PencilGo

Grade 7 · Science

7th grade The heart, vessels and blood flow worksheet

6 printable versionsOn Level10 questions · answer keyFree · no account

Level: Building Confidence · On Level · Challenge Me

When it’s done, scan the sheet with your phone and PencilGo marks it and picks the next one. Create a free account

Version
Print

The heart, vessels and blood flow

Grade 7 Science Worksheet

NameDate

Circle the best answer.

  1. Bo's path reads: lungs → left atrium → ? → body. What fills the blank?

    • Right ventricle
    • Lungs again
    • Left ventricle
    • Right atrium

  2. Esme's path reads: left ventricle → body → ? → right ventricle. What fills the blank?

    • Right atrium
    • Left atrium
    • Lungs
    • Left ventricle

  3. Read this first

    Numbered path, not to scale

    1 body → 2 right atrium → 3 right ventricle → 4 lungs → 5 left atrium → 6 left ventricle → 7 body.

  4. Blood in the left ventricle is oxygen-rich. Where did it just come from, Jun?

    • The body
    • The stomach
    • The right ventricle
    • The lungs

  5. Why is the left ventricle's wall thicker than the right's, Kira?

    • It stores extra blood
    • It pumps blood around the whole body
    • It makes oxygen
    • It pumps blood just to the lungs

  6. Which side of the heart holds oxygen-poor blood, Luz?

    • Neither side
    • The left side
    • The right side
    • Both sides equally

  7. During Milo's run, leg muscles need oxygen. Where does oxygen leave the blood and enter the muscle cells?

    • In the big arteries
    • In the heart
    • In the capillaries
    • In the veins

  8. Why are capillaries good places for things to pass between blood and cells, Noah?

    • They have no blood in them
    • Their walls are one cell thick
    • They are as wide as arteries
    • Their walls are the thickest in the body

  9. Ren bikes up a hill, and the heart beats faster. Why does it beat faster?

    • To skip the lungs
    • To send less blood to the muscles
    • To send more blood to the muscles
    • To make more oxygen in the heart

  10. During a race, vessels to Tala's leg muscles widen. What does that do?

    • More blood reaches the leg muscles
    • Blood goes back without the lungs
    • Blood stops in the legs
    • Less blood reaches the leg muscles

  11. After a hard game, Zee breathes fast and the heart beats fast. How do the two systems work together?

    • The left side sends blood to the lungs
    • They work apart
    • The heart makes oxygen; the lungs pump it
    • Lungs load oxygen; the heart pumps it out
PencilGopencilgo.com

7th grade The heart, vessels and blood flow worksheet – printable
Print: 123456

About this worksheet

The heart, vessels and blood flow. Every version has 10 questions, and the answer key prints on the second page.

What your child will learn

  • I can name the heart, arteries, veins and capillaries and say what each does.
  • I can trace blood: body → right atrium → right ventricle → lungs → left atrium → left ventricle → body.
  • I can explain where oxygen enters the blood and where it passes to cells, and why the heart beats faster in exercise.

Standard: MS-LS1-3

Words to know

atrium (atria): An upper heart chamber that receives blood

ventricle: A lower heart chamber that pumps blood out

artery: A vessel carrying blood away from the heart

vein: A vessel carrying blood back to the heart

capillary: A tiny vessel, one cell thick, where things pass to and from cells

pulmonary: To do with the lungs

Common mistakes

Your child swapped arteries and veins. Arteries carry blood away from the heart; veins carry it back. A for away is a handy reminder.

Your child named a vessel by its oxygen. Vessels are named by direction: the pulmonary artery carries oxygen-poor blood away from the heart to the lungs.

Your child mixed up the heart's two sides. The right side pumps blood to the lungs; the left side pumps it to the body.

Questions parents ask

What is the most common mistake with the heart, vessels and blood flow?

Your child swapped arteries and veins. Arteries carry blood away from the heart; veins carry it back. A for away is a handy reminder.

Are these 7th grade science worksheets free to print?

Yes. All 6 printable versions at each level are free to print, with the answer key, and no account is needed.

More grade 7 science

See all grade 7 science

Every sheet you scan goes into your child’s record: dated, marked and ready for the year-end portfolio. Homeschool records

Ready for easier practice?

Print a sheet, scan it when it’s done, and PencilGo picks the next one.

Create a free account