcium carbonate
Bloomberg
The Green Tech Bringing Life Back to the Sea
Aug.08 -- Concrete is vital for protecting our coastlines - but it comes at a huge environmental cost. An Israeli startup has found a way to make concrete sea defenses that get stronger over time, while encouraging life to thrive. (Video...
American Chemical Society
How Seashells Are Made
What do chalk and seashells have in common? They are both primarily calcium carbonate! Learn how sea creatures use crystalline structure to their advantage as they build their shell homes. An installment of a larger series on reactions...
TED-Ed
What if Cracks in Concrete Could Fix Themselves?
Concrete, heal thyself! A fascinating video describes the self-healing properties of concrete, known as autonomous healing. Pupils also learn about ways that engineers try to make concrete more resistant to cracks, such as by adding...
JFR Science
Solubility and Reactions in Solution: How Does My Water Softener Work?
What is soap scum, and why does it form? Explore hard versus soft water with a video from JFR Science. The narrator explains why someone might have hard water, the factors that affect ion solubility, and how a water softener addresses...
Fuse School
Limestone Cycle - Limestone, Quicklime and Slaked Lime
Calcium rocks! Well, in this case, calcium carbonate is a little more accurate. Part four in a series of seven, the video describes how the seashells of ages past compressed to form one of Earth's most useful sedimentary rock resources....
Fuse School
Hard and Soft Water
What does it mean to have hard or soft water? Learners discover the chemistry behind water hardness in the fifth video of a seven-part series describing our water resources. Using simple animations and balanced chemical equations, young...