Calcium Carbonate
Calcium carbonate is a chemical compound with the formula CaCO3. It is commonly found in rocks, shells of marine organisms, snails, coal balls, pearls, and eggshells. It is the main component of pearls and the shells of marine organisms, snails, and eggs.
Properties of Calcium Carbonate
- Chemical Formula: CaCO3
- Molar Mass: 100.0869 g/mol
- Appearance: White powder or colorless crystals
- Solubility: Insoluble in water
- Common Uses: Calcium carbonate is used as a dietary supplement, antacid, filler in plastics, and in the production of lime and cement.
Formation of Calcium Carbonate
Calcium carbonate is formed through the reaction of calcium ions (Ca2+) with carbonate ions (CO32-) in water. This can occur in marine environments where marine organisms use calcium and carbonate ions to build their shells and skeletons. Over time, the accumulation of these shells and skeletons forms limestone, a common rock containing calcium carbonate.
Study Guide
Here are some key points to remember about calcium carbonate:
.◂Science Worksheets and Study Guides Second Grade. Hands-on lab skills/Science Inquiry
Study Guide
Hands-on lab skills/Science Inquiry 
Worksheet/Answer key
Hands-on lab skills/Science Inquiry Worksheet/Answer key
Hands-on lab skills/Science Inquiry Worksheet/Answer key
Hands-on lab skills/Science Inquiry Vocabulary/Answer key
Hands-on lab skills/Science Inquiry
Worksheet/Answer keyWorksheet/Answer keyWorksheet/Answer keyVocabulary/Answer keyThe resources above cover the following skills:
PHYSICAL SCIENCE (NGSS)
Matter and its Interactions
Students who demonstrate understanding can:
Plan and conduct an investigation to describe and classify different kinds of materials by their observable properties.
Analyze data obtained from testing different materials to determine which materials have the properties that are best suited for an intended purpose.