Glue to Goop
Purpose: To observe how chemical bonds change the properties of
matter.
Materials: 2 small paper cups, 1 wooden stir stick, glue solution (half
glue/half water), borax solution (4g borax: 100 ml H20), and napkin
Procedures:
1. Fill a small paper cup 1/4 full of glue solution.
2. Observe the properties of the glue and record in your data
table.
3. Fill the second small cup 1/4 full of borax solution
4. Observe the properties of the borax solution and record in
your data table.
5. Pour the borax solution into the cup containing the glue
solution. Stir well using your wooden stir stick.
6. When it becomes too thick to stir, remove he material from eh
cup and kneed it with your fingers.
7. Observe the properties of the new material and record your
observation in you data table.
Observations:
1. Draw and label a picture of your experiment.
2. Fill out the data table.
Item
Observation
Ob. Cont.
Solid/Liquid/Gas?
Glue solution
Borax solution
Combination
Analysis:
1. Compare the properties of the glue with those of the new
material.
2. The properties of the new material resulted from the bonds
between the borax and the particles in the glue. If too little
borax were used, in what way would the properties of the
material have been different?
3. . Was the hypothesis supported, explain why or why not?
4. How are the properties of the elephant snot different from the
properties of the glue?
5. Is it possible to change elephant snot back into glue and borax,
explain why or why not?
6. What is happening to the atoms in the glue and the atoms in
the borax during this chemical reaction?