<img src="https://d5nxst8fruw4z.cloudfront.net/atrk.gif?account=iA1Pi1a8Dy00ym" style="display:none" height="1" width="1" alt="" />
Due to system maintenance, CK-12 will be unavailable on Friday, 3/31/2017 from 3:30pm to 5:30p.m. PT.

# Gases

## Introduction to one of the four states of matter that has no fixed volume or shape.

Levels are CK-12's student achievement levels.
Basic Students matched to this level have a partial mastery of prerequisite knowledge and skills fundamental for proficient work.
At Grade (Proficient) Students matched to this level have demonstrated competency over challenging subject matter, including subject matter knowledge, application of such knowledge to real-world situations, and analytical skills appropriate to subject matter.
Advanced Students matched to this level are ready for material that requires superior performance and mastery.

## Gases

Properties of gases, why they exert pressure and atmospheric pressure.
MEMORY METER
This indicates how strong in your memory this concept is
43

## Gases

by Riffle Walker //basic
Properties of gases, why they exert pressure and atmospheric pressure.
MEMORY METER
This indicates how strong in your memory this concept is
0

## Gases

by Kerry Bolton //basic
Properties of gases, why they exert pressure and atmospheric pressure.
MEMORY METER
This indicates how strong in your memory this concept is
0

## 기체

기체의 성질, 기체의 압력과 대기압
MEMORY METER
This indicates how strong in your memory this concept is
0

## Gases

by Ledea Obrist //basic
Properties of gases, why they exert pressure and atmospheric pressure.
MEMORY METER
This indicates how strong in your memory this concept is
1

## Gases

Properties of gases, why they exert pressure and atmospheric pressure.
MEMORY METER
This indicates how strong in your memory this concept is
1

## Gases

Properties of gases, why they exert pressure and atmospheric pressure.
MEMORY METER
This indicates how strong in your memory this concept is
0

## Gases

Properties of gases, why they exert pressure and atmospheric pressure.
MEMORY METER
This indicates how strong in your memory this concept is
0

## Gases SG

Properties of gases, why they exert pressure and atmospheric pressure.
MEMORY METER
This indicates how strong in your memory this concept is
0
• Video

## Properties of Gases

by Rico Lin //basic
This video discusses how the molecular behavior in gases allows them to have certain unique properties, such as compressibility, volume, and pressure. It then explains the pressure formula and real world applications of pressure, such as how our ears pop when fly in high altitudes.
MEMORY METER
This indicates how strong in your memory this concept is
1

## Gases Quiz - MS PS

Reviews the properties of gases, why gases exert pressure, and atmospheric pressure.
MEMORY METER
This indicates how strong in your memory this concept is
3
• 2
• Real World Application

## Pop Rock Explosion

by CK-12 //basic
Find out why pop rock candy pops and fizzes in your mouth.
MEMORY METER
This indicates how strong in your memory this concept is
9
• Real World Application

## Breathing Muscles

by CK-12 //basic
Find out how muscles and Boyle's law explain how we move air into and out of our lungs.
MEMORY METER
This indicates how strong in your memory this concept is
0
• Real World Application

## Crash Test Dummies

by CK-12 //basic
Find out the chemical reactions and physical laws that explain how car airbags work.
MEMORY METER
This indicates how strong in your memory this concept is
3
• Real World Application

## Pump It Up

by CK-12 //basic
Learn how pressure inside bike tires is related to temperature and how to keep your bike tires at a safe pressure.
MEMORY METER
This indicates how strong in your memory this concept is
1
• Flashcards

## Gases

by Ellaine Chou //basic
These flashcards are here to help you better understand middle school physical science.
MEMORY METER
This indicates how strong in your memory this concept is
0