Detailed production method of two-stage water rocket

1. Preparation of materials

2 to 6 2.25 L Coke bottles, scissors, single-sided blade, rubber stopper, ballpoint needle, valve core, stapler, double-sided glue, colored. decorative paper. Lightweight, airtight materials like tablecloths.

2. Specific methods

Production process:

Preparation of booster cap: Use a knife to cut off the thicker end of the rubber cap. the cut is 2.3 cm. Install the valve core, hose and nut through the small hole and force the rubber stopper into the bottle mouth so that the exposed part outside the bottle mouth does not protrude approximately 2mm; with a diameter of approximately 12mm in the middle of the beverage bottle cap, so that only the valve core is exposed when the bottle cap is tightened.

Preparing the side wings: Cut out four side wings with pieces of cardwe. In order to give the rocket better stability during flight, the side wings must have a higher hardness if the pieces of paper are not hard enough. , you can glue two or three pieces together to make it. After cutting the side wings, fold the "gluing claws" on both sides alternately and glue them symmetrically to the underside of the rocket with transparent adhesive tape.

Detailed information:

< p>The water rocket is a toy designed using mass ratio and air pressure. This is also one of the famous cases in physics education. It can cultivate students' interest in learning physics, and the physical principles contained in it are important for understanding mechanics. in physics the basis of.

Water rockets are also called pneumatic water jet rockets and water jet rockets.hydraulic propulsion. It uses discarded drinks bottles to make electrical cabins, rocket bodies, booms, fins and parachutes.

Baidu Encyclopedia – Water Rocket

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1. The first step is to cut the plastic water bottle as shown in the picture below.

2. In the second step, drill a hole in the bottle cap as shown in the image below.

3. Put cotton in the bottle as shown in the picture below.

4. Put on gauze, as shown in the picture below.

5. Add activated carbon, as shown in the image below.

6. Put on another layer of gauze, as shown in the picture below.

7. Pour in the river sand, as shown in the picture below.

8. Place the stones as shown in the picture below.

9. Place the deviceined on the shelf and secure it, as shown in the picture below.

10. Pour the waste water into the device as shown in the image below.

11. As shown in the picture below, clean water will flow out and the rural water filter device is ready.