AP BIOLOGY

Detailed explanation-1: -This phenomenon is called capillary action and such tubes are called capillary.

Detailed explanation-2: -If you dip a paper towel in water, you will see it “magically” climb up the towel, appearing to ignore gravity. You are seeing capillary action in action, and “climbing up” is about right-the water molecules climb up the towel and drag other water molecules along.

Detailed explanation-3: -demonstrated when paper is absorbed by a water spill is called, adhesion.

Detailed explanation-4: -Adhesion makes a water drop a drop. Water is highly cohesive-it is the highest of the non-metallic liquids. Water is sticky and clumps together into drops because of its cohesive properties, but chemistry and electricity are involved at a more detailed level to make this possible.

Detailed explanation-5: -This upward motion against gravity, known as capillary action, depends on the attraction between water molecules and the glass walls of the tube (adhesion), as well as on interactions between water molecules (cohesion).