Dew Point, Humidity and Weather

• Examine why, some mornings, there is dew on surfaces and the ground. Take a thermometer and simply register the air temperature of the classroom before visiting weather.com and finding the relative humidity for the chosen area on that day. Fill a glass1/3 of the way approximately 30 degrees Celsius water and place a thermometer in the water. Take a pipette and add ice water to the glass until the temperature drops by a whole degree. Continue this experiment by waiting for two minutes with the water at a set temperature before adding more water until observe condensation on the exterior of the glass. This is the dew point.
  
  

Watching Clouds

• One long-term project that you can prepare for the science fair gets investigates the different types of cloud and whether you can predict the weather based on cloud patterns. Carry out observations at the start and end of each school day from the same point on school grounds. Compile a chart of the 10 different types of cloud and record instances of these types of cloud in a journal. You should also note the prevailing weather conditions (rain, wind, sunny). Carry out your research over the course of a month and assess your results to see if certain types of clouds indicate certain weather trends.
  
  

Too Cold to Snow?

• Demonstrate the possibility that it can be too cold to snow. Select a part of the country that receives a lot of snow in the and write up a chart with four headings: date; temperature high; temperature low; and precipitation. Pick a typical winter month, such as January, and go through newspaper archives to fill your chart for each day of the month. Using chart data, draft a graph where the Y-axis is temperature and the X-axis is the date. Present your conclusions about the necessary temperature for snow.
  
  

Angle of Heat

• Assess the affect of the light radiation angle on an object's temperature. Set up three separate stations. Position three identical desk lamps at the at same distance and angle from the table upon which they stand. Wrap three identical thermometers in three same-size pieces of black construction paper. Lay one thermometer flat on the table beneath the lamp and the other two at 45 and 90 degree angles beneath the lamp. An adjustable book stand is a good way of adjusting thermometer angle, but you should use a protractor to make sure of accuracy. Switch on the lamp and record the temperature of each thermometer every two minutes for an hour. Present graphs highlighting the impact of thermometer angle on temperature.