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# Gas Laws: Hands-on Discovery PowerPoint PPT Presentation

Gas Laws: Hands-on Discovery. Welcome!. Developer and publisher of inquiry-based science curriculum and hands-on materials How many have heard of CPO Science? Sample materials at your table – PLEASE LEAVE FOR OTHER WORKSHOPS – WE CAN MAIL SAMPLES – Thanks very much!. Who is CPO Science?.

Gas Laws: Hands-on Discovery

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## Gas Laws:Hands-on Discovery

Welcome!

Developer and publisher of inquiry-based science curriculum and hands-on materials

How many have heard of CPO Science?

Sample materials at your table – PLEASE LEAVE FOR OTHER WORKSHOPS – WE CAN MAIL SAMPLES – Thanks very much!

### Who is CPO Science?

We design and manufacture high quality science equipment and INCLUDE IT with purchase of textbook sets

We support guided inquiry through extensive teacher support material and reader-friendly texts

We offer strong science content that is a blend of conceptual and quantitative approaches.

### How is CPO Science Different?

High School: Physical Science, Earth/Space Science, Physics First, CP Physics

Middle School: Earth, Life, Physical

Visit the booth

Request samples with raffle forms at end of workshop

### Meter View

Press 101.53 (KPA)

### Check out table and graph views by clicking on these tabs

Press 101.53 (KPA)

### What is a kPa, or kilopascal?

• A pascal (Pa) = 1 N/m2

• 1 kPa = 1000 Pa

• Standard atmospheric pressure = 101,325 Pa

• Or 101.325 kPa

### Make a prediction

• Suppose you connect a syringe to the pressure sensor.

• What would you have to do with the syringe to make the pressure increase? How would you make the pressure decrease?

Pressure (kPa)

Time (s)

### Create this graph!

Pressure (kPa)

Time (s)

• Boyle’s law states that there is a mathematical relationship between pressure and volume that always equals a constant value.

• The relationship is either:

### Collect Data

• Find the pressure at these volumes

• 10, 12, 16, 18

• Graph pressure vs. volume by hand

• What is the constant value?

### Predict

• Use your data to predict the pressure at 14 mL.

• Try it and see how close your prediction was.

### Investigate Charles’s Law

Go to

www.cposcience.com

For Educators

Workshop PowerPoint Presentations

Charles’ Law

### What does this model have to do with lungs and breathing?

Predict: Does the pressure in the bottle increase or decrease when you pull down on the flexible bottom? What % change in pressure do you expect?