►This site was originally created for my kids and their cousins, because we did science together. We eventually added more friends and I ended up having science classes for five years. I am no longer adding to the site (since 2014), but will leave it up for others' use. I do post to facebook occasionally if I come across something to share. =)

►Please accept my apology for any broken links or videos that do not work. I am always disappointed when people take down their videos from YouTube. It makes it hard to find just the right replacement. And because the videos were posted years ago, I usually have no recollection of what the video was about.
I kept thinking I would have time after my kids graduated, but life has filled up my free time with new responsibilities. =)

►Please do not email, asking me to post your website link, or to review something to put on my site. Any resources posted on this site are things I had found on my own during my regular searching for material I needed at the time, and liked it well enough to post here. There have never been any affiliates on my site, and as it is no longer active, would not be worthwhile at this point. ;)
Thank you!

Chemistry Dogs!

These dogs are SO well-behaved!

Remember, atoms are called ions if they lose an electron.
Atoms usually have the same number of protons and electrons and have a net neutral charge.  So if an atom loses an electron to another atom, those atoms are no longer "neutral."

Chemical bonds hold atoms together because they share electrons; and those held-together atoms make up a molecule.
(Hydrogen bonds hold water molecules together, and are more easily broken than chemical bonds.)

Polar molecules are molecules in which one side is more negative therefore making the other side more positive.
Water molecules are polar because the oxygen pulls more and gains more electrons (Oxygen and hydrogen still share electrons -- this is what causes the chemical bond -- but the oxygen keeps more of them.)

Water molecules can dissolve substances that have polar molecules or ionic molecules, but not non-polar molecules.

►See diagram of a water molecule.

Aren't they sweet!  =)

No comments:

Post a Comment

Thanks for leaving a comment!
If you choose Anonymous, please leave a first name.