2. Calcium is used in milk, removes unwanted surfaces, manufactures glass bulbs, and makes alloys.

3. Calcium is in the Alkaline Earth Metal family.Other elements in its family are Beryllium, Magnesium, Strontium, Barium, and Radium.It’s found in caves around water.

4. Characteristic Properties The atomic number for calcium is 20 and the atomic mass is 40.08. The melting point is 850°C and the boiling point is 1440°C. The density is 1.55g/cm 3.

5. Descriptive Properties Calcium is a soft silvery colored metal that reacts with other elements to form a compound.Yet, calcium is soft and is very stable.

6. Other Uses Calcium is used in milk,it removes any unwanted surfaces, it also manufactures glass bulbs, and makes alloys.

7. Calcium has many nutrients, vitamins, and minerals that help the bones stay in place.

8. Other elements used in bones are Phosphorus, Magnesium, Silicon and Boron. Without them, the bones can’t survive. Other elements used in bones

9. Farndon,John, The Elements of Calcium, Benchmark books,New York,2000,pages 14-15 Newton,David, Chemical Elements volume 1,U.X.L, Farmington Hills,Missouri,1999,87-97 Knapp,Brian,Calcium and Magnesium,Grolier,1996, 4-51 Bibliography