State Changes of Water

Click on the flashcard to see the answer



What is the process called when water changes from a solid to a liquid?

Melting.

At what temperature does water typically freeze?

0 degrees Celsius or 32 degrees Fahrenheit.

What is the name of the process when water changes from a liquid to a gas?

Evaporation.

During which process does water change from gas to liquid?

Condensation.

What is the process called when water goes directly from solid to gas?

Sublimation.

What state of matter is ice?

Solid.

At what temperature does water boil at sea level?

100 degrees Celsius or 212 degrees Fahrenheit.

What is the opposite of melting in terms of state changes?

Freezing.

Name the process when water vapor turns into ice without becoming liquid first.

Deposition.

Why does condensation occur?

It occurs when water vapor cools and loses energy, changing into liquid form.

Where does evaporation commonly occur other than in boiling?

Evaporation commonly occurs from bodies of water like lakes, rivers, and oceans.

What factors can affect the rate of evaporation?

Temperature, surface area, humidity, and air movement.

Which state of water has the most energy: solid, liquid, or gas?

Gas.

How does pressure affect the boiling point of water?

Increased pressure raises the boiling point, while decreased pressure lowers it.

What is the significance of latent heat in phase changes?

Latent heat is the energy absorbed or released during a phase change without changing temperature.




Test Your Knowledge

Select the correct option


1. What is the process called when water changes from a solid to a liquid?

Freezing.

Evaporation.

Melting.

Condensation.

2. At what temperature does water typically freeze?

100 degrees Celsius or 212 degrees Fahrenheit.

0 degrees Celsius or 32 degrees Fahrenheit.

-10 degrees Celsius or 14 degrees Fahrenheit.

0 degrees Kelvin.

3. What is the name of the process when water changes from a liquid to a gas?

Evaporation.

Condensation.

Sublimation.

Freezing.

4. During which process does water change from gas to liquid?

Melting.

Condensation.

Evaporation.

Sublimation.

5. What is the process called when water goes directly from solid to gas?

Condensation.

Melting.

Sublimation.

Deposition.

6. What state of matter is ice?

Solid.

Liquid.

Gas.

Plasma.

7. At what temperature does water boil at sea level?

100 degrees Celsius or 212 degrees Fahrenheit.

90 degrees Celsius or 194 degrees Fahrenheit.

0 degrees Celsius or 32 degrees Fahrenheit.

37 degrees Celsius or 98.6 degrees Fahrenheit.

8. What is the opposite of melting in terms of state changes?

Evaporation.

Sublimation.

Freezing.

Condensation.

9. Name the process when water vapor turns into ice without becoming liquid first.

Sublimation.

Deposition.

Melting.

Evaporation.

10. Why does condensation occur?

It occurs when water vapor cools and loses energy, changing into liquid form.

It occurs when water warms up and gains energy, changing into gas form.

It occurs when water solidifies from a liquid.

It happens when ice directly turns into gas.

11. Where does evaporation commonly occur other than in boiling?

On metal surfaces.

In closed containers.

Evaporation commonly occurs from bodies of water like lakes, rivers, and oceans.

Inside solid objects.

12. What factors can affect the rate of evaporation?

Temperature, surface area, humidity, and air movement.

Color, weight, and density.

Size, length, and width.

Shape and volume.

13. Which state of water has the most energy: solid, liquid, or gas?

Gas.

Liquid.

Solid.

Plasma.

14. How does pressure affect the boiling point of water?

Increased pressure raises the boiling point, while decreased pressure lowers it.

Increased pressure lowers the boiling point, while decreased pressure raises it.

Pressure has no effect on the boiling point.

Boiling point is only affected by temperature.

15. What is the significance of latent heat in phase changes?

Latent heat is the energy absorbed or released during a phase change without changing temperature.

Latent heat is responsible for a temperature increase during phase changes.

Latent heat determines the pressure of a substance.

Latent heat only affects gases.