1. Natural Sciences and Technology Grade 5
Term 1: Life and Living
Skeletons as Structures
(PPT 3)

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

3. Strength of structures
corners of structures are very important
corners are the weakest point of any structure
if a brace (another support) is placed across a rectangle’s corner to form a triangle, then it would automatically strengthen the corner
Gr 5 Natural Sciences and Technology – Term 1, Topic 3

4. Strength of structures
a corner can also be strengthened by a gusset (a triangle patch placed over the corner
Gr 5 Natural Sciences and Technology – Term 1, Topic 3