Grade 6

Principles Of Meteorology

I.  Air Pressure and Velocity(p.29-Weather Watch)

As velocity increases in a restricted area, air pressure decreases.

Air molecules move from an area of greater concentration to lesser concentration.

Procedure;

1.

2.

3.

Result/Data:

Conclusion:

What caused these results:

II.  Does Air Have Weight?

Briefly explain how you could prove that air has weight.

III,  Does Air Pressure Have Strength/Can it hold up water?(Exp.4 – Science Shelf Act)

Hypothesis:

Results:

Conclusion:

  IV.   As air rises does the surface pressure increase or decrease?

Hypothesis:

Conclusion:

What does the piling of books represent?

What does the removing of books represent

V,  Does hot air rise?(Science Shelf Act. – Exp.4

Hypothesis:

Conclusion:

V.  A barometer shows changes in air pressure

Changes in air pressure forecast changes in weather.

High air pressure indicates

Low air pressure indicates

What happens to straw as the air pressure increases/explain?

What happens to the straw as the air pressure decreases/explain?

Test Your Knowledge of Air Pressure- Internet Search

Name:_________________________Class:______

Go to grade 6 – helpful links- air pressure

Scroll down to the “lightning image” .

1.       What is air pressure?

2.      What does differences in air pressure cause? Please list 5.  

3.      How are these differences displayed on a map?

4.      What is used to measure air pressure?  What units are used to measure air pressure?

5.      What happens to air pressure high up in the mountains? Why?

      6,   What happens to air pressure at sea level?why?

6.      If air pressure pushes down on us all the time, why haven’t we’ve been squashed?

7.      What kind of weather should you expect with low air pressure? High air pressure?