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A Hands-On Activity Teaching About Raindrop Formation
Discrepant Events Research
LEGO Timeline
LEGO Story
A LEGO Lesson
Evaporation Activity
Condensation Activity
Raindrop Activity
Mass/Weight Misconception
Dissolving Misconception
Living Things Misconception
Air/Oxygen Misconception
Planetary Orbit Misconception
Surface Tension Demonstration
Air Pressure Paradox
Iodine/Starch Paradox
Air Pressure Paradox
Daytime Star Paradox
Mouse Simile
Rabbit Simile
Giraffe Simile
Bear Simile
Air Speed/Flight Demonstration
Cohesion Demonstration
Optical Illusion Demonstration
Lightning Demonstration
Twinkling Star Demonstration
Density Paradox

Science Area:  Earth Science
Concept:  Raindrop Shape Formation



The water cycle includes the processes of evaporation, condensation and precipitation



11.A.1a:  Describe an observed event.

12.C.2b   Describe an explain the properties of solids, liquids and gases.

12.E.2a.   Identify and explain natural cycles of the Earth’s land, water and atmospheric systems.


Safety Considerations: 

Use caution when dealing with water. 


Science Process Skills:

Observing and Communication



Cups of water

Eye Droppers

Wax paper squares

Paper Towels



Divide class into groups of 2 or 3. 

Distribute water, eyedroppers and wax paper.

Have students drop little drops of water onto the wax paper.  Have them drop some near other drops and others farther apart. 



Explanation:  Water acts the way it does because the water molecules have a very strong attraction to each other. We call this attraction - cohesion.  The strong cohesion of water molecules means that they would rather be with each other than apart. This results in a very strong pull on the water molecules that are in the air. The accumulation and attraction of the water in the atmosphere causes raindrops to form.  These water droplets collect and then form clouds. As clouds move, the water droplets bump into each other and form larger droplets of water.  When the air becomes too heavy with water droplets, the clouds get heavy and gravity pushes the water back to earth and the in the form of precipitation.  Precipitation can be in the form of:  Rain, Hail, Freezing Rain, Sleet or Snow.