Science worksheets for class 2
Access printable science worksheets for class 2
The _________system carries oxygen and nutrients to all parts of our bodies?
respiratory
circulatory
What is the main organ of our circulatory system?
heart
skin
The heart is about the size of your ________.
brain
fist
What do we call the movement of blood through the heart and around the body?
circulation
digestion
What do we call the tiny tubes that carry blood AWAY from the heart?
valves
arteries
What do we call tiny tubes that RETURN oxygen poor blood back to the heart?
veins
ventricles
What do we call the smallest blood vessels in our bodies?
capillaries
cells
The part of the blood that helps you stop bleeding when cut yourself is called _____________.
red blood cells
platelets
The part of the blood that carries oxygen is called ___________. (Remember we can't live without our blood-line)
red blood cells
white blood cells
The part of the blood that fights off harmful bacteria and viruses is called _______________.
red blood cells
white blood cells
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