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Science Quiz
Circulatory system and Keeping
Healthy
Work through the below questions, which
are about the recent topics you have
studied in Science.
The answers are at the end too.
Do not write the questions out just the
answers in your book.
Name: __________________
Class:
Year 6
________________________
Date:
27 th^ April
2 020___________________
Q1.
Food and health (a) Damon has a balanced diet. It helps him to keep healthy. Which of the following best describes a balanced diet? Tick ONE box. eating mostly fruit and vegetables eating foods from different food groups taking vitamin pills not eating sweets 1 mark (b) Damon has some ideas about his balanced diet. Write true or false next to each idea below.
1 mark Q2. Medicines and drugs (a) Medicine bottles used to be made of glass. Now they are often made of plastic. Why is plastic a better material to use for a medicine bottle? ....................................................................................................................... ....................................................................................................................... 1 mark (b) Some children had these ideas about medicines. Some of their ideas are not true. Write true or false under each idea about medicines.
(b) Eleven children gave the same answer as each other. Use the tally chart to find out what answer these eleven children gave. ............................................................................................................... ....... 1 mark (c) In a balanced diet, each food group has a special function in the body. Each food below is a good source of something the body needs. Draw THREE lines below to match each food to its special function. 1 mark (d) Nasreen makes a poster to show how to stay healthy. Only some of the ideas on her poster are good. Tick TWO boxes to show the best ideas on the poster below. To stay healthy you should:
- eat lots of fried food.
- eat different kinds of food.
- smoke every day.
- exercise often. 1 mark Q4.
Human life cycle and pulse rate (a) Ella is learning about the human life cycle. She collects pictures of people of different ages. Label the photographs to name stages B and D in the human life cycle. baby ____________ teenage ____________ old age 1 mark (b) Ella wonders if pulse rate is affected by the different stages in the human life cycle. Complete the sentence below about pulse rate. Pulse rate measures how quickly the ____________ pumps blood around the body. 1 mark (c) Ella measures the resting pulse rate of people from each of the life stages. Ella’s test would not be fair if she measured some people’s pulse rates after they were exercising instead of after resting. Explain why.
1 mark (d) The table shows Ella’s results. Stage of the human life cycle Average resting pulse rate (beats per min) A (baby) 135 B 97 C 84 D 72
Q5. Pulse rate (a) Class 6 are learning about the human body. Complete the sentences below using the words in the box. The ............................... pumps blood around the body. The ............................... carry blood around the body. The ............................... protect the heart. 1 mark (b) Your pulse rate tells you how fast your heart is beating. Tick ONE box to show what equipment you could use to workout your pulse rate. ruler forcemeter stopwatch thermometer 1 mark (c) Class 6 have some ideas about pulse rate. Write true or false next to each statement about pulse rate. True or false? Different types of exercise can affect pulse rate by different amounts. ...................... Different people can have different resting pulse rates. ...................... A high pulse rate means the heart is beating fast. ...................... 1 mark (d) Class 6 investigate the effect of exercise on pulse rate. They measure Emily’s pulse rate three times:
- at rest.
- straight after running for 10 minutes.
- after resting for 20 minutes. Look at the table of results below. Some of Emily’s pulse rates are missing. Complete the table of results by predicting Emily’s pulse rates straight after running and after resting for 20 minutes. At rest before running After running for 10 minutes After resting for 20 minutes Pulse rate (heart beats per minute)
1 mark (e) Class 6 think of some questions about the heart and exercise. Tick THREE boxes to show which questions the class could investigate by doing a fair test. Where is the heart found in the body? How does age affect a person’s heart rate? How does the heart work? What does the heart look like? Do tall people have faster pulse rates than short people? Do people who exercise regularly eat more food than people who do not exercise? 2 marks
1 mark (c) This dog has a mass of 30 kg. Predict the heart rate of this dog. Use the table to help you. ...................................................... beats per minute 1 mark Q7. 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 and count the beats in a minute. Method 2: Use an electronic sensor to measure 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 measuring pulse rate than method 1. ........................................................................................................................ 1 mark (b) Jo and Sabia plan an investigation. Their plan is shown below. Plan _1) Record resting pulse rate.
- Run for 2 minutes.
- Record pulse rate again._
_4) Rest for 10 minutes.
- Repeat the test for skipping, dribbling a football and jumping._ Write a question Jo and Sabia could use their plan to investigate. ........................................................................................................................ 1 mark (c) Jo exercises and Sabia records Jo’s pulse rate. Why is it important that the same person does all the exercises during their investigation? ........................................................................................................................ 1 mark (d) The table below shows their results. Exercise Jo’s pulse rate (beats per minute)... before exercise. after exercising for 2 minutes. running 72 163 skipping 72 165 dribbling a football
jumping 75 152 What was Jo’s pulse rate after skipping for two minutes? ..................................................... beats per minute 1 mark (e) Which graph shows what will happen to Jo’s pulse rate if she runs at the same speed for 15 minutes, starting from rest? Tick ONE box.
