Objective

By the end of this lesson, you will be able to understand the basic principles of rotary engine design and mechanics.

Materials and Prep

• Pen and paper
• Internet access
• Optional: Rotary engine model or diagram (can be found online)

Activities

1. Research and Explore:

   Use the internet to research and explore the concept of rotary engines. Look for information on how they work, their advantages and disadvantages, and any famous rotary engines in history.

2. Create a Visual Representation:

   Using the information you gathered, create a visual representation of a rotary engine. You can draw a diagram or build a simple model using everyday objects.

3. Explain and Present:

   Present your visual representation to a family member or friend. Explain how rotary engines work and highlight their unique features. Answer any questions they may have.

Seventh Grade Talking Points

• "A rotary engine is a type of internal combustion engine that converts pressure into rotating motion."
• "Unlike traditional piston engines, rotary engines have a triangular rotor that rotates inside an oval-shaped housing."
• "The rotor has three faces, called apex seals, which create different combustion chambers as it rotates."
• "Rotary engines are known for their high power-to-weight ratio and smooth operation."
• "Mazda is a famous car manufacturer that has used rotary engines in some of their vehicles, such as the RX-7 and RX-8."
• "While rotary engines have advantages like compact size and high RPM capability, they also have challenges such as higher fuel consumption and emissions."