The water cycle is important because it is how water gets to all the plants, animals and even us!! Learn about the water cycle with this easy water cycle in a bag experiment. Find out what the role of the sun is in the water cycle and what evaporation and condensation are. We have lots of do-able and fun weather activities for kids!

WATER CYCLE IN A BAG EXPERIMENT

HOW DOES THE WATER CYCLE WORK?

The water cycle works when the sun heats up a body of water and some of the water evaporates into the air. This might be water from lakes, streams, oceans, rivers, run off etc. The liquid water goes up into the air in the form of steam or vapor (water vapor). This is a great example of changes in state of matter!

When this vapor hits cooler air it changes back to its liquid form and creates clouds. This part of the water cycle is called condensation.

When so much of the water vapor has condensed and the clouds are heavy, the liquid falls back down to the earth in the form of precipitation. Precipitation can be in the form of rain, hail, sleet or snow.

Now the water cycle starts over. It is continually in motion!

Create your own water cycle below with our free printable water cycle diagram. Find out what happens to the water you add to your bag. Let’s get started!

CLICK HERE TO GET YOUR FREE WATER CYCLE IN A BAG PROJECT!

WATER CYCLE IN A BAG

SUPPLIES:

  • Water cycle template
  • Zip top bag
  • Water
  • Blue food Coloring
  • Markers
  • Tape

INSTRUCTIONS

STEP 1: Print out and color the water cycle worksheet.

STEP 2: Cut the water cycle diagram out and tape it to the back of a zip top plastic bag.

STEP 3: Mix 1/4 cup of water with 2 drops of blue food coloring and pour into the bag and seal.

STEP 3: Tape the bag to a sunny window and wait.

STEP 4: Check your bag in the morning, mid day, and again at night and record what you see. Did you notice any changes?

MORE FUN WEATHER ACTIVITIES

WATER CYCLE IN A BAG FOR KIDS

Click on the image below or on the link for more fun weather activities for kids.

weather activities for preschool