Grade 3 · Science · On Level
Free Human Body & Health worksheet - version 3
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-1AA0LT0-N3A3
1.What is the immune system's job?
2.What do kidneys remove from blood?
3.Which cells carry oxygen?
4.Why is a balanced diet useful?
5.How do vaccines help?
6.Name one job of the skeleton.
7.Why do people need sleep?
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 3
- What is the immune system's job?Defend against harmful pathogens
- What do kidneys remove from blood?Wastes and extra water
- Which cells carry oxygen?Red blood cells
- 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
- Why do people need sleep?To help the body and brain recover
- 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.