Procedure B19

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Begin bypouring 10mL of polyvinyl alcohol (PVA) into a 30mL graduated cup
Next, pour 2.5 mL of sodium borate into the other graduated cup you have
One member of your group should slowly and carefully add the sodium borate into the PVA, another person should stir the two together while it is being poured
As you are completing this step make sure you are jotting down notes about the PVA and carefully observing it
Observe the properties of the new substance you have created, write them down
Remember to closely look at the properties of this as well and write what you see down in the data table
Do a few tests on each additional properties. For example, what happens when you pull this?, does it stick to your desk?, your chair?
Look at the changes that are going on, observe and record in your B19 data table
Follow your teachers directions on how to clean up this lab, you do not want to get hurt
After looking at your new item in a cup transfer it to a paper towel. Investigate and record STRETCHINESS, STICKINESS, BOUNCINESS
Record all of you information down, you will want it for later
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Ustvarjenih več kot 30 milijonov snemalnih knjig