Thames & Kosmos Chewing Gum Lab handleiding
Handleiding
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3. Weighing gum
Which do you think will weigh
more: an unchewed piece of gum or a
chewed piece of gum? Why?
You will need:
One or two pieces of gum (weighing
about 5-8 grams total), piece of wax
paper, tissue paper or paper towels,
digital kitchen scale or postage-stamp
scale
Here’s how:
1
Turn on the scale. Place a piece
of wax paper, or tissue paper or
paper towel, on the scale. Press
the tare button to zero the scale
so that it is ready to weigh the
gum.
2
Place the gum on the scale.
Record the weight of the
unchewed gum on a piece of
paper.
3
Chew the gum for about five
minutes.
4
Weigh the gum again and record
the weight of the chewed gum.
What happened to the weight
of the gum after you chewed it?
Why?
GEEK
OUT!
WHAT’S
HAPPENING?
As you found in the dissolving
gum experiment, water pulls the
sugar and flavoring out of the gum
leaving only the gum base. Since
saliva is 99.5% percent water, the
same thing is happening here!
The ability of water to remove
the sugar and flavoring from gum
is how you are able to taste the
flavoring in gum.
10
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Productinformatie
| Merk | Thames & Kosmos |
| Model | Chewing Gum Lab |
| Categorie | Niet gecategoriseerd |
| Taal | Nederlands |
| Grootte | 8986 MB |
