Body Systems
The human body has many systems that work together. In Year 4 we focus on the digestive and skeletal systems and how they keep us healthy.
What You Need to Know
Key Concept Diagram
The digestive system breaks down food into nutrients the body can absorb
The skeletal system provides structure, protects organs, and enables movement
Bones connect at joints, and muscles move bones by contracting
A healthy diet provides the nutrients all body systems need to function well
Key Vocabulary
Digestive system
The group of organs (mouth, stomach, intestines) that break down and absorb food
Skeletal system
The framework of bones that supports and protects the body
Nutrient
A substance in food that the body needs for energy, growth, and repair
Joint
A place where two bones meet, allowing movement
Knowledge Check
Select the correct answer for each question. Click "Check Answer" to see if you are right.
Question 1
What is the main job of the digestive system?
Question 2
What does the skeletal system NOT do?
Question 3
Where does digestion first begin?
Key Concepts Summary
- ●The digestive system breaks down food into nutrients the body can absorb
- ●The skeletal system provides structure, protects organs, and enables movement
- ●Bones connect at joints, and muscles move bones by contracting
- ●A healthy diet provides the nutrients all body systems need to function well