1. Natural Sciences and Technology Grade 5
Term 1: Life and Living
Skeletons as Structures
(PPT 4)

2. Topic 3 Skeletons as Structures
Frame and shell structures
Gr 5 Natural Sciences and Technology – Term 1, Topic 3

3. What is a frame structure?
the structure has a frame or skeleton
a frame is built / assembled / put together by pieces of material that are attached together
open frame structures’ frames are clearly visible
some frames are not clearly visible, because they are covered by a “skin”
Gr 5 Natural Sciences and Technology – Term 1, Topic 3

4. Frame structures
Gr 5 Natural Sciences and Technology – Term 1, Topic 3

5. Skeletons the most important frame structure of all the vertebrates
all vertebrates have an endoskeleton that makes a frame to support the body
the frame is made from bone
Gr 5 Natural Sciences and Technology – Term 1, Topic 3

6. Skeletons the bone is attached to the muscles
the muscles move the skeleton
Gr 5 Natural Sciences and Technology – Term 1, Topic 3

7. Skeletons the skeleton protects the organs and it supports the muscles
the rib cage is a frame structure
the rib cage protects 3 organs, namely the liver, heart and lungs
Gr 5 Natural Sciences and Technology – Term 1, Topic 3