Bottle Rockets

Make a hole in the bottle cap, just big enough to insert the plastic tubing. Use a drill or a nail and a hammer.

In March of 1926, Dr. Robert Goddar successfully launch the first modern rocket propelled by liquid fuel (First liquid-fueled rocket). Before this time Rockets were launch using either gun powder of steam to propel their rockets, but what Dr. Robert Goddar was more than just launch a simple rocket, but open up new possibilities and a look at the future. Before this time rockets were used in wars by the Chinese as they were attached to arrows and/or spheres to strike their enemy (Rockets in Ancient Times). Over time Rockets have changed greatly, from essentially being a sphere and not being able to get off the ground to becoming fuel propelled machines that can take us billions of miles into space.

The bottle rocket is controlled entirely by forces and reactions. The bottle begins stable, held to the ground by the forces of gravity. All of the forces are balanced resulting in the bottle remaining motionless. The rocket will then build with pressure due to air being supplied by the air compressor. This will build up force within the rocket and create potential energy. When the rocket launches there is force pushing it up called thrust and two forces pushing down, gravity and air resistance.

At the beginning of our party we would launch these rockets that one of my friend’s grandpa would always make. Most of the time he tried making rockets as tall as he was. These rockets were white and had a red nose, it always reminded me of the real life big rockets that we would send into space with. He would make plenty of other smaller rockets with an assortment of different shapes, size, and color. The ones that would always go the furthest, I would always remember that.

To conduct this experiment, a candle was placed upright in a pan of water, was lit, and the flame was allowed to fully develop. Then a graduated cylinder was placed upside down to represent an airtight chamber, and the water rose. The point where it rose to was

When I first started building my bottle rocket, I had two water bottles. The one I used for my bottom, I had to cut the top of it so the top piece could fit in it. Then I had to get some duct tape, and rapped it around the side where it was cut. Then I cut out four triangles but only used three. I got a hot glue gun and put it onto the triangle and placed it on the bottom part of the bottle. Then I painted it with turquois paint.

Second trial was 9ml of baking soda in 3 rockets with 10ml of vinegar. The first one hit the counter so the length was shorter the launch was 140cm. Second one I pointed it straight and tilted up that got me 530cm. Third the rocket went backwards and the lid flew straight. The average was 385.3 repeating.

Bottles being made of glass would have been dangerous around children and highly breakable. Whereas if the bottles are made of plastic they are less likely to break and as a result are safer.

Bernardi, Cory, and Preston Rufner. "The First Tank." The Invention Of the Tank. N.p., n.d. Web. 01 May

Newton’s first law states that “an object at rest will stay at rest and an object in motion stays in motion unless acted upon by an unbalanced force.” This is also known as the “Law of Inertia.” This applies mostly to things in our everyday lives, such as seatbelts and soccer balls, but can also explain more complex things. How does a bottle rocket relate to this? At first, the question may be pondered over for hours on end, but the answer is really quite simple.

In trial C, I used 7mL of baking soda. On the first launch, the lid traveled 572cm. The cap took about four seconds to come off, I heard a big pop, there was a little leak, not much sizzle and the lid hit the counter. The second try went 396cm. There was a big pop, no leak or sizzle, it took about three seconds to go off and hit the edge of the table. My third and final launch went 385cm. The cap hit the table, there was not a leak or sizzle, I heard a smaller pop and the lid took about four seconds to pop off. The average distance for this trial was 451cm.

“Fire!” I yelled as I pulled back the arm of the catapult, and quickly releasing it to have the marshmallow soar through the air. In this paragraph I will be writing about my catapult, and how far it fired, and also the accuracy, and finally how I built it. First, I had to construct my catapult we e were each given 16 rubber bands and 11 popsicle sticks. It was very challenging to tie the rubber bands to the popsicle sticks because there was a special way to tie the rubber bands, but I finally triumphed, I got all my rubber bands tied on. I figured out that if you tied the rubber bands to tight your catapult would start leaning and that’s what happened to mine, but if you tied them to lose your catapult would collapse. Second, I had to test

This memo evaluates the quality of instructions to build an Alcohol Bottle Rocket, using terms, ideas, and concepts from our English book.

In the first century, some of the Chinese had made a simple contraption of gunpowder made of saltpeter, sulfur, and charcoal dust. This invention was then used to make explosions for religious festivals. The mixture was poured into bamboo tubes. Then, the tubes were thrown into fires. Some of the tubes were pushed by the gases and sparks made from the gunpowder that was burning. After realizing this invention, the Chinese began examining this idea. They attached arrows to the bamboo tubes and launched them with arrows. The Chinese detected that gunpowder tubes could send themselves up by the power made from the escaping gas. This is when the first true rocket was made in approximately

and a 0,5 l PET bottles are planned to make the product more practicable for sportive and “on