Exploring the Unique Properties of Water

Why is water considered essential for life?

• It is the most abundant element in the universe.

• It is the only liquid that can dissolve all substances.

• It is a good conductor of electricity.

• It makes up a significant portion of living organisms and the Earth's surface.

What type of bond holds individual water molecules together?

• Metallic bonds

• Polar covalent bonds

• Non-polar covalent bonds

• Ionic bonds

What property of water allows insects like the Jesus Lizard to run on its surface?

• High specific heat

• High surface tension

• Low density

• High heat of vaporization

How does water's adhesive property benefit plants?

• It makes water a good solvent for nutrients.

• It helps water to evaporate quickly.

• It allows water to form droplets on leaves.

• It enables water to climb up plant stems through xylem tubes.

What is the process called that allows water to be pulled up through plants?

• Transpiration

• Photosynthesis

• Condensation

• Respiration

Why does water have a high specific heat?

• Because of its low molecular weight

• Due to extensive hydrogen bonding

• Because it is a polar molecule

• Due to its high density

How does water's high specific heat support life?

• It makes water a good solvent for all substances.

• It helps maintain stable temperatures in organisms and environments.

• It allows water to evaporate quickly.

• It allows water to freeze at higher temperatures.

What is evaporative cooling?

• The process of water freezing to cool down an organism.

• The process of water boiling to cool down an organism.

• The process of water evaporating and taking heat energy with it.

• The process of water condensing to release heat.

Why does ice float on water?

• Because ice is denser than liquid water.

• Because ice is less dense than liquid water.

• Because ice has a higher specific heat.

• Because ice has a higher surface tension.

How does the floating ice benefit aquatic life during winter?

• It provides a habitat for land animals.

• It insulates the water below, keeping it from freezing solid.

• It allows more sunlight to penetrate the water.

• It increases the water temperature.