Item name: Air Compression Ignition Overview This demonstrator shows how rapid gas compression raises temperature and can ignite a small amount of tinder. It converts mechanical work into heat in a visible, repeatable experiment, making the physics principle easy to observe and understand. Key benefits Clear demonstration of adiabatic compression: watch temperature rise and ignition happen inside the transparent cylinder. Simple to assemble and operate: a few quick steps let students perform the experiment and see results immediately. Durable, compact design: metal and plastic construction with a clear plexiglass cylinder for good visibility. Ideal for teaching and exploration: supports junior school physics lessons and handson learning to build interest in thermodynamics and energy conversion. What makes it stand out Visible plexiglass cylinder for direct observation of the compression process. Fast, repeatable ignition demonstration with minimal setup. Compact size and light weight for classroom use or science club demonstrations. Contents and specifications Package includes: 1 set Air Compression Ignition Materials: Metal and plastic (transparent plexiglass cylinder) Product size: 27.6 x 6 x 12.5 cm Product weight: 200 grams Color: Random color selection Tinder: Not included Basic setup and operation 1. Unscrew the handle and remove the upper cover of the plexiglass cylinder. Insert the connecting rod into the upper cover, then screw the handle back on. 2. Place a small piece of clean absorbent cotton about the size of a small bean on the bottom of the cylinder. Other tinder materials with similar or lower autoignition temperature may also be used. No tinder is supplied. 3. Apply a small amount of petroleum jelly as lubrication between the piston and the cylinder to improve sealing and smooth motion. 4. Push the piston into the cylinder and tighten the upper cover. Stand the cylinder upright and press the piston handle quickly and firmly to compress the air. The rapid compression raises the temperature and will ignite the cotton. Usage notes Exhaust the cylinder before starting an experiment to remove trapped air as directed in the setup steps. Lubricate the piston lightly with petroleum jelly to reduce friction and improve sealing. Use under appropriate supervision and in a controlled setting suitable for open flame demonstrations. Typical applications Classroom physics demonstration for junior or middle school students to illustrate energy conversion and gas laws. Science club or handson workshop activity to practice experiment setup and observe thermodynamic effects. Teacher demonstrations during lessons on pressure, temperature, and state changes. This device provides a straightforward, handson way to demonstrate how mechanical compression can produce heat and ignition, packaged in a compact and easytouse format for educational settings.