Name: ___________________________________
Date: _____________________
Directions: Answer using complete sentences! Use the information you have been given to answer questions about: The five jobs that bones do to help us. Challenge yourself and try the highest level you can!
Subject: The Skeletal System: Skeletal System recap of content covered.
Level#1: Bones have five jobs. They support your body and give your body shape. They protect many organs inside your body. For example, your skull protects your brain. Bones are made of living and nonliving materials. The living materials are bone cells, blood cells, and nerve cells. These cells make up about one-third of bones.
1. What do bones do for your body?
2.What are the living materials that bones are made of?
3. Give an example of what your bones protect.
Level#2: Bones are made of living and nonliving materials. The living materials are bone cells, blood cells, and nerve cells. These cells make up about one-third of bones. About two-thirds of bones are made up of nonliving materials, including the minerals calcium and phosphorus. The skeleton of an unborn baby is made of cartilage. This tissue is tough but flexible. Bones have five jobs. They support and give your body shape. They protect many organs insides your body. For example, your skull protects your brain. Many bones work with muscles to help you move. Some bones have soft tissue called marrow inside of them. This tissue makes blood cells.
1.What are the nonliving materials that bones are made of?
2.What is the skeleton of an unborn baby made of and how would you describe it?
3. What are the nonliving materials that bones are made of?
4. What do some bones have inside them and what does this tissue make?
Level#3: Bones are made of living and nonliving materials. The living materials are bone cells, blood cells, and nerve cells. These cells make up about one-third of bones. About two-thirds of bones are made up of nonliving materials, including the minerals calcium and phosphorus. The skeleton of an unborn baby is made of cartilage. This tissue is tough but flexible. As an unborn develops, most of its cartilage skeleton changes to hard bone. The cartilage that is left has many functions. For example, it prevents the ends of bones from rubbing against each other. Bones have five jobs. They support and give your body shape. They protect many organs insides your body. For example, your skull protects your brain. Many bones work with muscles to help you move. Some bones have soft tissue called marrow inside of them. This tissue makes blood cells. Bones store minerals such as calcium and phosphorus.
1. Explain what bones protect and give a specific example of this.
2. Explain what is inside of bones and what this tissue makes.
3. Describe both the living and nonliving materials that bones are made of.
4. Describe the skeleton of an unborn baby, what happens to it as the baby develops, and the function of the cartilage that is left.
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