Grade 4 · Science · On Level
Free Human Body & Health worksheet - version 14
Grade 4 human body & health practice with original questions, explanations, and difficulty-matched printable versions. This printable version includes 8 grade-appropriate questions and a separate answer sheet.
Human Body & Health
Grade 4 · On-level practice · 8 questions · Version PG-1FUGPIV-V1L1
1.Which cells carry oxygen?
2.What is the immune system's job?
3.Why does heart rate rise during exercise?
4.What maintains stable internal conditions?
5.Which system sends messages through nerves?
6.How do lungs and circulation interact?
7.How do vaccines help?
8.Why is a balanced diet useful?
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 14
- Which cells carry oxygen?Red blood cells
- What is the immune system's job?Defend against harmful pathogens
- Why does heart rate rise during exercise?Muscles need oxygen and nutrients faster
- What maintains stable internal conditions?Homeostasis
- Which system sends messages through nerves?The nervous system
- How do lungs and circulation interact?Lungs add oxygen to blood, which carries it to cells
- How do vaccines help?They prepare immunity to recognize a pathogen
- Why is a balanced diet useful?It supplies varied nutrients
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.