Standard #: SC.912.L.18.12


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Discuss the special properties of water that contribute to Earth's suitability as an environment for life: cohesive behavior, ability to moderate temperature, expansion upon freezing, and versatility as a solvent.


General Information

Subject Area: Science
Grade: 912
Body of Knowledge: Life Science
Standard: Matter and Energy Transformations -

A. All living things are composed of four basic categories of macromolecules and share the same basic needs for life.

B. Living organisms acquire the energy they need for life processes through various metabolic pathways (primarily photosynthesis and cellular respiration).

C. Chemical reactions in living things follow basic rules of chemistry and are usually regulated by enzymes.

D. The unique chemical properties of carbon and water make life on Earth possible.

Date Adopted or Revised: 02/08
Content Complexity Rating: Level 2: Basic Application of Skills & Concepts - More Information
Date of Last Rating: 05/08
Status: State Board Approved
Assessed: Yes

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Related Access Points

Access Point Number Access Point Title
SC.912.L.18.In.7 Identify that special properties of water, such as the ability to moderate temperature and dissolve substances, help to sustain living things on Earth.
SC.912.L.18.Su.6 Identify the important role of water in sustaining life of plants and animals.
SC.912.L.18.Pa.5 Recognize that plants and animals use water to live.


Related Resources

Lesson Plans

Name Description
A Whole New World: The Search for Water 5E Lesson

In this lesson, students will run a variety of tests on different liquids. During their experimentation, students will collect data, graph data, collaborate and discuss their findings, compare their findings to known characteristics of water, make a claim, provide evidence and justification to support their claim, and create an advisory report of their findings. Students will run various tests on several different liquids and compare those characteristic to those of water. Students will gain an understanding that water is unlike other liquids in the way that it moderates temperature, in its cohesive strength, in its ability to expand upon freezing, in its pH neutrality, and in its designation as the "universal solvent."

Water as a Solvent

The lesson is an activity introducing the versatility of water as a solvent. Students will initially predict the solubility of a substance by matching the substance with an appropriate solvent. Then the concepts involved in solubility, ionic compounds versus covalent compounds, and polar compounds versus non-polar compounds will be presented. Students will have an opportunity to present and discuss the reasoning behind making their selection of a solvent for a particular solute.

Testing water for drinking purposes

The importance of knowing what drinking water contains. How to know what properties are present in different bottled water. Knowing the elements present in water that is advantageous to growth and development of many things in the body. To know what to be alert for in water and to understand the importance of water in general.

Model Eliciting Activities, MEAs, are open-ended, interdisciplinary problem-solving activities that are meant to reveal students’ thinking about the concepts embedded in realistic situations. Click here to learn more about MEAs and how they can transform your classroom.

The Seven Major Properties of Water

The goal of this lesson is that students will be able to conduct mini-experiments that demonstrate how water behaves. Students will perform the experiment, collect the data, diagram results, and generate a definition of the seven properties of water.

Original Student Tutorial

Name Description
Water and Life

Learn how the chemical properties of water relate to its physical properties and make it essential for life with this interactive tutorial.

Perspectives Video: Professional/Enthusiast

Name Description
Nestle Waters & Statistical Analysis <p>Hydrogeologist&nbsp;from Nestle Waters discusses the importance&nbsp;of statistical tests in monitoring&nbsp;sustainability and in maintaining consistent&nbsp;water quality in bottled water.</p>

Text Resources

Name Description
New GPM Video Dissects the Anatomy of a Raindrop

This informational text resource is intended to support reading in the content area. This article by NASA explains the physical reasons why the shape of a raindrop is more bun-shaped than tear-shaped.

Life's Little Essential

This informational text resource is intended to support reading in the content area. The article explains why water is so essential and the properties of water that make it critical for life on Earth.

Tutorial

Name Description
How Polarity Makes Water Behave Strangely

Water is both essential and unique. Many of its particular qualities stem from the fact that it consists of two hydrogen atoms and one oxygen, therefore creating an unequal sharing of electrons. From fish in frozen lakes to ice floating on water, Christina Kleinberg describes the effects of polarity.

Video/Audio/Animations

Name Description
Water and Life Paul Anderson begins with a brief description of NASA discoveries related to Mars, Mercury and water. He then explains why water is required for life. He finally uses a simulation to show you why water acts as a wonderful solvent and provides a medium for metabolism.
Water: A Polar Molecule Mr. Andersen explains why water is a polar molecule. He also explains why this gives water properties like cohesion, high specific heat, less dense ice, and the ability to act as a solvent. All of these properties are due to hydrogen bonding.

Student Resources

Original Student Tutorial

Name Description
Water and Life:

Learn how the chemical properties of water relate to its physical properties and make it essential for life with this interactive tutorial.

Tutorial

Name Description
How Polarity Makes Water Behave Strangely:

Water is both essential and unique. Many of its particular qualities stem from the fact that it consists of two hydrogen atoms and one oxygen, therefore creating an unequal sharing of electrons. From fish in frozen lakes to ice floating on water, Christina Kleinberg describes the effects of polarity.



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