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Journal Entry:

Why are cells small?

Learning Intentions

• We will learn how to compare transport into and out of different sized cells.

• We will learn how to calculate surface area, volume and surface area to volume ratios to determine efficiency of an organism.

• We will learn how to describe the impact that the ratio between surface area and volume has on size living things can be to survive

Closing Task:

You can collect data for a cell size comparison exploration

Content Standards being covered:

Topics:
ENE-1.B  Explain the effect of surface area-to-volume ratios on the exchange of materials between cells or organisms and the environment.

Science Practices:
3.D Make observations, or collect data from representations of laboratory setups or results. 

Habits of Mind/Life skills being covered:

Applying past knowledge to new situations.