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Elementary School: 3rd, 4th & 5th Grade
Science
Circulatory System 1
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Q.1
Which of the following, about capillaries, is NOT true?
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Substance exchange in cells and blood takes place here
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They are too small to see without a microscope
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They connect arteries to veins
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They have thick walls
Q.2
Which of the following is not part of the circulatory system?
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Arteries
0%
Capillaries
0%
Lungs
0%
Veins
Q.3
Which of the following is not a function of the arteries?
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To carry blood away from the heart
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To carry blood into the heart
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To supply food to the cells
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To supply oxygen to the cells
Q.4
Which of the following is not a component of blood?
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Plasma
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Plates
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Red blood cells
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White blood cells
Q.5
Which of the following statements about arteries is NOT true?
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Substances can pass through their walls
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They carry blood away from the heart
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They have a thick wall containing muscle
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They have no valves
Q.6
The veins from the body enter the heart with .......
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deoxygenated blood
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food
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oxygen
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oxygenated blood
Q.7
Which of the following is not true about the ventricles of the heart?
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They are the lower chambers of the heart
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They are the upper chambers of the heart
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They have more muscle than the atria
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They pump blood
Q.8
Which of the following, about veins, is NOT true?
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Substances cannot pass through their walls
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They carry blood to the heart
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They have no valves
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They have thin walls
Q.9
The main organ in the circulatory system is the .......
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brain
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heart
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liver
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lungs
Q.10
Which of the following is not a function of the veins?
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To carry blood away from the heart
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To carry blood into the heart
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To carry carbon dioxide away from the cells
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To carry waste away from the cells
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