# Where Did My Puddle Go?

• Time Length

1-2 hours

• Mess Level

A Little Messy

• Cost

Materials or Fees

• Difficulty

easy

### Question and Wonder:

• Where do puddles come from?
• Why do they disappear?
• Why doesn’t a river disappear like a puddle? A lake? The ocean?
• I wonder where the water goes….

### Imagine and Design:

• Does a puddle last longer when it is cold or hot? Why?
• Where does the water go?
• Why can’t we see it go?
• Can you predict how fast a puddle will dry up? How?
• How much does it have to rain to leave a puddle?
• What can you use to make your own puddles?
• What can you use to measure a puddle?

On a rainy day, watch how puddles form. Notice where they form. When the rain stops, make note of the time.  Place a small item in the puddle and note the depth of the water. Mark the water level with a pencil or piece of chalk. Use chalk to outline the puddle. Check at regular intervals to see if the depth, shape, and size changes.

### Test and Discuss:

• What did you notice about where the puddles formed? What did the ground look like?
• Were there more puddles on the sidewalk or the grass? Why?
• How long did the puddle last? Were you able to predict it? How?

Find a place in your yard that will not be disturbed. Make your own puddle with a hose or bucket of water. Put a cup of water outside near your puddle. Dunk items in water and set them outside near the cup of water. Wet a washcloth or small towel and set it next to the other items. Observe. Try this on a sunny day and a cloudy day, in the sun and in the shade. Observe.

• What dried the fastest?
• How long did it take for the water in the cup to be gone? What would happen if you put ice in the water?
• What observations did you make about water and air?
• Can you figure out where the water went?
• How did the sun effect how fast it dried? What if it was cloudy? In the shade?

Did You Know:

When you take a drink of water, you are drinking the same water the dinosaurs drank! Earth has been recycling water since the beginning – the same water over and over and over…

The four stages of the water cycle are Evaporation, Condensation, Precipitation, and Collection.

Evaporation: water heated by the sun becomes a vapor and is absorbed into the air

Condensation: water vapor rises and cools, becoming liquid again and forming clouds

Precipitation: when the water drops become too heavy to stay in the clouds, they fall to the earth as rain or snow or sleet.

Collection: the water that falls from the sky collects in low lying areas forming puddles, lakes, rivers and even oceans.