Adhesion, Cohesion, Surface Tension Practice

Recall the tablet of chlorine that was added to the pool.

How does adhesion assist with the chlorine tablets distribution in

the pool?

• Adhesion allows chlorine tablets to stick to surfaces, promoting even distribution as they dissolve.
• Adhesion causes chlorine tablets to float on the surface of the pool.
• Adhesion makes chlorine tablets dissolve faster than normal.
• Adhesion prevents chlorine tablets from dissolving in water.

Which property of water allows a droplet of water to form on top of a penny and why?

• High density of water.
• Chemical composition of water.
• Surface tension of water.
• Low viscosity of water.

How does adhesion lead to the movement of water in a plant?

• Adhesion allows water to flow downward, away from the leaves in plants.
• Adhesion helps water move in plants by allowing it to cling to xylem walls, aiding in upward transport during transpiration.
• Adhesion prevents water from moving in plants by creating a barrier in the xylem.
• Adhesion causes water to evaporate quickly, reducing its movement in plants.

1. Capillary action happens because of what property of water?

• Adhesion

• Surface Tension

• Cohesion

• property

Which process is beneficial to living organisms, like the insect on water?

• Surface tension
• capillary action

• adhesion

• cohesion

Infer As the seasons begin to change, a leaf falls from a tree and lands on the surface of a pond. Instead of sinking, the leaf floats. What has happened to stop the leaf from sinking?

• A: The connection between the water molecules on the leaf molecules

  prevents the leaf from sinking.

• B: The connection between the water molecules on the surface of the

  water is very strong and prevents the leaf from sinking.

• C: The connection between the air molecules on the leaf molecules is

  very strong and prevents the leaf from sinking.

• D: The gravitational force on the leaf is very small so there is not enough

  weight to allow the leaf to sink into the water.

Once water has entered the soil, there is one major force that gets the water to the roots and up the plant; the force of adhesion. Recall that adhesion is the attraction and connection of non-like molecules.

Without adhesion the water would not move!

Analyze How does cohesion also play a role in soil water?

• Cohesion prevents water from moving through the soil.
• Cohesion causes water to evaporate before reaching the roots.
• Cohesion has no effect on water movement in plants.
• Cohesion helps maintain a continuous column of water in the plant, enabling efficient upward movement through transpiration.

Tags

NGSS.MS-ESS2-4

How does cohesion and adhesion play a role in keeping the fruits and vegetables hydrated when they are sprayed with the water mist?

• Cohesion prevents water from sticking to surfaces.
• Adhesion causes water to evaporate quickly from fruits.
• Cohesion and adhesion have no effect on hydration.
• Cohesion and adhesion help keep fruits and vegetables hydrated by allowing water to form a continuous layer on their surfaces and stick to them.

Reference the photo of water droplets hanging from pine needles. Which statement correctly describes the forces acting on the droplets of water?

• Adhesion and cohesion cause the water molecules to stick together, forming a droplet. Adhesion causes the water to stick to the pine needle, preventing droplets from falling off.

• Adhesion causes the water molecules to stick together, forming a droplet. Cohesion causes the water to stick to the pine needle, preventing droplets from falling off.

• Cohesion causes the water molecules to stick together, forming a droplet. Adhesion causes the water to stick to the pine needle, preventing droplets from falling off.

• Cohesion causes the water molecules to stick together, forming a droplet. Adhesion and cohesion cause the water to stick to the pine needle, preventing droplets from falling off.

Tags

NGSS.MS-PS2-5

Four students were asked to compare cohesion and adhesion using a table.

Which student’s table is NOT correct?

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