Making Rain in a Jar Science

Over the weekend Austin asked a question about space after looking through a book on our bookshelf: First Space Encyclopedia. We hit YouTube to watch a few great videos. But in true curiosity form of a child, one question lead to another and the next thing I knew we were making rain in a jar.

How to make rain in a jar

Making Rain in a Jar

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This is really simple to do. Kids get a kick out of it. It’s something that you can do any day without a lot of prep before hand as long as you have ice cubes in the freezer. I rarely have ice cubes in the freezer so it does take some prep for us.

Unlike making a cloud in a jar, you don’t need anything special. Just water, a plate and a jar.

How to make it Rain in A Jar:

  • boiling water
  • ice cubes
  • a plate
  • a jar

What you need to do:

You need a jar. Some hot (boiling works best) water, a plate that will fit snug on top of your jar, and some ice cubes.

Put your ice cubes on the plate. About 4 or so. We used large whiskey ice cubes.

Fill your jar about a third of the way up with hot water.

Quickly put your plate on top of the jar.

rain in a jar

What’s happening:

The cold plate causes the moisture in the warm air, which is inside the jar to condense and form water droplets. This is the same thing that happens in the atmosphere. Warm, moist air rises and meets colder air high in the atmosphere. The water vapor condenses and forms precipitation that falls to the ground.

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Making Rain in a Jar

Rain in A Jar

Yield: 1
Prep Time: 2 minutes
Active Time: 10 minutes
Total Time: 12 minutes
Difficulty: Easy

Recreate rain in a rain, in your kitchen for a fun weather relate science experiment.

Materials

  • hot water
  • ice cubes

Tools

  • a jar
  • a plate to fit over your jar

Instructions

  1. Fill your plate with ice cubes.
  2. Fill your jar about a third of the way up with hot water.
  3. Quickly put your plate on top of the jar.
  4. Watch what happens.

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Making Clouds in a Jar

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