Grade 4 · Science · On Level
Free Human Body & Health worksheet - version 20
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-19QFZRK-V1L1
1.What maintains stable internal conditions?
2.Why is a balanced diet useful?
3.Why does heart rate rise during exercise?
4.How do lungs and circulation interact?
5.What carries oxygen from lungs to cells?
6.How do vaccines help?
7.What is the immune system's job?
8.What do kidneys remove from blood?
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 20
- What maintains stable internal conditions?Homeostasis
- Why is a balanced diet useful?It supplies varied nutrients
- Why does heart rate rise during exercise?Muscles need oxygen and nutrients faster
- How do lungs and circulation interact?Lungs add oxygen to blood, which carries it to cells
- What carries oxygen from lungs to cells?The circulatory system
- How do vaccines help?They prepare immunity to recognize a pathogen
- What is the immune system's job?Defend against harmful pathogens
- What do kidneys remove from blood?Wastes and extra water
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.