EGG OSMOSIS EXPERIMENT

By Anmarie Somar

8-16

PURPOSE

To observe osmosis in a cell

Place eggs in vinegar to remove the shell

Place egg in vinegar

Measure the weight of the egg using a balance

Measure the size of the egg using string and measuring tape

Weight and measure the eggs again

Weight- I think that Bob will get smaller in weight

Size- I think that Bob will get smaller in size

Looks- I think it will look a little smaller

Weight- I think that Steve will be more in weight

Size- I think that Steve will be bigger in size

Looks – I think that Steve will look like it’s bigger and like jelly.

HYPOTHESIS

Corn syrup egg Water egg

MATERIALS

2 Eggs

Balance

Measuring Tape & String

Corn Syrup

Water

2 Beakers

Vinegar

OBSERVATIONS

1)There is bubbles rising to the top of the egg

2)More bubbles at the top and eggs are floating

3)Eggs are still floating and has foam forming at the top

Before After

Corn Syrup Egg

W: 67 g

S: 16.1 cm

W: 44g

S: 13.2 cm

Water Egg

W: 77.4 g

S: 16 cm

W: 91.9 g

S:17.5 cm

OBSERVATION

4) After staying in corn syrup for 24

hours , the egg looks shriveled up

5) After sitting in water for 24 hours the eggs have sunk and look larger

CONCLUSION

Water Egg

Got larger

Lower concentration

Went from high concentration to low concentration

Syrup Egg

Got smaller

Water moved out of the egg

Went from low to high concentration

CONCLUSION

Water egg-

My hypothesis was correct for the water egg because..

I said the weight would be more. Also increased in size and it looked bigger.

Corn syrup egg-

My hypothesis was also correct for the corn syrup egg because…

I said the weight would be less. Also decreased in size and it size and it looked smaller.