Science Fair Project:

Foggy Fun

3.9 based on 10 ratings

Research Questions:

  • How does fog form?
  • How does wind affect fog?
  • How does light work in fog?

Fog is a cloud that forms just above the ground. There are two types of fog: advection and radiation. Advection fog occurs on the Pacific coast when warm, moist air blows over cold water, forming a low-hanging cloud that gets blown inland. The heavy, wet cloud provides water for coastal plants. Radiation or ground fog is common everywhere, especially in autumn. A thin layer of warm, moist air forms near the ground, and cooler, dry air lays atop it. As the temperature drops, condensation occurs. Clear nights with a slight breeze offer the optimum conditions for radiation fog.

Materials:

  • At least two bottles with narrow necks to hold ice cubes
  • Hot and cool water
  • A ruler
  • Additional supplies: food coloring, a fan, etc

Experimental Procedure

  1. Fill one bottle with very hot water.
  2. Fill the other bottle with an inch of cool water.
  3. After several minutes, empty the hot water and replace with one inch of hot water.
  4. Place an ice cube in the neck of each bottle.
  5. Record what happens in each bottle.

Variations include:

  • Add food coloring to the inch of hot water and see if the fog colors.
  • Blow a fan over the fog, increasing the speed to judge the affect of a slight breeze versus a brisk wind.
  • Shine several flashlights through the fog to see what happens when light hits the wet, heavy cloud.

A simple logbook records the effects of creating fog and any conditions applied to it:

Initial Creation of Fog

30 sec. after inserting ice cube, wisps of smoke form just above the water’s surface. It grows until 2:30 when the cloud settles.

Second Test

40 sec. after the ice cube was put in the neck of the bottle, a small cloud formed above the water and grew until 2:45.

Fan on Low Setting

Terms/Concepts: Advection fog; Radiation fog

References:

Author: Jane Healey
Disclaimer and Safety Precautions

Education.com provides the Science Fair Project Ideas for informational purposes only. Education.com does not make any guarantee or representation regarding the Science Fair Project Ideas and is not responsible or liable for any loss or damage, directly or indirectly, caused by your use of such information. By accessing the Science Fair Project Ideas, you waive and renounce any claims against Education.com that arise thereof. In addition, your access to Education.com's website and Science Fair Project Ideas is covered by Education.com's Privacy Policy and site Terms of Use, which include limitations on Education.com's liability.

Warning is hereby given that not all Project Ideas are appropriate for all individuals or in all circumstances. Implementation of any Science Project Idea should be undertaken only in appropriate settings and with appropriate parental or other supervision. Reading and following the safety precautions of all materials used in a project is the sole responsibility of each individual. For further information, consult your state's handbook of Science Safety.

How likely are you to recommend Education.com to your friends and colleagues?

Not at all likely
Extremely likely