Build A LEGO Dam - Little Bins and Bricks

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Kick-off your LEGO building ideas with an awesome LEGO water activity building dams and exploring the flow of water! Have you ever been to a children’s museum or science museum where they have base plates, bricks and running water available for kids to adjust the flow of water or create dams? This is our at-home version of an activity we love at the museums. Of course, you can take this awesome LEGO building idea outside and set up the hose too!

LEGO WATER ACTIVITY: EXPLORING THE FLOW OF WATER

WATER SCIENCE FOR KIDS

Try this fun LEGO water activity! Can you use your LEGO bricks on an inclined surface to control the flow of water? Building dams is a terrific hands-on STEM activity for kids using a favorite building material, LEGO! A LEGO volcano is also another awesome LEGO building challenge to try!

Check out the LEGO video below and also bonus links at the bottom of the page for more great LEGO building challenges.

Looking for easy to print activities, and inexpensive problem-based LEGO building ideas?

We have you covered…

Click below to get your quick and easy brick building challenges!

LEGO WATER EXPERIMENT

YOU WILL NEED:

LEGO base Plate
LEGO 2×2 and 2×4 Bricks
LEGO Slopes {assorted sizes}
LEGO Hinged Pieces {2}
Tray or Shallow Bin {to catch water}
Bottle of Water {to test your design}

HOW TO BUILD A DAM

Check out how we set up our inclined surface below. You may need to adjust your design depending on the variety of bricks and pieces you have available.

Once you have your inclined plane set up and on a tray or in a bin to catch the overflow, it’s time to design your dam! This a great activity that multiple ages can work on together as well as different abilities.

You can make your LEGO water dam as complex or simple as you like and tweak your design for desired results over and over again. You can also encourage older kids to sketch a design first, write predictions, record observations, and analyze the results to draw a conclusion about the effectiveness of their design.