The Egg
What liquid is used to dissolve the eggshell?
Vinegar
What is a membrane?
A thin layer that separates areas
What part of the egg remains after the shell dissolves?
The "Membrane"
What does “selectively permeable” mean?
It lets some substances pass through but not others
What causes bubbles to form on the egg in vinegar?
A reaction between the vinegar and the eggs shell
What is a solution?
A mixture where something is dissolved in a liquid
What is the egg’ s soft outer covering called after the shell is gone?
The Membrane
What is concentration?
How much of a substance is in a mixture
Why is the naked egg useful for studying osmosis?
Its membrane lets water move in or out.
Why can water pass through the egg membrane, but larger substances may not?
The membrane allows some small molecules, like water, through and blocks others.