Grade 4 · Science · Challenge
Free Human Body & Health worksheet - version 15
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 · Stretch challenge · 8 questions · Version PG-K828R6-1Y3U
1.Why is a balanced diet useful?
2.What is the immune system's job?
3.Which system sends messages through nerves?
4.How do vaccines help?
5.Which cells carry oxygen?
6.What maintains stable internal conditions?
7.What do kidneys remove from blood?
8.Why does heart rate rise during exercise?
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 15
- Why is a balanced diet useful?It supplies varied nutrients
- What is the immune system's job?Defend against harmful pathogens
- Which system sends messages through nerves?The nervous system
- How do vaccines help?They prepare immunity to recognize a pathogen
- Which cells carry oxygen?Red blood cells
- What maintains stable internal conditions?Homeostasis
- What do kidneys remove from blood?Wastes and extra water
- Why does heart rate rise during exercise?Muscles need oxygen and nutrients faster
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.