Grade 3 · Science · Building Confidence
Free Human Body & Health worksheet - version 19
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-1K4SOV3-L51E
1.What do muscles do?
2.Why is a balanced diet useful?
3.What do kidneys remove from blood?
4.Where does digestion begin?
5.Why do people need sleep?
6.How do vaccines help?
7.Name one job of the skeleton.
8.Which system sends messages through nerves?
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 19
- What do muscles do?They contract to move body parts
- Why is a balanced diet useful?It supplies varied nutrients
- What do kidneys remove from blood?Wastes and extra water
- Where does digestion begin?In the mouth
- Why do people need sleep?To help the body and brain recover
- 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
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.