Page 58 - Science Course 2 (Book 1)

Movement of the Body Mo2-L4a: Which System Makes The Body Move?
Lesson 4

Let’s Begin

In this topic, you will learn the following
lessons: Structure and Movement

Mo.2-L4a: Which System Makes The Body Move? The skeletal system protects internal organs,
Mo.2-L4b: How Does the Body Move? provides support, helps the body move, and stores
minerals, such as calcium.

Mo2-L4a Which System Makes The Body
Move?

KEY CONCEPTS:
1. What systems help the body move?

Vocabulary A-Z
Let us learn some vocabulary

compact bone
the hard outer layer of bone.

An adult’s skeleton has 206 bones.

The skeleton also contains ligaments, tendons, and
cartilage.

Compact bone is the hard outer layer of bone.
Compact Bone

spongy bone
the interior region of bone that contains many tiny
holes.

Spongy bone is the interior region of bone that
contains many tiny holes.

Spongy Bone

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