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The Unique Bucket Tower Challenge

Bucket Tower. It even sounds silly. I never dreamed when we invented this challenge that it would become so popular. Except for Building Boats and Roller Coasters, this is the challenge that I get the most questions about.  

I promise this is what happened:  I had a class prepared for a tower building challenge. We were going to build satellite dish towers. But, sadly, I forgot to buy the clear cups I needed, so I opened the cabinets to see what else I had. I had a line of previously used little white cups just waiting for their chance to shine. The Bucket Tower Challenge was born.

STEM Challenges: This amazing challenge uses one basic material- Straws! Add a few more items and see if your students can build a suspended bucket that will hold weight!

In this post, for your convenience, you may find Amazon Affiliate links to resources. This means that Amazon will pass on small percentages to me with your purchase of items. This will not create extra costs for you at all! It will help me keep this blog running!

Seriously, is that how you really plan?

No, of course not. I put a lot of thought into the Satellite Dish Tower but just didn’t have the right materials. We did complete it later, but on this particular day, I grabbed the little white plastic cups and some hole punchers and invented the Bucket Tower Challenge on the spot. (Little known secret: teachers do this all the time.)

When you have a lot of straws in the STEM Lab you build things!

Okay, there is more of a back story to this one!

Last spring I asked if teachers could add some items to our school supply lists. I figured if some of the kids brought things I use often in the lab it would be very helpful. Now, I know I asked for pencils, but apparently, I also asked for straws.

Yep, that’s a lot of straws.   So, I started trying to invent things we could build using straws. And I thought about towers first- because we love to build towers. That’s how the idea for the satellite dish tower was invented.

But, we know how that turned out- so how did we invent the bucket tower?

The first class that came in the lab helped me. I gave them the background of the story – which was basically a reason for needing a tower with a bucket. The test class jumped right into this challenge!

Testing our Bucket Towers with weight helps find areas that need to be improved.

The Test Class

I use STEM challenges multiple times and after the second class, I usually have all the kinks worked out. My students LOVE it when I tell them they are the Test Class. They know this means that I have NO IDEA what is going to happen and we kind of make it up as we go…. I am serious.  The test class will start to work on something and we have to stop frequently and talk about what is happening. We often add rules right in the middle of the task when we run into problems.

We need to talk about all that tape! The famous Bucket Tower Challenge!

Here’s the first kink in the Bucket Towers.

TAPE! I knew better, but just didn’t think it through and gave each group a roll of tape. Take a look at the photo to the left.

Is this tower made of straws or tape?  

Needless to say, we added a rule to the next class and limited the amount of tape being used.

The bucket tower story is on this blog post!

The Bucket

Mind you, that is a spectacular structure and it held 200+ pennies when we tested it. But is it a bucket if it’s attached to the structure? We had quite a discussion about this and decided the rule needed to be added that the bucket could not be restrained. (You can’t tell in the photo but the straw through the bucket is attached to the structure’s frame. It will turn over, but it does not swing freely.)

Students in STEM class become experts on using string to help towers stand up!

The String

Was the string provided only to use with the bucket?

What if you don’t need all the string? Can it be used to help tie down the structure?  Notice in the photo that the team used the string very cleverly to help hold up the tower. This is real-life, too! So, the string could be used in whatever way it was needed.

The famous and unique bucket tower STEM challenge is featured on this post!


We LOVED Bucket Towers!  This is a simple challenge that we repeat every year!   Here’s why:   

  • It’s super easy to put together!
  • Materials are inexpensive and things you probably already have.
  • Kids love it because it’s just enough outside the box to allow a lot of creativity!
  • Every tower looks different and the kids love sharing their finished products.

If you have not tried Bucket Towers yet- what are you waiting for? Click on any of the images to see the resource in my store!

You might enjoy these posts, too:

The unique bucket Tower STEM Challenge- a few materials with a building requirement that involves a bucket!

Materials for Bucket Towers!


  1. I do have this project available! Here's a link:

  2. Everything about this challenge is in the product package! Here's a link:

  3. Hi Erica! I have tried this with fourth and fifth graders. Thanks for stopping by!

  4. We are in the middle of creating our bucket towers. I am as excited and the students to see who comes up with what. Thank you for posting

  5. This makes me so happy! I am excited for your kids as they try this fun challenge! Thank you for letting me know!

  6. Such an excellent and simple idea! I just went and downloaded the files from Teachers Pay Teachers – very well put together!

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