Irena Tonnu

8-14

EGG OSMOSIS EXPERIMENT

To observe osmosis in a cell

1) Place eggs in vinegar

2) Measure the weight of the egg

PURPOSE

3) Measure the size of the egg

4) Place one egg in water and one egg in corn syrup

5) Weigh and measure egg

PURPOSE

Corn Syrup Egg• The weight is going to be

lighter• The size is going to be

smaller• Its going to look a little

bit brown and yellow

HYPOTHESIS

Water Egg• The weight is going to be

heavier • The size is going to be

bigger• It’s going to look the

same

HYPOTHESIS

• Vinegar• Corn syrup• 2 eggs

MATERIALS

• Measuring tape and string

• Water• 2 beakers• Balance

MATERIALS

OBSERVATIONS

Corn Syrup Egg (After 48 hours)

Water Egg (After 48 hours)

Vinegar Egg (After 24 hours)

OBSERVATIONS

• 1) bubbles coming out of egg

• 2) after 24hrs white foam is on top of the water

• 3) the skin is gone and feels soft, jelly like

• 4) eggs got larger from sitting in water for 2 days

• 5) water egg got larger, syrup egg got smaller

Corn Syrup Egg• Egg got smaller• Water left egg

• Water moved from high to low concentration

(osmosis)

CONCLUSION

Water Egg• Water egg got larger• Water entered egg

• Water moved from high to low concentration

(osmosis)•

CONCLUSION

Corn Syrup Egg• Weight- right, I thought it

would weight more• Size- right, I though it

would be smaller• Looks- right, I thought it

would a bit yellow

CONCLUSION (HYPOTHESIS)

Water Egg• Weight- right, I thought it

would weigh more• Size- right, I thought it

would be larger• Looks- wrong, I thought it

would look the same

CONCLUSION (HYPOTHESIS)