2. By: Alexandra Nictakis Period: Science - 1st

3.  Category- Alkaline Earth Metals  Density- 2.64 grams per cubic centimeter  Reactivity- When combined with oxygen it acts like rust, but when it is combined with carbon it is used in common household items

4.  Melting Point: 777 degrees Celsius or 1431 degrees Fahrenheit  Boiling Point: 1382 degrees Celsius or 2520 degrees Fahrenheit  State of matter: Solid  Atomic Mass: 87.62

5. Discovered by: Adair Crawford Discovered in: 1790 How: A mineral sample in a mine Other Fact: It was named after the village it was first found in, Strontian, Scotland.

6.  Use 1: It is used in glow-in-the-dark paints  Use 2: Sensodyne toothpaste  Use 3: Bone-building supplements  Use 4: Fake diamonds  Use 5: Fireworks/Flares

7.  Works Cited  Baker, Lawrence W., and David E. Newton. P - Z. Detroit, Mich. [u.a.: U.X.L, 1999. Print.  "EnviromentalChemistry.com." Periodic Table of Elements: Sorted By Crystal Structure. N.p., n.d. Web. 10 Dec. 2008..  "It's Elemental - The Element Strontium." Science Education at Jefferson Lab. N.p., n.d. Web. 9 Dec. 2010..  "Periodic Table." Behrend Chemistry Home. N.p., n.d. Web. 9 Dec. 2010..  "Periodic Table." Behrend Chemistry Home. N.p., n.d. Web. 2 Dec. 2010..  "The Photographic Periodic Table of the Elements." The Photographic Periodic Table of the Elements. N.p., n.d. Web. 2 Dec. 2010..   MLA formatting by BibMe.org.