Based on the analysis of each pair of beakers, here is the solution to the osmosis worksheet:
General Rule:
Water moves from an area of lower solute concentration (higher water concentration) to an area of higher solute concentration (lower water concentration). The solution with the higher solute concentration is hypertonic, the one with the lower solute concentration is hypotonic, and if they are equal, they are isotonic.
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Top Row:
1.
Left Pair (90% H2O / 10% solute vs. 40% H2O / 60% solute):
* Water moves from the left beaker to the right beaker.
* Left beaker: Hypotonic
* Right beaker: Hypertonic
2.
Middle Pair (75% H2O / 25% solute vs. 80% H2O / 20% solute):
* Water moves from the right beaker to the left beaker.
* Left beaker: Hypertonic
* Right beaker: Hypotonic
3.
Right Pair (80% H2O / 20% solute vs. 75% H2O / 25% solute):
* Water moves from the left beaker to the right beaker.
* Left beaker: Hypotonic
* Right beaker: Hypertonic
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Middle Row:
4.
Left Pair (85% H2O / 15% solute vs. 45% H2O / 55% solute):
* Water moves from the top beaker to the bottom beaker.
* Top beaker: Hypotonic
* Bottom beaker: Hypertonic
5.
Middle Pair (90% H2O / 10% solute vs. 93% H2O / 7% solute):
* Water moves from the bottom beaker to the top beaker.
* Top beaker: Hypertonic
* Bottom beaker: Hypotonic
6.
Right Pair (80% H2O / 20% solute vs. 50% H2O / 50% solute):
* Water moves from the top beaker to the bottom beaker.
* Top beaker: Hypotonic
* Bottom beaker: Hypertonic
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Bottom Row:
7.
Left Pair (75% H2O / 25% solute vs. 90% H2O / 10% solute):
* Water moves from the bottom beaker to the top beaker.
* Top beaker: Hypertonic
* Bottom beaker: Hypotonic
8.
Middle Pair (63% H2O / 37% solute vs. 25% H2O / 75% solute):
* Water moves from the top beaker to the bottom beaker.
* Top beaker: Hypotonic
* Bottom beaker: Hypertonic
9.
Right Pair (80% H2O / 20% solute vs. 50% H2O / 50% solute):
* Water moves from the left beaker to the right beaker.
* Left beaker: Hypotonic
* Right beaker: Hypertonic
This completes the solution for all nine pairs of beakers on the worksheet.
Parent Tip: Review the logic above to help your child master the concept of osmosis and diffusion worksheet.
