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Can You Build a Working Drawbridge? Castle STEAM Challenge

Can you build a working drawbridge in this castle STEAM challenge?

The Medieval period was a time of considerable mechanical innovation. Some Medieval machines include: steam powered clocks, heavy ploughs, catapults, printing presses, blast furnaces, drawbridges, spinning wheels, and tidal mills.

A drawbridge is a hinged bridge at a castle’s gates that provides entry over a defensive moat while also keeping intruders out. Drawbridges are raised or lowered by using ropes or chains. 

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This activity is part of our Magic Tree House book activities series. In the story, The Knight at Dawn, Jack and Annie find a castle surrounded by a moat with a drawbridge attached.

They also find a windmill in operation. This castle STEAM challenge pairs art and engineering to challenge kids to make a working drawbridge for a castle! 

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Make a cereal box drawbridge with these supplies!

How to Build a Drawbridge – Castle STEAM Challenge

We used an empty fruit snack box for this activity. To start, we turned the box inside out by finding the glued seam along one of the sides.

After the solid brown was facing outward, we cut the box to our preferred castle shape. We removed half of the back and reattached the removed piece to the other side of our castle in order to balance our structure. 

We secured the base of our structure using staples in order to make it stand on its own. You’ll have to play with the flaps of your box to figure out the best way to staple your base.

Design the top of your castle and cut pieces off as you see fit.

Frozen Elsa Castle Magic Tree House STEAM Knight Castle Drawbridge Step 1

We applied our knowledge of resist art to decorate and paint the outside of our castle. We used oil pastels to draw our blocks of ice.

Then, we used our awesome watercolor brush pens to paint our entire castle with blue watercolors

Frozen Castle STEAM Drawbridge Knight Castle Magic Tree House Step 2

Would you believe that my 3-year-old painted the entire castle by herself!!?

Frozen Castle drawbridge STEAM Knight Magic Tree House Step 3

Our castle was inspired by Frozen because we love anything Elsa and all things STEAM!

Incorporating a favorite character into this activity is a great way to get girls (and boys!) who might not be very interested at first involved in this easy engineering activity! 

Frozen Castle STEAM drawbridge Knights Magic Tree House Step 4

After our castle was finished drying, I used a craft knife to carefully cut out the drawbridge doorway and poked two holes through the top of the doorway at each upper corner and then on each inside wall of the castle.

Make sure to only cut the sides and top of the doorway. Fold the doorway down to create your drawbridge gate. This step MUST be done by an adult!

Place a chopstick or pencil in the two side holes. Check out this picture for help figuring out where to make the holes and how to place your chopstick.

Add some tape to the outside ends of the chopstick in order to prevent it from slipping back into the hole. Repeat for the other side.

frozen castle knights drawbridge STEAM challenge step 8

Measure out your string, poke an end through a corner on the drawbridge gate, and tape the other end to your chopstick. Repeat for the other side.

We used duct tape to add weight to our drawbridge gate as well as cover up some of the bright fruit snack colors on the box!

The tape also worked well for holding the drawbridge in place while we played!

frozen castle knights steam challenge magic tree house step 7
Frozen castle steam drawbridge challenge magic tree house knights step 5

When you roll your stick forward, the drawbridge comes down.

Frozen Castle STEAM Drawbridge Knights Magic Tree House Step 5

When you roll your stick backward, the drawbridge goes up to prevent intruders! 

magic tree house knights drawbridge challenge medieval machinery STEAM

We were pretty excited to play with our Frozen castle drawbridge and sang “open up the gates” every time we rolled our drawbridge down.

We didn’t make a moat like there was in The Knight at Dawn, but all of my kiddos enjoyed practicing with the drawbridge and investigating how it worked with my young kiddos!

Our structure has withstood the terrible earthquake that our 1yr old brings when he storms the castle! 

frozen castle steam knights magic tree house drawbridge challenge
Frozen steam activities drawbridge steam challenge elsa castle

Tell the guards to open up the gates! 

Frozen steam activities drawbridge steam challenge open the gates

This is a great activity to pair with The Knight at Dawn as well as some other medieval books.

Check out our favorite books to pair with this castle STEAM challenge!

Knight at Dawn Magic Tree House STEAM Drawbridge Challenge

Our Favorite Castle & Knights Books

Magic tree house knight at dawn drawbridge steam challenge

Can You Build a Working Drawbridge?

Frozen Castle STEAM Drawbridge Knights Magic Tree House Step 5

Castle STEAM Challenge: Make a drawbridge from a cardboard box!

Active Time 1 hour
Total Time 1 hour

Materials

Tools

Instructions

  1. Turn your box inside out by finding the glued seam along one of the sides.
  2. Secure your structure by using staples to make it stand on its own.
  3. Design the top of your castle and cut off the pieces you desire.Frozen Elsa Castle Magic Tree House STEAM Knight Castle Drawbridge Step 1
  4. Use oil pastels to decorate the outside of your castle.Frozen Castle STEAM Drawbridge Knight Castle Magic Tree House Step 2
  5. Paint over the entire castle with watercolors.Frozen Castle drawbridge STEAM Knight Magic Tree House Step 3
  6. Let your castle dry.Frozen Castle STEAM drawbridge Knights Magic Tree House Step 4
  7. ADULTS ONLY: Use a craft knife to cut out three of the edges of your drawbridge. Do not cut the bottom. Fold the drawbridge down.
  8. Place a chopstick or pencil in the two side holes. Add some tape to the outside ends of the chopstick in order to prevent it from slipping back into the hole. frozen castle knights drawbridge STEAM challenge step 8
  9. Repeat for the other side.
  10. Measure your string, poke an end through a corner on the drawbridge gate and tie a knot. Then, tape the other end to your chopstick.frozen castle knights steam challenge magic tree house step 7
  11. Repeat for the other side.
  12. Optional. Use duct tape to add weight to your drawbridge gate.
  13. When you roll your stick forward, the drawbridge opens.Frozen castle steam drawbridge challenge magic tree house knights step 5
  14. When you roll your stick backward, the drawbridge closes.Frozen Castle STEAM Drawbridge Knights Magic Tree House Step 5

Notes

When you roll your stick forward, the drawbridge opens. When you roll it backwards, the drawbridge closes.

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Did you make this project?

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Meet Toni, the Maker Mom behind Our Family Code

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Hey there, I’m Toni! I’m a software engineer and Maker Mom that finds my joy in unleashing my children’s curiosity by exploring STEAM concepts with my fantastic five!

When I’m not chasing toddlers or raising tweens, you can find me tearing things up and putting them back together over here at Our Family Code.

I am the owner and content creator of multiple educational websites designed to increase access to STEAM & STEM education with a focus on teaching computer science and coding to kids of all ages!

You can also find out more about me by visiting ToniGardner.com!

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Cerys

Tuesday 24th of September 2019

This is great. I am going to be making this with my kids and I know they will love it.

Toni

Tuesday 24th of September 2019

It's amazing how something so simple can create so many open ended questions and learning opportunities! All of my kids 1-11 love playing with it and investigating how it works! My husband even said "I wish i had something like this when I was a kid!"

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