Q8. Keeping warm and healthy (a) Look at the picture showing the inside of the human body. (i) Put a cross , X , on the organ in the picture that pumps blood around the body. (ii) Name the organ that pumps blood around the body. ...................................................... 1 mark (b) Hassan knows that some activities can affect our pulse rates. Tick TWO boxes below to show the two activities that would increase pulse rate the most. having a rest eating fruit writing a letter playing football going for a walk drinking water 1 mark (c) Tick ONE box to show the usual units of measurement for pulse rate. beats beats per second
beats per minute beats per hour 1 mark (d) Hassan is interested in how temperature affects pulse rate. He measures the pulse rates of 6 children sitting in the playground on a cold day. He then measures the pulse rates of the same 6 children after they have sat in a warm classroom for 10 minutes. Hassan records his results in the table below. Children A B C D E F Pulse rate in cold playground (units)
Pulse rate in warm classroom (units)
Describe ONE thing Hassan did in his investigation so he could be sure of his conclusion. ........................................................................................................................ ....................................................................................................................... . 1 mark (e) Use the table to write a conclusion for Hassan’s investigation. ........................................................................................................................
lighter/less likely to break:
- plastic bottles are easier to transport. ONE _mark may be awarded for:
- plastic is cheaper._ Do not _give credit for an insufficient response:
- plastic is stronger [the plastic may not be stronger]
- plastic is better
- plastic is brown
- it can be recycled._ Do not _give credit for an insufficient response that implicitly refers to glass:
- it will break/smash._ 1(L3) (b) Award ONE mark for all three statements correct: Medicines are not drugs because all drugs are harmful. False Medicines can have bad effects on humans. True If you eat a balanced diet, you will never need to take medicine False 1(L4) [2] Q3. (a) Award ONE mark for:
- 6;
- six. 1(L3) (b) Award ONE mark for:
- (eleven) children said they eat vegetables once a week;
- once a week. 1(L3) (c) Award ONE mark for: 1(L3) (d) Award ONE mark for identifying the two best facts:
1(L4) [4] Q4. (a) Award ONE mark for:
- toddler/infant/child AND
- adult/grown-up ONE mark may be awarded for: - middle age - man Do not give credit for an insufficient response describing an adult as a parent: - dad 1 (b) Award ONE mark for: Pulse rate measures how quickly the heart pumps blood around the body. 1 (c) Award ONE mark for a recognition that the test will be unfair because exercise increases pulse rate or a control variable has not been controlled, for example:
- if they have been exercising the pulse rate will be faster
- their pulse rates will be higher than they should be after exercising
- the people being tested haven’t all done the same thing ONE _mark may be awarded for:
- pulse rate is affected by exercise_ Do not _give credit for an insufficient response, for example:
- she will be measuring the pulse rates under different conditions [given]
- the test will be unfair [given in the lozenge the test will not be fair]_ 1 (d) Award ONE mark for a response explaining how the result for old age does not fit the pattern, for example:
Different types of exercise can affect pulse rate by different amounts True
- Different people can have different resting pulse rates True
- A high pulse rate means the heart is beating fast. True 1 (d) Award ONE mark for both pulse rates within the acceptable ranges: After running for 10 minutes:
- 95 - 190 (inclusive). After resting for 20 minutes:
- 90 ONE mark may be awarded for the correct accepted range given in ‘after running for 10 minutes’ and for: After resting for 20 minutes: - 85 – 95 (inclusive) [95 may not be accepted if given as the 'after running' rate]. Do not give credit for a response that includes incorrect science in which the ‘after resting’ rate given is the same or greater than the ‘after running’ rate. (e) Award TWO marks for the correct three questions ticked: Where is the heart found in the body? How does age affect a person’s heart rate? How does the heart work? What does the heart look like? Do tall people have faster pulse rates than short people? Do people who exercise regularly eat more food than people who do not exercise? Deduct one mark for each incorrect question ticked. 2
or If you are unable to award two marks, ONE mark may be awarded for any two questions correctly ticked. 1 Q6. (a) Award TWO marks for all three correct responses: (i) squirrel (ii) 7 kg (iii) 205 beats per minute. 2 or If you are unable to award two marks, award ONE mark for any two correct responses. 1 (b) Award ONE mark for a general comparison describing the relationship between the mass of the animal and the heart rate :
- the heavier the animal, the slower its heartbeat
- the lighter the animal, the higher its heart rate ONE mark may be awarded for two specific comparisons describing the relationship: - the heaviest animal has the slowest heart rate and the lightest animal has the fastest heart rate. ONE mark may be awarded for a comparison describing the relationship between the size of the animal and the heart rate: - the bigger the animal, the slower/lower the heart rate. Do not give credit for a response that changes a variable: - the heavier the animal, the shorter/smaller the heartbeat [incorrect science]. Do not give credit for an insufficient response giving a single comparison of the variables: - the heaviest animal has the slowest heart rate. 1 (c) Award ONE mark for an answer that is greater than 70 and less than 130 beats per minute, including decimals/fractions. 1 [4] Q7.
