Who told you that blood is blue when it's in your body and turns red when it hits the outside air?
Were they right or wrong?
Let's use the following sources to check our facts.
Use the internet gizmo to help you decide if the source is a valid source.
Visit Wonderopolis Wonder #519 using this link:
http://wonderopolis.org/wonder/if-blood-is-red-why-are-veins-blue
Visit Ask a Biologist using this link:
http://www.askabiologist.org.uk/answers/viewtopic.php?id=2043
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Use the following books:
How Our Blood Circulates by Merce Parramon
The Heart by Seymour Simon
Use the white poster paper provided to create your presentation poster answering the question.
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