The characteristic properties of a substance are always the same whether the sample being observed is large or small. Examples of characteristic properties include freezing/melting point, boiling/condensing point, density, viscosity, and solubility.

Physical properties are used to observe and describe matter. Physical properties include: appearance, texture, color, odor, melting point, boiling point, density, solubility, polarity, and many others.

All substances have distinct physical and chemical properties, and may undergo physical or chemical changes. Physical properties, such as hardness and boiling point, and physical changes, such as melting or freezing, do not involve a change in the composition of matter.

It’s important for scientists to know the properties of matter because all things are made up of matter. Each type of matter has different physical characteristics and scientists need to know and understand these characteristics to make calculations. The main phases of matter are solid, liquid, and gas.

Physical Properties

• color (intensive)
• density (intensive)
• volume (extensive)
• mass (extensive)
• boiling point (intensive): the temperature at which a substance boils.
• melting point (intensive): the temperature at which a substance melts.

The three basic properties of matter are volume, mass, and shape.

Today we will learn about the following measurable properties of matter: length, mass, temperature, and volume. 3 LENGTH Length is the measurement of something from end to end.

1 Physical Agents. Physical properties of water are related to the appearance of water, namely, the color, temperature, turbidity, taste, and odor.

The main properties of water are its polarity, cohesion, adhesion, surface tension, high specific heat, and evaporative cooling. A water molecule is slightly charged on both ends.

Terms in this set (7)

• Universal solvent. Water can dissolve many ionic and polar molecules.
• Cohesion. Cohesion happens due to hydrogen bonding interactions water can stick to itself.
• Adhesion. Adhesion- water sticks to other surfaces.
• High Surface Tension.
• Capillary Action.
• High Specific Heat.
• Low Density as a Solid.

Unique properties of water

• Water is polar.
• Water is an excellent solvent.
• Water has high heat capacity.
• Water has high heat of vaporization.
• Water has cohesive and adhesive properties.
• Water is less dense as a solid than as a liquid.

Reading Assignment

• Boiling and freezing points.
• Surface tension, heat of vaporization, and vapor pressure.
• Viscosity and cohesion.
• Solid state.
• Liquid state.
• Gaseous state.

Terms in this set (14)

• List the Six Properties of Water. cohesion, adhesion, high specific heat, evaporative cooling, lower density as solid, universal solvent.
• Mnemonic. (CAHELU)
• cohesion (meaning)
• cohesion (benefit)
• adhesion (meaning)
• adhesion (benefit)
• high specific heat (meaning)
• high specific heat (benefit)

Water molecules form hydrogen bonds with each other and are strongly polar. Its hydrogen bonding causes its many unique properties, such as having a solid form less dense than its liquid form, a relatively high boiling point of 100 °C for its molar mass, and a high heat capacity.

Because water seems so ubiquitous, many people are unaware of the unusual and unique properties of water, including:

• Boiling Point and Freezing Point.
• Surface Tension, Heat of Vaporization, and Vapor Pressure.
• Viscosity and Cohesion.
• Solid State.
• Liquid State.
• Gas State.

The five main properties that will be discussed in this article are its attraction to polar molecules, its high specific heat, the high heat of vaporization, the lower density of ice, and its high polarity.

Water’s extensive capability to dissolve a variety of molecules has earned it the designation of “universal solvent,” and it is this ability that makes water such an invaluable life-sustaining force. On a biological level, water’s role as a solvent helps cells transport and use substances like oxygen or nutrients.

A water molecule can form a maximum of four hydrogen bonds by accepting two hydrogen atoms and donating two hydrogen atoms. One such property is its relatively high melting and boiling points; more energy is required to break the hydrogen bonds between molecules in order to change to a higher energy phase.

Density is important when working out if something will float in water, and it can also be useful for calculating the mass of a specific volume of a substance.

The heat capacity of water is more than twice the heat capacity of natural mineral and rock material. This tends to even out temperature differences on Earth, from day to night and from summer to winter. Water is also the best all-around solvent. More solid substances dissolve in water than in any other liquid.

Terms in this set (8)

• Surface Tension. Cohesion allows water to pull together & forn droplets; or form an interface between it & other surfaces.
• Adhesion. Sticking of one stubstance to another.
• Imbibition.
• High Specific Heat.
• Cohesion.
• High Heat of Vaporization.
• Frezzing & Expansion Of Water.
• Versatile Solvent.

Fresh water is necessary for the survival of all living organisms on Earth. Our bodies are made up of about 60% water and we cannot survive more than a few days without it. Water is also an integral part of many ecosystems that support us and a myriad of other species. …

Water. Liquid water is an essential requirement for life on Earth because it functions as a solvent. It is capable of dissolving substances and enabling key chemical reactions in animal, plant and microbial cells. Its chemical and physical properties allow it to dissolve more substances than most other liquids.

Life as we know it requires biogenic elements, a source of energy, liquid water, and a suitable, reasonably stable environment for evolution to take place.

A team of scientists at the Tel Aviv University in Israel have found life-form that can survive without oxygen. Some lower single-celled organisms or eukaryotes are able to respire without oxygen with a process known as anaerobic respiration.

Human beings have certain basic needs. We must have food, water, air, and shelter to survive.