Science Experiment with a Clicky Pen

What is the initial observation made when the spring from the clicky pen is placed in water?

• The spring sinks immediately.

• The spring dissolves in water.

• The spring changes color.

• The spring floats on the water.

Why does the spring initially float on the water?

• Because the spring is made of a special metal.

• Because the water is denser than the spring.

• Because of the surface tension created by water molecules.

• Because the spring is hollow.

What role do water molecules play in supporting the spring?

• They push the spring upwards with force.

• They create a tightly bonded surface that acts as a net.

• They dissolve the spring partially.

• They change the temperature of the water.

What happens when soap is introduced to the water?

• The spring starts to float higher.

• The surface tension is disrupted, causing the spring to sink.

• The water becomes more viscous.

• The water changes color.

How does soap affect the water molecules on the surface?

• It strengthens the hydrogen bonds between them.

• It breaks the hydrogen bonds, reducing surface tension.

• It causes the water to evaporate.

• It makes the water molecules heavier.