All mollusks build their own shells, whether they live in water or on land. Creatures like snails, clams, oysters and mussels use an organ called a mantle to secrete layers of calcium carbonate ...

then crushed oyster shells and ground clam shells are a good solution. Made of calcium carbonate, these shells release their nutrients into the soil slowly but consistently over time. Experts ...

Calcium carbonate is everywhere. From seashells to eggshells to antacid medicine, it is one of the most abundant minerals on our planet. But scientists still don’t agree on how it forms its many ...

Along with composting, eggshells can boost plant health, deter pests, and even suppress weeds—offering a sustainable way to ...

In this activity, you can use a common liquid to detect calcium carbonate! Cover your work surface with newspaper or paper towels. Place some egg shell and an antacid tablet on your work surface. Use ...

Ocean acidification can negatively affect marine life, causing organisms' shells and skeletons made from calcium carbonate to dissolve. The more acidic the ocean, the faster the shells dissolve. By ...