1. By Jennifer Lopez 8-73

2.  To observe
osmosis in a cell
 1) Place eggs in
vinegar, to remove
shell
 2) Weight of egg,
measured using a
balance

3.  3) Size of egg,
measured using
measuring tape
 4) 1 egg in water, 1
egg in corn syrup
 Weigh and measure
eggs again.

4.  Egg will be heavier
in weight
 Size of egg- a tiny
bit bigger
 Egg will look a bit
fatter

5.  Egg’s weight will be
heavier
 Size of egg -gets
bigger
 Egg will look the
same

6.  Eggs
 Beakers
 Balance
 String
 Measuring tape
 Vinegar
 Corn syrup
 Water

7.  1) Vinegar- 24 hours
 - squishy, bouncy
Corn syrup Before After
W-71.5g W-50.6g  - top of beaker: foamy
 2) Corn Syrup- 24
S- 16cm S- 14.5cm
hours
Water Before After
W-71.4g W-87.5g
 -looks:-dented
 -deflated
S-16g S-18.5cm
 3) Water- 24 hours
 - looks: fatter

8.  1) Corn Syrup Egg
 - smaller
 -higher water
concentration
 - water moved
higher
concentration (egg)
 - to lower
concentration (corn
syrup)

9.  2) Water Egg
 - larger
 - water when in egg
 - lower concentration
of water
 -moved higher
concentration (water)
 -to lower
concentration (egg)

10.  Corn syrup egg
 Wrong! (size, weight
looks)
 Said to be bigger, but
got smaller
 Looked – smaller
 Weighed- lighter
 Size- smaller
 Egg & corn syrup -
even in & out
 Water went in corn
syrup egg

11.  Water egg
 Right! (size, weight,
looks)
 Size- Said to get
bigger
 Weight- Said to weigh
heavier
 Looks- Said to look
fatter
 Why?- Water (higher
concentration) moved
into egg (lower
concentration)