Question

1. observe: another way that phases are different is how they fill a container. press chill until the water is completely frozen. observe the ice without the magnifying glass.

a. does the ice reach the top of the container, where the lid is? __________
b. click heat until the ice is gone. does the liquid water reach the top? __________
c. click heat until the water boils. does the water vapor reach the top? __________

1. draw conclusions: which phase always fills its container? ______________

which phases do not always fill their containers? ____________ and ____________

Explanation:

These questions are based on the properties of the three phases of water (solid, liquid, gas). Solids have a fixed shape and volume, liquids have a fixed volume but take the shape of their container, and gases expand to fill the entire container they are in.

1. For question 4A: When water freezes into ice, it expands but does not fill the entire container up to the lid (it has a fixed volume and shape).
2. For question 4B: Liquid water has a fixed volume, so it will not reach the top of the container (it only fills up to its volume level).
3. For question 4C: Water vapor is a gas, which expands to fill the entire container, so it reaches the top.
4. For question 5: Gases always fill their containers. Solids and liquids have fixed volumes, so they do not always fill their containers.

Answer:

1. A. No

B. No
C. Yes

1. Which phase always fills its container? Gas (water vapor)

Which phases do not always fill their containers? Solid (ice) and Liquid (liquid water)