DODO DINO| Chế tạo cây cầu vạn dặm| STEM - SETAM - Khoa học vui nhộn - Khoa học vui

Introduction

In this tutorial, we will explore how to create a bridge using simple materials and STEM principles, inspired by the DODO DINO video on building a "vạn dặm" bridge. This activity is not only fun but also educational, helping children understand basic engineering concepts and the science behind bridge construction.

Step 1: Gather Your Materials

Before starting the bridge-building process, collect the necessary materials. Here’s a list of what you’ll need:

• Sturdy base materials (like cardboard or wood)
• Straws or popsicle sticks
• Tape or glue
• Scissors
• Weights for testing your bridge (e.g., coins, small toys)
• A ruler for measuring

Step 2: Design Your Bridge

Planning is crucial for a successful bridge. Follow these steps:

1. Choose a Bridge Type:

   • Consider different types of bridges such as beam, arch, or suspension.
   • Each type has unique strengths and weaknesses.

2. Sketch Your Design:

   • Draw a simple diagram of your bridge, including dimensions.
   • Think about how it will span the gap and support weight.

3. Plan the Materials:

   • Decide how many straws or sticks you will use.
   • Ensure your design is feasible with the materials at hand.

Step 3: Build the Bridge

Now it's time to construct your bridge. Follow these steps:

1. Create the Base:

   • Cut the base material to your desired length, ensuring it can support the structure.
   • Secure it firmly to a flat surface.

2. Assemble the Main Structure:

   • Use straws or popsicle sticks to create the main beams of your bridge.
   • Connect them with tape or glue, ensuring they are straight and secure.

3. Add Supporting Structures:

   • Include diagonal braces for added stability.
   • Make sure the bridge can withstand pressure from above.

Step 4: Test Your Bridge

Once your bridge is built, it's time to test its strength. Here’s how:

1. Place Weights Gradually:

   • Start with light weights and gradually add more.
   • Observe how the bridge handles the weight.

2. Check for Weak Points:

   • Look for any bending or breaking points.
   • Make note of where improvements can be made.

3. Redesign If Necessary:

   • If your bridge fails, analyze why it happened.
   • Use this feedback to reinforce weak areas or redesign parts of your bridge.

Conclusion

Building a bridge is an engaging way to learn about engineering and physics. By gathering materials, designing, constructing, and testing your bridge, you gain valuable hands-on experience. Don’t hesitate to experiment with different designs and materials to see how they affect the strength and stability of your bridge. Happy building!