A N G E L A A VI S O 8 - 1 6

EGG OSMOSIS EXPERIMENT

PURPOSE

• To observe osmosis

in a cell.

• Steps:

1. Place 2 eggs in

vinegar (leave

for 24 hrs)

2. Measure the

weight of the

eggs

Placing Egg in

Vinegar

PURPOSE

3. Measure the size/circumference of the eggs

4. Place 1 egg in corn syrup, place other in water. (Leave for 24hrs)

5. Weigh and measure the eggs again.Egg Placed in

Corn Syrup

HYPOTHESIS (WATER EGG)

• Weight:

Increase

• Size: Increase

• Exterior

Appearance:

• Egg will look

the same

HYPOTHESIS (CORN SYRUP EGG)

• Weight: Increase

• Size: Increase

• Exterior

Appearance:

• Will be a lighter

shade of corn

syrup

MATERIALS

2 Eggs

Balance

Measuring

Tape

Water

Corn Syrup

Vinegar

2 Beakers

OBSERVATIONS – WEIGHT & SIZE

24 hrs Before 24 hrs After

Corn Syrup

Egg

Weight - 67 g

Size – 16.1 cm

Weight – 44 g

Size – 13.2 g

Water EggWeight – 77.4 g

Size – 16 cm

Weight – 91.9 g

Size – 17.5 cm

OBSERVATIONS

• (Both eggs) After

24 hrs in vinegar:

• Eggs were:

• Foams formed

on top

• Jell-O-like /

Squishy

Egg in vinegar after

24 hours

OBSERVATIONS

• After 24 hrs in Water:• Eggs were:

• Floating on top

• Larger

• After 24 hrs in Corn Syrup:• Eggs were:

• Floating on top

• Deflated

• Shrivelled

• Smaller

Water Egg

After 24 hours

Corn Syrup Egg

After 24 hours

CONCLUSION (WATER EGG)

• Water Egg increased in

size/weight

• High concentration goes

to Low concentration

• Water - high

concentration

• Egg – low concentration

• water concentration

equal on both the water

and the egg must be

equalHigh to Low Concentration

(Water particles moved into

the egg.)

CONCLUSION (CORN SYRUP EGG)

• Egg decreased in size/weight:• High concentration

goes to Low concentration

• Corn syrup - low concentration

• Egg - High concentration

• water concentration equal on both the water and the egg must be equal

High to Low Concentration

(Water particles moved out

of the egg.)

CONCLUSION – HYPOTHESIS(WATER EGG)

• Weight:

• Correct. Weight

Increased

• Size:

• Correct. Size

Increased

• Appearance:

• Correct. Did not

changeWater Egg

CONCLUSION – HYPOTHESIS(CORN SYRUP EGG)

• Weight:

• Incorrect. Weight

decrease

• Size:

• Incorrect. Size

decrease

• Appearance:

• Correct. Lighter

shade of corn-syrup

Corn Syrup Egg