Your blood travels through your body very quickly. You probably already know that you can place your finger on certain points – like the radial artery in your wrist – and count the beats of your heart as it pumps blood throughout your body.
In this experiment, we will explore other ways to amplify your blood’s movement so that you can actually see a visual representation of it.
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No – any should work fine.
Do you have to have a straw that small?