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Anne Marie Helmenstine, Ph.D.

Anne Marie's Chemistry Blog

By Anne Marie Helmenstine, Ph.D., About.com Guide to Chemistry

Calcium Facts

Wednesday June 9, 2004
Calcium isn't found free in nature, but it can be purified into a soft silvery-white metal. Calcium is the 5th most abundant element in the Earth's crust, present at a level of about 3% in the oceans and soil. The element is essential for animal and plant nutrition. Calcium participates in many biochemical reactions, including building skeletal systems and moderating muscle action.
More About Calcium | Periodic Table & The Elements

Comments

October 21, 2008 at 8:41 am
(1) elizabeth says:

this is sooooooo kool!!

November 30, 2008 at 4:48 pm
(2) Hannah says:

this is gay…

i have to do a stupid project on this!

January 7, 2009 at 11:05 am
(3) Alexis says:

who the hell cares about this…

January 14, 2009 at 8:27 am
(4) Haley says:

This doesnt help my problem

March 1, 2009 at 9:17 pm
(5) Somebody says:

That’s interesting! Thank you for sharing this :) I never knew it could be turned into a metal!

March 5, 2009 at 2:44 pm
(6) Jose Reyes says:

i really like this website so i hope u keep writing info becasue i need more so can u plz b4 i get a F as a grade i cant get that my mom will be very upset >:0 /:p

May 21, 2009 at 7:47 pm
(7) julia says:

ya I have to do a project to, but whatever. its important to know bout these things. Thanks for the info!

June 2, 2009 at 1:19 pm
(8) your mother says:

thank your this helped soo much

June 21, 2009 at 2:45 am
(9) holly says:

Thanx soooooooooo much!

I gotta do a dumb project too!

September 20, 2009 at 12:50 pm
(10) jon says:

ye this is well cool

September 27, 2009 at 12:02 pm
(11) Madeline says:

This is just the right stuff for a project i am doing anyone else have a web site for me where i can find facts about my element Calcium

October 7, 2009 at 9:25 am
(12) abby says:

HAHAHAHAH MIKE TOOK MY ELEMENT!!!! POTASSUIM!

October 28, 2009 at 9:42 am
(13) kyera says:

this is a good project to do and i love to do healtj

November 4, 2009 at 5:06 pm
(14) Mike says:

I hate this this doesn’t help me

November 4, 2009 at 8:55 pm
(15) jennifer says:

this is a lot of help….but….can you put more info about calsium

November 19, 2009 at 4:33 pm
(16) alexis says:

i love calcium because it is in chocolate milk!! =)

November 21, 2009 at 5:29 pm
(17) evy says:

i gotta do a projest on dis 2….. n its complicated.& i hate atoms now>:(

November 22, 2009 at 8:18 pm
(18) tabitha says:

thanxs for the help StUpId project

November 27, 2009 at 1:49 pm
(19) Pamella Kruse says:

this is a cool website :)

November 29, 2009 at 9:09 pm
(20) ben says:

jeez why you people think its stupid? sure i have to do a project on it even tho i dont want to, but cmon id rather be familiar with this then be a dumbass. And no im not a nerd i hang out with my friends and play videogames.

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