Understanding Water Properties

Why does ice float on water?

• Because ice is warmer than water

• Because ice has a lower density than water

• Because ice is heavier than water

• Because ice is denser than water

What happens to water molecules when ice melts?

• They move further apart

• They form a regular pattern

• They become jumbled and get closer

• They freeze into a solid

At what temperature does water boil at sea level?

• 50 degrees Celsius

• 0 degrees Celsius

• 100 degrees Celsius

• 150 degrees Celsius

How does the boiling point of water change at high altitudes?

• It becomes unpredictable

• It remains the same

• It decreases

• It increases

What percentage of Earth's water is drinkable?

• 3%

• 50%

• 70%

• 10%