Properties of water

What force allows water droplets to form and stay on the surface of a coin?

• Gravity

• Adhession

• Surface Tension

• Cohession

In the experiment with pepper on water, what property causes the pepper particles to move away from the center of the dish?

• Gravity

• Adhession

• Surface Tension

• Cohession

Why do small objects like paperclips float on the surface of water?

• Due to gravity pulling them down

• Because they are less dense than water

• Adhesion between the water and the object

• Surface tension supporting the object

How does this animal able to walk on the water

• Due to gravity pulling them down

• Because they are less dense than water

• Adhesion between the water and the object

• Surface tension supporting the object

What fundamental property of water is demonstrated in both experiments involving surface tension and adhesion?

• Buoyancy

• Density

• Cohesion

• Evaporation

 How does soap affect the surface tension of water when blowing soap bubbles?

•  Increases surface tension

• Decreases surface tension

• Does not affect surface tension

• Changes cohesion

What happens to the pepper particles when they are sprinkled on the surface of water?

• They sink to the bottom of the container.

• They float on the surface of the water.

• They disperse evenly throughout the water.

• They form clumps on the surface of the water.

: How does surface tension contribute to the formation and stability of water droplets on a coin's surface?

• Surface tension repels water molecules, causing them to form droplets.

• • Surface tension attracts water molecules, causing them to spread out evenly.

• Surface tension reduces adhesion, preventing droplets from forming.

• Surface tension creates a "skin" on the water's surface, holding droplets together.

What observation can you make about the movement of pepper particles when liquid soap is added to water?

• They move towards the center of the dish.

• • They remain stationary on the surface of the water.

• • They move away from the center of the dish.

• • They sink to the bottom of the container.