Water

Ice floats because it is __________________ dense than water

• less

• more

When water is cooled to its _____________point, it changes into ice

• freezing

• boiling

Which of the following statements is true?

• Most evaporation happens at the earth's poles

• The total amount of water on the earth stays the same

• Water enters the atmosphere though condensation

• New water is created by the water cycle

Water is unique because

• its solid state is less dense than its liquid state

• it exists on earth in solid, liquid, and gas form

• it is elastic and sticky

• all of the above

Density is a measure of how much

• moisture is in the air

• material is packed into a space

• water is on earth

• temperature is needed to boil water

At normal temperatures, water is a

• gas

• liquid

• solid

How is water used by the body

• delivers food to cells

• carries away cell waste

• helps break down food

• all of the above

Which of the following statements is true

• Cold air can hold more moisture than warm air

• Most of the earth's water is trapped in glaciers

• Water's stickiness helps plants transport it up their stems

• all of the above

Which of the following statements is true

• Water takes a long time to absorb heat

• Condensation is the opposite of precipitation

• When water freezes. it shrinks and takes up less space

• At normal temperatures, water is a solid

The amount of water returning to the earth through precipitation ____________________the amount of water leaving through evaporation

• more than

• equal to

• less than