Grade 6 Science & Technology · Strand 1: Living things and the Environment · Human Circulatory System
Revision and Comprehensive Assessment
A short Grade 6 Science & Technology lesson for the CBE curriculum, part of Living things and the Environment: Human Circulatory System. Learn it on any phone with notes and slides, then check yourself with a quick quiz and earn XP. This lesson is free.
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5 questions from this lesson’s quiz. Start the lesson to answer them and see the right answers.
1. Which chamber of the heart pumps oxygenated blood under the highest pressure into the aorta?
- A. Left atrium
- B. Right ventricle
- C. Left ventricle
- D. Right atrium
2. Which statement about blood vessels is correct?
- A. Veins have pocket valves that stop blood flowing backwards
- B. Arteries carry blood into the atria at low pressure
- C. Capillary walls are several cells thick to protect the blood
- D. Pulmonary veins carry deoxygenated blood to the lungs
3. Wanjiru says, 'All arteries carry oxygen-rich blood.' Which example shows she is wrong?
- A. The aorta, which carries blood to the body
- B. The pulmonary artery, which carries blood from the right ventricle to the lungs
- C. The pulmonary vein, which carries blood from the lungs to the left atrium
- D. The vena cava, which carries blood to the right atrium
4. What is the main function of platelets in human blood?
- A. To carry oxygen around the body
- B. To form clots and stop bleeding
- C. To engulf harmful germs
- D. To transport urea and hormones
5. Name the blood vessel that carries oxygen-rich blood from the lungs to the left atrium of the heart.
Type your answer in the lesson.
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