The Water Cycle, Water Distribution, and Properties of Water

Front

What two elements make up water?

Back

Hydrogen and oxygen.

Front

What property causes water to bead up on the surface of a penny?

Back

High Surface Tension.

Front

Why does ice float on water?

Back

As water freezes, it expands and its density decreases.

Front

Why is water considered a universal solvent?

Back

It dissolves most substances.

Front

What part of the water cycle is represented by condensation?

Back

Condensation is the process where water vapor cools and changes into liquid water.

Front

What is evaporation in the water cycle?

Back

Evaporation is the process where liquid water turns into water vapor.

Front

What is precipitation in the water cycle?

Back

Precipitation is any form of water that falls from the atmosphere to the Earth's surface, such as rain, snow, sleet, or hail.

Front

What is the significance of the water cycle?

Back

The water cycle is essential for distributing water across the planet, supporting ecosystems, and regulating climate.

Front

What is surface tension?

Back

Surface tension is the cohesive force between liquid molecules at the surface, allowing them to resist external force.

Front

What happens to water molecules when they freeze?

Back

Water molecules form a crystalline structure, causing them to take up more space and become less dense.