A growing library of level-graded English lessons for classroom or self-study, with reading, listening, vocabulary, activities, and discussion practice from A1 to B2.
Lesson Info
In this lesson:
- Look First Use the image to start talking about the topic.
- Words You Need Useful words and meanings before reading.
- Read and Listen Read the text and follow the audio.
- Understand It Check understanding with questions about the text.
- Chunks Place Complete location sentences with help from an image.
- Chunks Repeat Repeat useful language patterns from the lesson.
- Use It Use the new language to speak or write.
- Answers Answer key for the printed tasks.
What Is a Skeleton?
Start Here
Look First

- What can you see inside the body?
- Which parts are long and straight?
- What shape is the head?
Before You Read
Words You Need
Learn
Read and Listen
Play the audio while you read, or listen after you read.
A skeleton is the hard structure inside the human body. It is made of bones. An adult has 206 bones, but babies have more. These bones are under the skin and muscles, so we usually cannot see them.
The skull is at the top of the skeleton and protects the brain. The ribs are around the chest and protect the heart and lungs. The spine goes down the back and helps us stand straight.
The arms and legs have long bones. Joints are places where bones meet, such as the knees and elbows. They let the body bend and turn. Muscles pull on bones, and together they move the body.
The skeleton supports the body, gives the body its shape, and protects important parts inside it. It also works with muscles and joints to help us move. The skeleton is an important part of the human body.
Quick Check
Understand It
-
The bones are under the skin and muscles.
-
The ribs protect the brain.
-
Joints let the body bend and turn.
-
Where is the spine?
-
What do muscles do?
Build
Chunks
Place
-
The skull is at the top. It .
-
The ribs are around the chest. They .
-
The skeleton is inside the body. It .
-
The skeleton works with muscles and joints. It .
Repeat
Listen and Repeat. Hide the text and try again.
Now Try
Use It
Talk or write. Use the language from this lesson.
Answers
Understand It:
- True
- False
- True
- down the back
- pull on bones
Chunks: Place:
- The skull is at the top. It protects the brain.
- The ribs are around the chest. They protect the heart and lungs.
- The skeleton is inside the body. It supports the body.
- The skeleton works with muscles and joints. It helps us move.
KEEP GOING