Grade 5 Heart, Bones & Muscles worksheet
from Gradelings · Name: ______________________
How to explain it
- The heart pumps blood to the lungs to pick up oxygen, then out to the whole body.
- Exercise makes your heart beat faster, because muscles need more oxygen.
- Bones hold you up and protect organs. Muscles pull on bones through tendons.
- Muscles can only pull: the biceps contracts to bend your arm.
Example: Your heart beats 72 times a minute at rest and 118 after running. How many more beats? Subtract the rest rate from the running rate. 118 − 72 = 46. Answer: 46 more beats per minute
Question 1
Follow one drop of blood. Start when the heart pumps it to the lungs.
- 💪The heart pumps it out to the body
- ↩️Oxygen-rich blood returns to the heart
- 🔄Cells take the oxygen and blood heads back
- 🫀The heart pumps blood to the lungs
- 🫁Blood picks up oxygen in the lungs
The heart pumps blood to the lungs → Blood picks up oxygen in the lungs → Oxygen-rich blood returns to the heart → The heart pumps it out to the body → Cells take the oxygen and blood heads back
Hint: Blood goes from the heart to the lungs for oxygen, back to the heart, out to the body, and then back to the heart again.
Question 2
What is the main job of the heart?
🫀- holding up the skeleton
- breaking down food
- filtering the air
- pumping blood all around the body
pumping blood all around the body
Hint: The heart is a strong muscle that pumps blood through your blood vessels all day and night.
Question 3
What are capillaries?
- tiny blood vessels where oxygen and nutrients pass into cells
- the four chambers of the heart
- the biggest arteries in the body
- the air sacs in the lungs
tiny blood vessels where oxygen and nutrients pass into cells
Hint: Capillaries are so thin that oxygen and nutrients can pass right through their walls into nearby cells.
Question 4
Which type of joint lets your shoulder swing your arm in a full circle?
- fixed joint
- pivot joint
- hinge joint
- ball-and-socket joint
ball-and-socket joint
Hint: In a ball-and-socket joint, a rounded end of bone fits into a cup, so it can move in many directions.
Question 5
Which blood vessels carry blood away from the heart?
- capillaries
- alveoli
- arteries
- veins
arteries
Hint: A memory trick: Arteries carry blood Away from the heart.
Question 6
Circulatory system or musculoskeletal system? Tap an item, then tap its basket.
Sort into: 🫀 circulatory · 🦴 musculoskeletal
- 🦴skull
- 🦵femur (thigh bone)
- 🩸veins
- 🩸capillaries
- 🦴rib cage
- 🩸arteries
🫀 circulatory: veins, capillaries, arteries · 🦴 musculoskeletal: skull, femur (thigh bone), rib cage
Hint: The circulatory system moves blood. The musculoskeletal system (bones and muscles) supports and moves your body.
Question 7
What does your skeleton do for your body?
🦴- supports it, protects organs and helps it move
- digests food
- takes in oxygen
- pumps blood to the lungs
supports it, protects organs and helps it move
Hint: Bones give your body its shape, guard soft organs, and work with muscles so you can move.
Question 8
How many more beats per minute was Kenji's heart rate after jumping jacks than at rest?
Kenji's heart rate (beats per minute) answer boxbeats
49 beats
Hint: Subtract the resting rate from the jumping-jacks rate: 125 − 76 = 49.
Question 9
Put the steps of bending your arm in order.
- 🧠The brain sends a signal to the biceps
- 🦴A tendon pulls on a forearm bone
- ↪️The arm bends at the elbow joint
- 💪The biceps contracts (gets shorter)
The brain sends a signal to the biceps → The biceps contracts (gets shorter) → A tendon pulls on a forearm bone → The arm bends at the elbow joint
Hint: Your brain sends the message first. Then the biceps contracts, its tendon pulls the bone, and the arm bends at the elbow joint.
Question 10
What happens to your heart rate when you exercise hard?
🏃- it stays exactly the same
- it goes up
- it goes down
it goes up
Hint: Working muscles need more oxygen, so your heart beats faster to deliver more blood.
Answer key
- 1. The heart pumps blood to the lungs → Blood picks up oxygen in the lungs → Oxygen-rich blood returns to the heart → The heart pumps it out to the body → Cells take the oxygen and blood heads back
- 2. pumping blood all around the body
- 3. tiny blood vessels where oxygen and nutrients pass into cells
- 4. ball-and-socket joint
- 5. arteries
- 6. 🫀 circulatory: veins, capillaries, arteries · 🦴 musculoskeletal: skull, femur (thigh bone), rib cage
- 7. supports it, protects organs and helps it move
- 8. 49 beats
- 9. The brain sends a signal to the biceps → The biceps contracts (gets shorter) → A tendon pulls on a forearm bone → The arm bends at the elbow joint
- 10. it goes up
Want more than 10 questions?
In Gradelings the questions change every time and adjust to your child, with hints and kind feedback.