# How to Make simple wind vane working model for a science exhibition – simple project

Creating a simple wind vane working model for a science exhibition using a pencil with a rubber, straw pipe, color paper, and a paper cup is a great idea.

Here’s a step-by-step guide to making it:

### Materials Needed:

1. Pencil with a rubber (eraser)
2. Straw pipe (or a drinking straw)
3. Color paper
4. Paper cup
6. Scissors
7. Marker or pen
8. Ruler

### Step by Step Video Instructions on Wind Vane:

#### 1. Prepare the Base:

• Start by placing the paper cup upside down on a flat surface. This will serve as the base of your wind vane.

#### 2. Create the Wind Direction Indicator:

• Take the pencil with the rubber attached and insert it vertically into the center of the paper cup. This will be the axis around which the wind vane rotates.
• Ensure that the rubber end of the pencil is facing upwards and protruding above the top of the cup.

#### 3. Construct the Arrow:

• Cut a small arrow shape out of color paper. This will be your wind direction indicator.
• Glue one end of the straw pipe to the back of the arrow shape.
• Insert the other end of the straw pipe onto the eraser end of the pencil, allowing the arrow to rotate freely.

#### 4. Label the Directions:

• Use a marker or pen to label each side of the paper cup with the corresponding wind direction (e.g., North, South, East, West).
• You can also add additional labels for intermediate directions (e.g., Northeast, Southwest).

#### 5. Testing:

• Place the wind vane outdoors in an open area where it can catch the wind.
• Observe how the arrow aligns with the wind direction as the wind blows.
• You can also use a compass to verify the accuracy of the wind vane’s readings.

### Educational Value:

• Explain how a wind vane works to determine wind direction based on the orientation of the arrow relative to the compass directions.
• Discuss the importance of wind direction in weather forecasting, navigation, and other applications.