Question

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

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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