Angel International School - Manipay

Transcription

1 c Grade 06 Angel International School - Manipay 3 rd Term Examination July, 2016 SCIENCE Duration: 02 Hours Index No:- PART I I. Underline the correct answer 1. How many times does the heart beat in one minute in an adult? A. 27 B. 53 C. 72 D Which disinfectant is used to kill germs in water A. helium B. chlorine C. sodium chloride D.calcium chloride 3. How much electrical energy is supplied to the factories A. 230V B V C. 250V D V 4. Unit of electrical energy is called A. kilowatt hours B. kilometer C. kilogram D. Newton 5. What is the formula is used to work out the current used by an appliance A. power x time B. power / voltage C. mass / volume D. power x voltage 6. Which was the first vitamin to be found A. vitamin C B. vitamin B C. vitamin B1 D. vitamin A 7. What are formed when lava and ash are thrown violently from the earth A. earth quake B. magma C. rocks D. volcanoes 8. What are the elements in carbonates 9. A. hydrogen & oxygen B. carbon& nitrogen C. carbon& oxygen D. sodium & chlorine What happens when you bring north pole & south pole of the magnets together A. repel B. attract C. pull away D. move away 10. Underline the air filled insulator 1

2 11. Which part of the excretory system stores urine A. bladder B. left side kidney C. right side kidney D. ureter 12. Cod liver oil can cure.. A. scurvy B. night blindness C. rickets D. beri-beri 13. Why is there silence on the moon A. no water B. no land C no atmosphere D. all are wrong 14. Which is the instrument that used to keep the room temperature steady A. thermostat B.thermometer C.compass D. spring balance 15. Which is the following that does not have engine A. aeroplane B. helicopter C.car D. glider (15 Marks) II. Fill in the blanks ( 230, Astronaut, 16, husks, cameras, plasma, vinegar, red blood cell, acid, plaque, silver, white blood cell, friction, retina, magnesium ) 1. RBC means 2... help to fight infection. 3. When we leave some blood to settle,the pale yellow liquid is called When we eat a food, a sticky substance called forms on our teeth. 5. Tyres grip the road by 6. Rice loses its vitamin B1, when we polish it. Because there are on.. in it. 7. The distance control & The aperture control are found on most 8.. carries a small refrigerator on his back to prevent over heating contains the nerve cells. 10. Copper &...are the best heat conductors. 11. Each jaw has. teeth in it. 12. Electrical energy is supplied to our homes at.. Volts reacts slowly with water and quickly with acid. 14. Water, air and are three of the most common corroding chemicals is made up of acetic acid dissolved in water. (15Marks) 2

3 III. Matching (A)Benedict s solution (B) solution (C)Biuret reagent (D)Grind the margarine with ethanol I. testing a piece of bread for starch II. testing margarine for fat III. testing egg white for protein IV. testing a sweet for glucose (04 Marks) IV. Name the teeth A A B C.. D.. B C D Part II 1. Label the parts of the excretory system P R Q S (1 1 2 Marks) P Q. R S. 3

4 2. Look at the diagram and answer the following questions. 1. Where was the bicycle after a. 2min b. 7min c. 16min 2. Suggest why the current dropped a. On church rise b. On high street (2 1 2 Marks) 3. The shape of animals teeth can be different because they eatdifferent things. Canine Molars Lion Cow A lion has long, sharp canine teeth for eating meat. (i) How do canine teeth help the lion to eat meat?... A cow has large, flat molar teeth for eating grass. (ii) How do molar teeth help the cow to eat grass?... 4

5 4.Investigating pulse rate (a) Jo and Sabia are finding out about pulse rate and exercise. Their teacher tells them two ways they can measure pulse rate. Method 1: Feel the pulse in your wrist andcount the beats in a minute. Method 2: Use an electronic sensor tomeasure the pulse rate. Jo says, Method 2 is better because it gives results more quickly. Give ONE other reason why method 2 is better at measuringpulse rate than method 1.. (01 Marks) Plan 1) Record resting pulse rate. 2) Run for 2 minutes. 3) Record pulse rate again. 4) Rest for 10 minutes. 5) Repeat the test for skipping, dribbling a football and jumping. (b) Jo exercises and Sabia records Jo s pulse rate. Why is it important that the same person does all the exercisesduring their investigation?... The table below shows their results. (01 Marks) Exercise Jo s pulse rate (beats per minute)... Before exercise after exercise Running Skipping dribbling afootball jumping What was Jo s pulse rate after skipping for two minutes?... beats per minute(01 Marks) Which graph shows what will happen to Jo s pulse rate if sherunsat the same speed for 15 minutes, starting from rest? Tick ONE box 5 (01 Marks)

6 5. Human body (a) Rohan is wearing an apron showing different parts of the body. (i) Tick ONE box to show which body part is the heart and the lungs. (ii) Describe the function of the heart in the human body. Rohan thinks about other parts of the human body. Which of these things would do most damage to the lungs? Tick ONE box. drinking alcohol smoking cigarettes eating fatty food not exercising (01 Marks) (c) Why does brushing teeth help to reduce tooth decay?... (01 Marks) (d) Complete each sentence using a word from the box below it. (i) The skeleton is moved by the...whenthe body moves. (ii) The bones in the skeleton are...so thatthey can support the body. Legs arms bones muscles Straight long rigid curved (02Marks) 6

7 6. (A) Fill this chart. Vitamins Diseases Food that is taken to cure 1. A Ox liver 2. scurvy 3. B1 4. D rickets (06Marks) (B) Draw the picture of magnetic field. (C) Fill this chart Different kinds of food jobs Examples(food) 1. carbohydrate bread 2. Builds up new tissues & cells Milk, egg 3. vitamins 4. Minerals calcium & phosphorus (06 Marks) 7. (A) Work out the power (in kw) of a) T.V w b) hair drier How many units are needed to run a. a 6 kw bar fire for 8 hours 250w b. an electric kettle for 2.5 hours 2kw 3kw 500w 250w 500w 4kw 600w (04 Marks) 7

8 (B) How does your body lose water? (C) Give some uses of hydrogen? Look at the picture and answer the following questions. a. Write down 3 things which could affect the strength of an electromagnet (1 1 2 Marks) b. Draw and complete the graph on the right for iron coiled magnets only with 20 turns of coil.(graph sheet will be given) (4 1 2 Marks) 8

9 9. (A)Find out the job of the following (03Marks) (B) Differentiate 3 points between glucose and starch Glucose Starch 1. Molecules are big 2. Dissolves easily 3. Can t get through intestine (03Marks) (C) Fill in the blanks Moving, down, u, meter, current, magnet, magnetic, wire, It s quite easy to generate electricity in the lab. All you need is a shaped.. and a loop of wire. To generate the electricity, you have to supply.. energy. You must move the wire up and...between the magnet s poles. To show that a current is flowing, you have to connect in a. it will give a tiny reading, but only while the. is moving. This experiments shows that : a flows while a conducting wire is being moved through a field. (08Marks) 9

10 10. Answer the following question by looking the diagram. 1. What are the transmission cables made of and why? 2. What is the transformer s job? What is the difference between a step-up transformer and a step down one? 3. Which of transformers 1-5 in the diagram are step-up and which are stepdown?.. (3 2=6Marks) ***** 10