Grade 3 · Science · Building Confidence
Free Human Body & Health worksheet - version 15
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-1L8R3MZ-L51E
1.Why is a balanced diet useful?
2.Name one job of the skeleton.
3.What is the immune system's job?
4.What do muscles do?
5.Where does digestion begin?
6.Which system sends messages through nerves?
7.Which cells carry oxygen?
8.Why do people need sleep?
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
- Name one job of the skeleton.Support and protect the body
- What is the immune system's job?Defend against harmful pathogens
- What do muscles do?They contract to move body parts
- Where does digestion begin?In the mouth
- Which system sends messages through nerves?The nervous system
- Which cells carry oxygen?Red blood cells
- Why do people need sleep?To help the body and brain recover
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.