Math Monday: March 8, 2010 The following graph illustrated 2009 average monthly temperatures. The city is: a) Atlanta, GA b) Honolulu, HI c) Chicago, IL d) San Diego, CA

Earth’s atmosphere is composed of many gases. Name the % of each of the following gases: OXYGEN NITROGEN OTHER (argon, carbon dioxide, water vapor, etc.)

SOURCE: Science Museum; Various weather instrument catalogues

Fineman nephoscope, This was a portable instrument that could be used to measure the speed of clouds, giving an insight into the state of the upper atmosphere. The pointer was lined up with the cloud so that the reflection of the cloud could be seen in the black glass surface.

We now use the laser ceilometer. It can take pictures, read direction/speed/altitude.

Hygrometer It determines the amount of humidity in the air.

Modern day hygrometer (or psychometer). Information is sent via satellite. humidity

Weather Vane humidity

Rain Gauge

Anemometer

Barometer (or the one in our class)

Thermometer