Grade 3 · Science · On Level
Free Human Body & Health worksheet - version 1
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 · On-level practice · 8 questions · Version PG-1ATZT6Y-N3A3
1.Which cells carry oxygen?
2.Where does digestion begin?
3.How do vaccines help?
4.What do muscles do?
5.Why is a balanced diet useful?
6.What do kidneys remove from blood?
7.Which system sends messages through nerves?
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 1
- Which cells carry oxygen?Red blood cells
- Where does digestion begin?In the mouth
- How do vaccines help?They prepare immunity to recognize a pathogen
- 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
- Which system sends messages through nerves?The nervous system
- 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.