Clouds in a Jar: Exciting WEather science Experiment for 1st Grade Kids

We are loving our first grade Weather Unit so far!  This week we’ve had a visit from our local meteorologist, shadow experiments, and lots of water cycle fun! Then, Friday, we ended the week with a weather science experiment: Clouds in a Jar.

Clouds in a jar blog image

This one was on taps last year, but my baby decided to get Croup….*major frowny face* and I just never got a chance to add it back into the plans!  But on the plus side, I didn’t even have to make copies of the lab handout this year because I had saved it from last year!  I LOVE it when that happens!!

Let’s back up for a sec…. earlier in the week learned about the water cycle and charted our learning about clouds (condensation) and rain and snow (precipitation).

Clouds, snow and rain weather anchor charts

One thing I love about our first grade weather unit is that instead of one or two bigger projects for the unit, we have at least one project or experiment planned each week.  The kids are *SO* engaged during these science-based units.

Clouds in a Jar Materials

Here are the materials needed for the clouds in a jar weather science experiment:

materials for clouds in a jar science experiment

Clouds in a Jar Steps

First, I told them what we would do and they predicted how many drops it would take before the cloud would rain.  And despite my referring to what we learned earlier in the week about it taking millions of drops of rain before a cloud gets heavy enough to rain, I still had predictions of 14 drops to rain, 6 drops to rain, and…2 drops….  Gotta love it!  

After our predictions, I had them record their predictions on their paper and then they worked as a group to get their materials.  I had died the rainwater cups beforehand, but they were in charge of filling the other cup 2/3 full, getting a dropper, and carrying their rainwater cup to their table.

Yes, I did the shaving cream myself once they had their materials ready.  Because, yes, I hate messes! Easiest decision of the day! LOL!!

One of my precious teammates let me use her leftover shaving cream from last year to save me a trip to the store…and this is how my first cloud turned out…

bad shaving cream! :)

Not exactly Hollywood worthy, huh??

It didn’t feel like it was terribly empty, so I just thought maybe it was lame-o because it was a year old.  But when I finally decided to use the second, unopened can, BAM!  A puffy cloud!  Just the puffy cloud alone got some pretty amazing “Oooohs” and “Ahhhhhs” from my firsties. Isn’t she just picture perfect?!?

A beautiful puffy shaving cream cloud

After all the clouds were formed sprayed on, they started dropping rain drop by drop.  They used tally marks to record how many drops of rain they had in their results box of the lab sheet.

making it rain

….and at least 38 drops later…

…we had rain!

Rain!

This is honestly one of the most engaging weather science experiments I’ve done in a long time.  They were absolutely glued to their clouds in a jar and very particular in making sure everyone had the same size drops.  And the stretching of the heads to see underneath the clouds was hilarious!

Once everyone had rain, they drew, colored, and labeled their observations and then we recorded our learning together.

weather science experiment handout

This clouds in a jar weather science experiment along with several other weather labs are included in my first grade Weather Unit…

First grade weather lesson plans