Make Rain Indoors! Try this experiment and then tell us what you discover!   What You Need: An empty glass jar with a metal top Hot tap water Ice cubes Tip: Be patient. It takes about 15 minutes for water drops to form. Question: How can you make it rain indoors? 1) First, fill a glass jar with very hot tap water. 2) Then, flip the lid over and fill it with ice. Place the lid on top of the jar . 3) Now, wait and watch. In about 15 minutes you will see "rain" fall inside the jar . A Scientific Explanation: Some of the hot water turns into steam and collects on the lid. The ice cools the steam and turns it back into a liquid. When enough liquid collects on the lid it falls as a "rain" drop. This process is known as condensation . EXTRA! EXTRA! Look for other examples of condensation such as water drops forming on the side of a cold soft drink can. Use what you've learned about condensation to explain your observations.   It is fascinating to learn how rain is created! - Mike Z. My discovery was great! I had this big huge jar and I put very very very very very hot water in the jar and put tons of ice on top of the cap as instructed and it poured out rain like crazy and the best thing yet is that it only took 10 minutes. - Krystal S. I found out you was right about it. It looked like it could rain. At first I thought it was impossible. But congrats, I like it and it’s true! - Sissy M. Wow That's Cool! - Miguel A. I think it is cool! -Lily It was cool when it formed a raindrop that was shaped liked a balloon. - Kayla M. That the experiment is really cool!!! And really fun. Thanks a lot!!!! - Breanna N. My discovery is that when clouds are really heavy they form in to one huge rain cloud and begins to rain. The same with the experiment, it adds up heat in to the lid and it gets hot and begins to make (rain)drops. - Denise O. it was very exiting, it was the best thing I have ever did in my life. thank you so much. - Sierra G. It was pretty and it made a rainbow! - Morgan G. I discovered that the inside of the jar gets very hot and it causes some of the water to evaporate which causes the condensation to drift to the top of the jar and create rain inside the house. - Tia B. What happened was that the condensation with warm air made moisture. - Nichole R.