Water Properties

Front

What is the atomic number of an element?

Back

The atomic number is the number of protons in the nucleus of an atom, which defines the element and its position in the periodic table.

Front

What is the chemical formula for salt?

Back

The chemical formula for salt is NaCl, which is composed of sodium (Na) and chlorine (Cl) ions.

Front

What percentage of Earth's water is freshwater?

Back

Only 2.5% of Earth's water is freshwater.

Front

What property of water allows it to absorb a large amount of heat energy without significantly changing temperature?

Back

This property is known as high specific heat capacity.

Front

What is condensation in the water cycle?

Back

Condensation is the process where water vapor in the atmosphere cools and turns back into liquid water or ice crystals.

Front

Define high specific heat capacity.

Back

High specific heat capacity is the ability of a substance to absorb and store large amounts of heat energy with only a small change in temperature.

Front

What is the significance of water's high surface tension?

Back

Water's high surface tension allows it to form droplets and enables small objects, like insects, to float on its surface.

Front

Explain the term 'density' in relation to water.

Back

Density is the mass of a substance per unit volume. Water is unique because it is less dense as a solid (ice) than as a liquid.

Front

What is the process of transpiration?

Back

Transpiration is the process by which water is absorbed by plant roots, moves through plants, and is released as vapor through pores in leaves.

Front

What is the role of water in temperature regulation for living organisms?

Back

Water helps regulate temperature in living organisms due to its high specific heat capacity, allowing for stable internal conditions.