Property of Water

Why does ice float?

• As water freezes, it expands and its density decreases.

• As water freezes, it takes up more hydrogen from the atmosphere, causing it to have a greater buoyancy.

• As water freezes, air becomes trapped between the hydrogen bonds of water molecules.

• As water freezes, it takes up more oxygen from the atmosphere, causing it to have a greater buoyancy.

Water is often called the "universal solvent" because many substances can be dissolved in water. What property of water allows it to be such a versatile solvent? 

• purity

• polarity and cohesion

• high heat capacity

• expansion upon freezing

Water makes up approximately 60% of the human body and plays a vital role in regulating body temperature. Which property of water makes it good at regulating temperature?

• Water is a good solvent.

• Water exhibits strong cohesion.

• . Water has an unusual crystalline structure.

• Water has a high capacity for heat.

Tags

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Water is essential for life. Its special properties make water the single most important molecule in plant life. Which of the following properties of water enables it to move from the roots to the leaves of plants?

• Water expands as it freezes.

• Water is an excellent solvent.

• Water exhibits cohesive behavior.

• Water is able to moderate temperature.

Water molecules are attracted to other kinds of molecules because of the property.

• Cohesion

• Adhesion

• Surface Tension

• Universal Solvent

A high specific heat means...

• It heats up quickly with energy added

• It requires more energy to change temperature

Which of the following allows water to be transported throughout our body?

• polarity

• cohesion

• water is less dense in a solid state

• surface tension

Ben observed that puddles outside seem to disappear more quickly when it is a sunny day. He decided to test this by setting up an experiment in which he placed a graduated cylinder with 10 ml of water in a dark closet and a graduated cylinder with 10 ml of water by the window. Each day he measured the amount of water.

What did Ben change in this experiment?

• the amount of sunlight on the water

• the amount of water in the cup

• the kind of cup

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What property of water allows it to have a high surface tension?

• Cohesion between water molecules

• Adhesion to other surfaces

• High specific heat

• Universal solvent ability

Which property of water is responsible for its ability to dissolve many substances?

• High heat capacity

• Polarity

• Low density

• High surface tension