Show:
Evaporation
Condensation
Molecules
Cups
Changes
100
What is it called when water changes into water vapor?
Evaporation
100
What happens to water's states of matter during condensation?
Water changes from water vapor back into liquid drops.
100

How are solid, liquid, and gas molecules spaced?

tight, apart, loosely

100

What cup developed the most condensation on the outside when we did the cup experiments?

The metal cup

100

What do we call water droplets on the outside of a cold cup?

Condensation

200
What three states of matter does water take on?
Gas, liquid and solid
200
What kind of surface or air temperature does water vapor need to touch for condensation to happen?
A cold surface or cold air
200

In the simulator, how would you describe molecules in boiling water?

Moving around quickly, randomly.

200

Which cup did the best overall for keeping a beverage colder for longer?

Double metal cup

200

What changes would you see if you heated snow in a pot on the stov for 8 hours.

Solid to liquid to gas

300
Do hotter or colder temperatures make water evaporate faster?
Hotter temperatures
300
What are the steps of the water cycle?
Warming, evaporation, condensation, precipitation
300

What phase in the simulator showed us the fewest number of molecules.

Gas/vapor

300

A cup system with a straw hole that has been taped has been changed to a ___________?

Closed system

300

What would happen to the molecules in a cup of water if placed in the freezer for a few hours?

They slow down.

400

What is a tool used to measure mass?

Scale

400
Does evaporation cause condensation? Why or why not?
Yes it does. In order for water to turn back into liquid during condensation, there must be water vapor in the air that resulted from evaporation.
400

What happens to water as the temperature goes from 0 to 100 and then 120 degrees C?

It goes from solid to liquid to gas.

400

What happens in a cup system with hot water and a lid that is loose when you observe the mass before and after 10 minutes?

The mass drops

400

What phase change occurs when you take boiling water in a pot with a lid, off the stove and let it sit overnight.

Gas back to liquid

500
Does a larger or smaller surface area cause water to evaporate faster?
Larger surface area
500
Explain how the water cycle has operated through Earth's history.
The water cycle has used the same water since the beginning of time. No new water is added to the Earth. It is recycled through the water cycle.
500

Tell me three things about how ice molecules look and behave.

They are still, but vibrating in a pattern.

500

What happens to the mass in a closed cup system filled with ice cold water on a warm day?

It increases.

500

What happens to the mass of a pot of boiling water on the stove with no lid, over an hour.

It decreases.