States of Matter

Which of the following can be highly compressed? 1) Water 2) Nitrogen gas 3)Milk 4) An iron bar

2) Nitrogen gas

Which of the following best explains why solids do not change much when pressure is applied to them? 1) The particles in a solid have large spaces between them 2) The particles in a solid keep vibrating. 3) The particles in a solid are packed very close to each other. 4) None of the above

3) The particles in a solid are packed very close to each other.

How will freezing juice affect its mass?

Freezing the juice will not change its mass.

What is a gas?

Gas isn't rigid, no fixed shape, no fixed volume, can be squashed, & takes up all space.

Christopher has 3 identical test tubes that contain a solid, liquid, & gas form of the same substance. Which form of the substance has the largest volume and why?

Gas: It expands to fill the container

The water cycle is a complex system. In it, water changes states. Sometimes it is a liquid. Sometimes it is a solid. Other times it can become a gas. What change occurs when water is boiled?

Liquid becomes a gas.

What is a liquid?

Liquid isn't rigid, has no fixed shape, fixed volume, & cant be squashed.

What is a solid?

Solid is rigid, has a fixed shape, fixed volume, & cant be squashed.

NOTE- ADDITIONAL INFORMATION

Some substances exist as gases at room temperature (oxygen and carbon dioxide), while others, like water and mercury metal, exist as liquids. Most metals exist as solids at room temperature. All substances can exist in any of these three states.

NOTE- ADDITIONAL INFORMATION

Technically speaking a fourth state of matter called plasma exists, but it does not naturally occur on earth, so we will omit it from our study here.

NOTE- ADDITIONAL INFORMATION

Water can take many forms. At low temperatures (below 0°C), it is a solid. When at "normal" temperatures (between 0°C and 100°C), it is a liquid. While at temperatures above 100°C, water is a gas (steam)

What would cause water to turn from a gas to a liquid?

decreasing the water's temperature

True or False? Liquids are denser than gases

true