Properties Of Water Quiz Questions And Answers

This image demonstrates how surface tension is beneficial to living organisms. Surface tension is the cohesive force between molecules at the surface of a liquid, creating a "skin" that allows certain organisms to walk on water or create structures such as water striders. This property also helps organisms like insects, spiders, and plants to trap and collect water for survival. Surface tension also plays a role in the movement of water in plants through capillary action, allowing nutrients and water to be transported efficiently.

Water has a high specific heat, which means that it can absorb and retain a large amount of heat energy without significantly changing in temperature. This property allows water to effectively regulate body temperature through sweating. When we sweat, water evaporates from our skin, taking away heat from our body and cooling us down. The high specific heat of water helps in maintaining homeostasis, the stable internal temperature necessary for our survival.

Cohesion is the correct answer because it is one of the three properties of water that is involved in capillary action. Cohesion refers to the attraction between molecules of the same substance, in this case, water molecules. This cohesive force allows water molecules to stick together and form a continuous column in a narrow tube, such as a capillary. This cohesive force, along with adhesion (attraction between water molecules and the walls of the capillary) and surface tension, enables water to move against gravity in capillary action.

Capillary action is the phenomenon where water is able to move against gravity through narrow spaces, such as the tiny tubes in a plant's root or stem. This is possible due to the adhesive forces between water molecules and the walls of the capillaries. The water molecules are attracted to the capillary walls, causing them to rise and be absorbed into the plant. Therefore, capillary action is the characteristic of water that explains its molecular absorption into a plant's root or stem.

Water has a high specific heat, meaning it can absorb and store a large amount of heat energy without a significant change in temperature. This property allows water to act as a natural insulator, regulating the temperature of the Earth's surface and maintaining a stable climate.

The polar bear is relying on the property of density in relation to the ice cap. Density refers to the mass of a substance divided by its volume, and it determines whether an object will float or sink in a fluid. In this case, the polar bear is able to walk on the ice because the density of ice is lower than that of water. This allows the ice to support the weight of the polar bear without sinking.

Hydrogen bonds are created when the negative charge of oxygen in one molecule forms an electrostatic attraction with the positive charge of hydrogen in an adjacent molecule. This attraction is relatively weak compared to covalent or ionic bonds, but it is important in many biological and chemical processes.

The molecules shown in the image are interconnected by hydrogen bonds. Hydrogen bonds occur when a hydrogen atom is bonded to an electronegative atom (such as oxygen or nitrogen) and is attracted to another electronegative atom in a different molecule. This type of bond is weaker than covalent or ionic bonds but is still important in many biological processes, such as DNA replication and protein folding.

Oil is less dense than water as well as non-polar, with evidence being that oil sits on top of water as well as separates from water.

The first falling leaf of the season is able to float on top of the surface of the pond because there is not enough weight to break the hydrogen bonds between water molecules at the surface. Hydrogen bonds are relatively weak compared to covalent bonds, but they are still strong enough to hold the leaf up. The surface tension created by these hydrogen bonds allows the leaf to remain on top of the water rather than sinking.

The correct answer is "None of the above" because water is a polar molecule due to its bent shape and the unequal distribution of electrons between the oxygen and hydrogen atoms. This results in a slight negative charge on the oxygen atom and slight positive charges on the hydrogen atoms.

The correct answer is adhesion. Adhesion refers to the attraction between molecules of different substances. In the case of the water and string excitement, the water molecules are attracted to the string molecules, causing them to bond together. This is why the water stays bonded to the string and does not fall off.

As the temperature of water drops, water molecules bond in a crystalline form, which causes them to arrange themselves in a more organized structure. This arrangement increases the space between water molecules, leading to a decrease in the overall density of water. Therefore, the change described in the question is related to the characteristic of density.

Cohesion is the property of water that is directly responsible for maintaining the water bubble forming on the penny. Cohesion refers to the attraction between molecules of the same substance, in this case, water molecules. This attraction allows the water molecules to stick together, forming a bubble on the penny's surface.

Capillary action is the correct answer because it is the property of water that allows it to move against gravity in narrow spaces, such as the tiny gaps between the shaving cream and the postcard. This movement of water carries the food coloring along with it, creating the colorful design on the notecard.