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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?.

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Presentation Transcript
who is cpo science
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?
how is cpo science different
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?
what subject areas
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

What Subject Areas?
meter view
Meter View

Press 101.53 (KPA)

what is a kpa or kilopascal
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
  • What does your pressure sensor read for standard atmospheric pressure?
make a prediction
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?
create this graph
Create this graph!

Pressure (kPa)

Time (s)

design your own experiment
Design your own experiment
  • 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
Collect Data
  • Find the pressure at these volumes
  • 10, 12, 16, 18
  • Graph pressure vs. volume by hand
  • What is the constant value?
predict
Predict
  • Use your data to predict the pressure at 14 mL.
  • Try it and see how close your prediction was.
investigate charles s law
Investigate Charles’s Law

Go to

www.cposcience.com

For Educators

Workshop PowerPoint Presentations

Charles’ Law

slide21
How much can you change the air pressure in an empty plastic bottle by squeezing the bottle with one hand?
slide22
Explain, using Boyle’s law, what happens to the balloon inside the bottle when you pull down on the flexible bottom of the bottle.
slide24

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?

slide25
Use your pressure sensor and DataCollector to collect data on how the bottle pressure changes. Compare the results to your prediction.