SCIENCE-1-2 - Chapter 3: Moving and changing materials - Worksheet 3.13

Sep 5, 2026

Worksheet 3.13 focuses on the heart’s function, blood flow routes, and key structures such as atria, ventricles, arteries, veins, and valves. Learners complete sentence stems about pumping blood around the body, higher pressure in arteries, and one-way movement through valves, then map terminology onto a labelled heart diagram. Additional tasks compare the cardiac cycle in humans and structural differences between fish and human hearts, including why the left ventricle has a thicker wall.

LanguageEnglish

CategoryExam

FormatPDF

Pages4

Reading Time10 min

AccessFree to download

Chapter 3: Moving and changing materials

Exploring the heart: Worksheet 3.13

The function of the heart

My journey as a red blood cell

The heart

The cardiac cycle

Chapter 3: Moving and changing materials Exploring the heart: Worksheet 3.13 1 The function of the heart Complete the sentences. The function of the heart is to pump ................................ .......... around the body. The right side of the heart pumps blood to the ................................ ........ . The left side of the heart pumps blood to the rest of the ................................ ...... . Blood in the arteries is under higher ................................ ...... than blood in veins. Blood flows from areas of ................................ ... pressure to areas of pressure. 2 My journey as a red blood cell Choose from the following words to complete the sentences below. aorta atrium atrium away lungs oxygen pressure pulmonary artery pulmonary vein valves vein vein ena cava ventricle ventricle I am a red blood cell. I carry ................................ ............ to all the cells in the body. I like travelling in arteries – I get pushed around so fast. This is because the blood in arteries goes................................ ...................... from the heart , so it is under high I return to the heart in a ................................ ........ . I have to get through ................................ ............ , which are like a one-way door. I return in a large ................................ ............................. called the ………………………………. .. I enter the right ................................ ......................... of the heart. Muscles contract and squeeze me into the right ................................ ......... . This chamber then contracts, forcing me out of the heart through the ................................ ........... . This takes me to the ................................ ........ , where I pick up oxygen. I go bright red! I return to the heart in the ................................ ............ and go to the left This then forces me into the left ................................ .................. . This chamber is the most powerful part of the heart. I am then forced out in the main artery called the ................................ .......... . AQA GCSE Biology: Trilogy: Teacher Pack © HarperCollinsPublishers Limited 2016 Chapter 3: Moving and changing materials 3 The heart 1. Label the diagram of the heart. Use the words in the box to help you. | aorta
pulmonary artery | pulmonary vein
vena cava | left atrium
right atrium | left ventricle
right ventricle | | --- | --- | --- | --- | 2. Name the part of the heart that pumps blood to the lungs. 3. Name the part of the heart that pumps blood to the body. AQA GCSE Biology: Trilogy: Teacher Pack © HarperCollinsPublishers Limited 2016 Chapter 3: Moving and changing materials 4. Name the part of the heart that receives blood from the body. 5. Name the part of the heart that receives blood from the lungs. 6. Explain why the left ventricle has a thicker wall than the right ventricle. ................................ ................................ ................................ ................................ ............. AQA GCSE Biology: Trilogy: Teacher Pack © HarperCollinsPublishers Limited 2016 Chapter 3: Moving and changing materials 4 The cardiac cycle 1. The diagram shows a section through a human heart. Describe the stage of the cardiac cycle that is shown by the arrows in the diagram. ................................ ................................ ................................ ................................ ............. ................................ ................................ ................................ ................................ ............. ................................ ................................ ................................ ................................ ............. 2. The diagram shows a section through a fish heart. Describe how and why the s

FAQs

What is the function of the heart in this worksheet?

The heart’s function is to pump blood around the body. It pumps blood to the lungs and then to the rest of the body.

Why does blood move from areas of higher pressure to lower pressure?

Blood flows from areas of higher pressure to areas of lower pressure. In this worksheet, arteries are described as having higher pressure than veins.

Why does the left ventricle have a thicker wall than the right ventricle?

The left ventricle has a thicker wall because it must pump blood to the body, which requires stronger force than pumping blood to the lungs.

Sep 5, 2026

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