SUMMATIVE TEST IN SCIENCE 6NAME: _______________________________________ GRADE VI- ______ I. Choose the letter of the correct answer.1. Why does the heart have to pump blood?a. to provide the necessary force for the blood to move from the lower to the upper part of the bodyb. to collect all the waste materials from the body cellsc. to exchange the necessary nutrientsd. both a and b2. Which part of the circulatory system carries the nutrients and removes from the body cells?a. arteries b. blood c. capillaries d. heart3. Which of the following is the function of the circulatory system?a. to distribute body cellsb. to protect the body from heat and foreign bodiesc. to distribute oxygen and nutrients to body cells and collect their wastesd. to repair body cells4. How will you describe the heart?a. It is an inflexible organ. c. It works like a pump.b. It is a hollow muscular organ. d. Both b and c5. What will happen to the heart if it was made of bony tissues?a. It will easily break. c. It will not be able to squeeze blood.b. It will pump more blood d. It will not move.6. Why is the heart important?a. It checks the flow of blood. b. It makes the blood move throughout the body.c. It stops the flow of blood. d. It occupies the chest cavity.7. Why is the blood important to the body?a. It gives color to our skin. b. It carries away carbon dioxide and other wastes from the body.b. It carries oxygen and nutrients to different cells of the body. d. Both b and c8. Why are platelets important to the body?a. They carry oxygen to all parts of the body. c. They make the blood clot to stop continuous bleedingb. They give the blood its color red.

d. They surround the germs and weaken them.9. Why do you NOT lose so much blood when you get cut?a. Blood flows through them.b. Blood vessels carry blood away and back to the heart.c. They allow blood and other substances that go with blood to flow through them.d. Blood contains substances needed to clot the blood.10. Why are veins important in blood circulation?a. They carry blood with oxygen away from the heart.b. They carry blood with carbon dioxide towards the heart.c. They make the blood clot.d. The make the blood redder.II. Matching Type: Match the words in column A with those in column B. Write theletter of the correct answer.COLUMN A COLUMN B__________ 11.Anemia a. inflammation of the heart characterized by high fever that__________ 12.Leukemia weakens b. irregular heartbeat the muscles and valves of the heart__________ 13.Hypertension c. cancer of the blood

__________14.Palpitation _________ 15.Rheumatic Fever d. an iron deficiency diseasee. blood pressure suddenly shoots upf. arteries thickens due to deposit offat and cholesterolIII. Fill-in the blanks. Write the correct being describe in each sentence.16. ___________________ is known as “soldiers of the body” because they fight harmful microorganisms that enter our body.17. The blood is also known as the ________________________.18. The heart keeps the blood moving in the body. It acts as a ___________________________.19. The solid parts of the blood are the red blood cells, the white blood cells and the _______________.

20. ___________________ are the passageways of the blood throughout the body.The blood is the red fluid which is composed of 21. ____________ and 22.____________ parts.23. ______________is the liquid part of the blood.24. ______________carries blood away fro the heart.25. _______________allows the essential exchange of wastes, gases, salts, and nutrients from the arteries to the veins