PencilGo

Human Body & Health

Grade 4 · On-level practice · 8 questions · Version PG-15VH4TB-V1L1

Free printable
1.How do lungs and circulation interact?
2.Why is a balanced diet useful?
3.Which cells carry oxygen?
4.What is the immune system's job?
5.How do vaccines help?
6.Which system sends messages through nerves?
7.What maintains stable internal conditions?
8.What carries oxygen from lungs to cells?

Answers and teaching notes

Use the answers to check the work after the learner finishes. For writing prompts, the guide describes what a strong response should include.

Show answers for version 7
  1. How do lungs and circulation interact?Lungs add oxygen to blood, which carries it to cells
  2. Why is a balanced diet useful?It supplies varied nutrients
  3. Which cells carry oxygen?Red blood cells
  4. What is the immune system's job?Defend against harmful pathogens
  5. How do vaccines help?They prepare immunity to recognize a pathogen
  6. Which system sends messages through nerves?The nervous system
  7. What maintains stable internal conditions?Homeostasis
  8. What carries oxygen from lungs to cells?The circulatory system

Worked example

Connect a structure to its function and explain how body systems work together.

Common mistake

Naming an organ without explaining its system role.

Helpful hint

Trace what enters, changes, and leaves the system.