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Riley`s Egg osmosis experiment
- 1.
- 2. Purpose observe osmosis in a cell Place eggs in vinegar to remove shell Measure weight of egg Measure size of egg
- 3. Purpose Place 1 egg in water Place the other egg in corn syrup Weight and measure eggs again
- 4. Hypothesis Egg in corn syrup Weight-get heavier Size- get larger Look Like- stay in one piece
- 5. Hypothesis Egg in Water Weight- weigh more Size- get larger Look like- fall apart
- 6. Materials Eggs Beakers Balance String Measuring tape Vinegar Corn syrup water
- 7. Observations Before After Bubbles coming from egg Weight Weight Eggs out of vinegar- Corn 71.5 50.6 squishy, bouncy syrup Size Size 16 cm 14.5 cm Foam Weight Weight Water egg- Fatter Water 71.4 87.5 Corn syrup egg- Size Size deflated ,dented 16 cm 18.5 cm
- 8. Conclusion Water egg Got larger Water moved into egg Egg had lower concentration of water Water moved from higher concentration to lower concentration
- 9. Conclusion Got smaller Corn syrup egg Water moved out of the egg Egg had a higher water concentration Water moved from high concentration to low concentration This is osmosis
- 10. Conclusion-egg in cornsyrup Part correct part incorrect Correct- stay in one piece I thought that the egg would not sink so it won`t crack Incorrect- weight thought it would weigh more but it weighed less Incorrect- size thought it would get larger but it got smaller
- 11. Conclusion-egg in water Part correct part incorrect Correct-weight I said the egg will weigh more water will get into the egg so it will weigh more Correct- size I said the egg will get larger water will move into the egg so the egg will expand Incorrect- I said it will fall apart since it will sink to the bottom and crack but it did not