Do you know why your veins are blue but your blood is red? Kasey-Dee Gardner finds out what causes the color change.
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Why? Tell Me Why!: Veins and Blood
Do you know why your veins are blue but your blood is red? Kasey-Dee Gardner finds out what causes the color change.
Added: Apr 28, 2008
Views: 8833 Views
Runtime: 01:26
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