Name:_____________________________________
Date:_______________________
Phet: Sugar and Salt Simulation
Go to the following site and complete the questions below. You may type directly
on this sheet and then upload it in the assignment link directly below this in Moodle.
http://phet.colorado.edu/en/simulation/sugar-and-salt-solutions
What happens when you add sugar and salt to water?
Directions:
Macro tab directions: Part I:
1. Choose salt in the upper right hand corner.
2. Shake the salt shaker and check the box that says “show values” in the Concentration
box. Record your concentration in the data table below.
3. Move the conductivity meter into the solution. Record what happens in the data table
below.
4. Repeat using 2 more different concentrations.
5. Find the evaporation box at the bottom. Move it and record your new concentration of
salt.
6. Add the conductivity meter and record results.
7. Repeat all of the above with sugar.
Data
Substanc
e
Concentrati
on 1
Concentrati
on 2
Concentrati
on 3
Conductivi
ty Trial 1
Conductivi
ty Trial 2
Conductivi
ty Trial 3
Salt
Sugar
Discussion Questions:
1. What are the differences in the conductivity results between salt and sugar?
Evaporation
Concentrati
on
Name:_____________________________________
2.
Date:_______________________
What happens to concentration when you evaporate the water?
Micro tab directions: Part II
1. Choose sodium chloride in the upper right hand corner.
2. Shake the salt shaker and sketch what you see (when you sketch, you can use a
computer application or sketch by hand)
3. Evaporate some of the water and sketch what you see.
4. Choose sucrose in the upper right hand corner.
5. Shake the sugar container and sketch what you see.
6. Evaporate some water and sketch what you see.
Substance
Sodium chloride
Sucrose
Initial Sketch
Sketch after evaporation
Name:_____________________________________
Date:_______________________
Water tab directions: Part III:
1. Place the salt into the water molecule box. Sketch what you see.
2. Place the sugar in the water molecule box. Sketch what you see.
Data:
Salt in water
Sugar in water
Discussion and Conclusions:
1.
How do salt and sugar differ in types of bonds?
2.
In this simulation, what are the solutes, and what is the solvent?.
3.
Given what you have learned, describe each of the steps (3 of them) that occur when I
add salt to water.
4.
Which of the solutes appeared to be an electrolyte in solution? Was one better than
the other, and if so how could you tell in the simulation?
5.
How is salt different from sugar in its solvation process?