📚 Part 1: Learn and Check

WALT: We Are Learning To explain how body systems work together to keep the body alive and healthy.

Success criteria: I can identify the function of major organs, describe how systems interact, and use scientific vocabulary accurately.

1. Which organ pumps blood around the body?

Brain

Heart

Lung

Stomach

2. Where does most oxygen enter the blood?

In the lungs

In the stomach

In the kidneys

In the muscles

3. Which body system breaks food into smaller molecules that can be absorbed?

Digestive system

Nervous system

Skeletal system

Respiratory system

4. Which structure protects the brain?

Rib cage

Skull

Pelvis

Spine

5. Which two systems work together to deliver oxygen to muscle cells?

Respiratory system

Circulatory system

Digestive system

Skeletal system

✏️ Part 2: Explain How Systems Work Together

6. Describe the path of oxygen from the air you breathe to a muscle cell. Use the words lungs, blood, and heart.

7. Explain how the digestive system and circulatory system work together after you eat a meal.

8. During exercise, breathing rate and heart rate increase. Explain why this happens.

9. Match each body part to its main function.

A. Brain

B. Lungs

C. Small intestine

D. Kidneys

1. Removes wastes from the blood

2. Controls and coordinates the body

3. Absorbs digested nutrients

4. Exchanges oxygen and carbon dioxide

Answers: A–____ B–____ C–____ D–____

🔬 Part 3: Apply and Extend

10. A student injures their spinal cord. Predict one possible effect on movement or sensation and explain why.

Differentiation strategies: Use the word bank organ, tissue, oxygen, nutrients, waste, signal, blood, system. You may answer questions 6–8 using labelled steps, a voice recording, or a teacher-supported discussion.

Dyslexia-friendly reading option: Read one question at a time, cover the other questions, use a ruler or coloured overlay to track each line, and highlight key scientific words before answering.

Extension activity: Choose one body system and create a flow diagram showing how it works with at least two other systems. Include five correctly labelled organs or structures and explain one feedback or control process.