Grade 3 · Science · Building Confidence
Free Human Body & Health worksheet - version 13
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-1MWOPST-L51E
1.Which cells carry oxygen?
2.Name one job of the skeleton.
3.Where does digestion begin?
4.Which system sends messages through nerves?
5.How do vaccines help?
6.What is the immune system's job?
7.Why is a balanced diet useful?
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 13
- Which cells carry oxygen?Red blood cells
- Name one job of the skeleton.Support and protect the body
- Where does digestion begin?In the mouth
- Which system sends messages through nerves?The nervous system
- How do vaccines help?They prepare immunity to recognize a pathogen
- What is the immune system's job?Defend against harmful pathogens
- Why is a balanced diet useful?It supplies varied nutrients
- 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.