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Your Safer Source for Science
Since 1977
Your Safer Source for Science
Since 1977
| Address | P.O. Box 219 Batavia, IL 60510 |
| Phone | 800-452-1261 |
| Fax | 866-452-1436 |
| flinn@flinnsci.com |
DC10318
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Why does blood in the veins look blue? Is the blood blue until it comes in contact with air and then it turns red? Does light turn it red?