Grade 3 · Science · Building Confidence
Free Human Body & Health worksheet - version 16
Grade 3 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 3 · Building confidence · 8 questions · Version PG-1LIQPBY-L51E
1.Where does digestion begin?
2.Which cells carry oxygen?
3.What do kidneys remove from blood?
4.Why is a balanced diet useful?
5.How do vaccines help?
6.Name one job of the skeleton.
7.Which system sends messages through nerves?
8.What is the immune system's job?
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 16
- Where does digestion begin?In the mouth
- Which cells carry oxygen?Red blood cells
- What do kidneys remove from blood?Wastes and extra water
- Why is a balanced diet useful?It supplies varied nutrients
- How do vaccines help?They prepare immunity to recognize a pathogen
- Name one job of the skeleton.Support and protect the body
- Which system sends messages through nerves?The nervous system
- What is the immune system's job?Defend against harmful pathogens
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.