Show:
Osmosis
Diffusion
Introduction Labs
100
The definition of osmosis.
What is the movement of water across a membrane?
100
The movement of a substance from an area of high concentration to low concentration.
What is the definition of diffusion?
100

Which way did water move during the gummy bear experiment? 

What is into the gummy bear?

200

Osmosis is an example of ______ transport

What is passive transport? 

200
There are two classes of transport

What is active, or passive? 

200

Why did the water move this way?

Because the gummy bear had more solutes than water (less water concentration)

300

Cells will shrink when put into this type of solution

What is hypertonic?

300

True or False - diffusion only occurs in cells 

False - example, food coloring in water or air freshener

300

Why did the egg left in water expand? 

Because the egg had more solutes than the water

400
Water spreading into a solution of Kool-Aid is not osmosis because it does not involve this.
What is a membrane?
400

When the smell of bacon fills the air, the smell goes from an area of ________ concentration to areas of _____ concentration

What is high to low 

400

Why did the egg in corn syrup shrink?

Because the corn syrup had more solutes than the egg 

500

The "motto" of science class 

What is "H20 moves from high to low"

500

This speeds up the rate of diffusion

What is increasing the temperature? 

500

Why are we using eggs to model osmosis?

Because it has a cell membrane