Suddenly, Tortoise sees some paper on the floor. He has a new great idea.

WHAT DO YOU THINK IS TORTOISE’S IDEA?

He sets to work and he has a beautiful new colorful paper shell. Tortoise is happy but…

Unfortunately, the wind starts to blow and Tortoise paper shell blows away.

Tortoise has another idea. He makes a shell with wooden sticks. He thinks it is stronger, but…

WHY ?

WHAT DO YOU THINK IS GOING TO HAPPEN?

Tortoise walks near a fire and the wooden shell gets burnt.Tortoise is not very happy but he has another idea:He starts to knit a fantastic warm wool shell.

WHAT DO YOU THINK IS IT THE PERFECT SHELL?

Tortoise feels warm with his new shell but he walks near a rose bush and his lovely warm wool shell begins to unravel.

ARE RUBBER AND PLASTIC GOOD MATERIALS FOR HIS NEW SHELL?

Tortoise is very angry when he has a new idea. He makes a rubber-plastic shell.

APPEARANCE Shiny Dull

TRANSPARENCY Opaque Transparent

STRENGTH Hard Soft

FLEXIBILITY Elastic Plastic

HEAT CONDUCTIVITY Conductor Insulator

PERMEABILITY Waterproof Absorbent

FLAMMABILITY Flammable Inflammable

PROPERTIES 4&5 : WOOL and PLASTIC/RUBBER PREDICTION