Week 23 - Classifying Structural Forms and Functions

 



Exercise 1.1


Lesson 1.1: Classifying Structural Forms


ACTIVITY A: Classifying Structural Forms



Required Readings

Science in Action 7
pages 264 to 268
or

Science Focus 7

pages 270 to 280

A structure is something, which will support an object or a weight. A human skeleton is a structure because it supports flesh and muscles.

NATURAL FRAME STRUCTURES



In a frame structure, the skeleton like structure supports a mass of some sort. A spider web supports the spider and a fly. The fish skeleton supports the flesh of the fish. The veins of the leaf support the flesh of the leaf.

NATURAL SHELL STRUCTURES



In a shell structure, the hard outside structure supports (and often protects) the weight of an object on the inside. The nutshell supports and protects the nut. The eggshell supports and protects the egg. The honeycomb supports and protects the bee larvae and honey.

NATURAL SOLID STRUCTURES

Solid structures supports a mass just by its size. Trees are solid structures.




MAN-MADE FRAME STRUCTURES



What objects or mass are or will be supported by the three structures that you see in this picture?

MAN-MADE SHELL STRUCTURES



What objects or masses are or will be supported and protected by the four structures that you see in this picture?

SOLID STRUCTURES

What object or mass is supported by these structures?

Exercise 1.1: Classifying Structural Forms