Classify each statement as an example of adhesion, cohesion, or surface tension

Question

1. A seeing needle floats when it is placed gently on top of water in a bucket
2. Water molecules cling to the side of a beaker
3. A water strider runs across a pond without breaking the surface
4. A drop of water spilled on a table forms a drop on the table, rather than spreading out over the surface

Answer 1

Here’s the classification of each statement:

1. A seeing needle floats when it is placed gently on top of water in a bucket - Surface Tension
2. Water molecules cling to the side of a beaker - Adhesion
3. A water strider runs across a pond without breaking the surface - Surface Tension
4. A drop of water spilled on a table forms a drop on the table, rather than spreading out over the surface - Cohesion

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