Cell Theory Poster Objective-You will get with your group and work on a poster to present the 3 principles of the cell theory. Materials – Poster paper, markers, Science Fusion text book. Step 1 – Turn to Page 110 and 111. Read about The Cell Theory Step 2 – Draw a Bubble Model to have 3 bubbles connected to a larger bubble Principle 1 (leave some space for the definitions) Principle 2 (leave some space for the definitions) Principle 3 (leave some space for the definitions) Cell Theory Step 4 – Fill in the Definitions for Principle 1, 2 & 3 for the Cell theory so it is large enough so everyone can see it in the back