Calcium (Ca) is a vital element in life and health on Earth. A silvery white metal, calcium is a strong builder, from bone structure to...

Green algae are simple life forms with amazing impact on the environments of Earth. Algae can be grown at home for microscopy, biology...

Copper (Cu) and its warm golden red hue is part of humanity. It's one of the most important metals of alchemy , aids plant health and is...

Iodine (I) is an essential element in biology, industry, science and health. It's known for its intense violet gas and strong odor....

Cornstarch, also called corn flour, is a common ingredient worldwide. A fine, white powder processed from endosperms of corn kernels,...

Bacteria are responsible for millions of vital processes hidden from our everyday perception. These single-celled organisms are essential...

Spices come from distant lands along ancient trade routes. These commodities bring flavor to food, health and beauty to consumers and...

Renaissance herbal recipes focus on health and medicine, but can also include dyeing, coloring and pigment making. Botanical knowledge...