2. Methods and Procedures

Materials
-Scissors (2)
-Measuring tape (1) -Masking tape (1) -Scotch tape (1) -Beakers 500ml (1) -Beaker 1000ml (1) -Metal spoon (2) -500ml bottles of white vinegar (8) -200g bottles of baking soda (4) -Empty 500ml bottle (1) -Ice-cream stick packets (4) -Rubber band packet (1) -Balloons (10) -Paper towels packet (1) -Glue gun (1) -Glue sticks (4)

Risks:

1. Chemicals (Baking soda and vinegar)

2. Sharp objects (scissors, pen knives etc.) 
3. Explosive launch of rocket
4. Burning by hot glue gun
5. Impact when rocket land

Risk Assessment:


Safety Precautions Taken: 


1. Handle chemicals with care by wearing safety goggles when pouring baking soda and vinegar into the rocket and when it is launching to prevent entry of vinegar and baking soda into the eyes.

2. Be careful when handling sharp objects especially when holding a pen knife. Do not hold the knife like a pencil when holding it, have a firm grip, ensure that the object being cut is on a mat or another wooden board and do not point the pen knife at anyone.
3. When launching the rocket ensure that you are well covered and wear safety goggles to ensure that the explosive back blast does not cause injury.
4. Handle the glue gun with care, when the glue gun is being used, ensure that the barrel of the glue gun is not touched.  When glue gun is not in use, ensure that it is removed from the plug.
5. Launch in open area when no one is there

Methods
1) We will load the rocket with vinegar first.
2) We will then wrap the baking soda in paper towels and load them in the rocket through the bottle opening.
3) After that, we will put the cork on the rocket and shake it to get the two chemicals to mix.
4) Finally we will place the rocket on the launch pad and wait for the rocket to launch.
5) We then collect the results by measuring the distance that the rocket travelled for each different ratios.

Diagrams




Procedures
1) Construct rocket using bottle, ice cream sticks, paper, glue and tape. Create the wings by using 3 ice cream sticks per wing and sticking them together using the glue gun as shown in figure(s) 2, 3, 4 and 8. Then, glue the frame of the wings onto the sides of the rockets before covering it with paper. Use the paper to construct a cone to be glued onto the base of the bottle with is the tip of the rocket. Use ice cream sticks to create a launch pad to allow the rocket to be launched at an angle. 2) Prepare the different ratios of the baking soda and vinegar. However, the total amount of baking soda and vinegar used in all tests will remain the same. The different ratios of baking soda to vinegar include 25 : 325, 50 : 300, 75 : 275, 100 : 250, 125 : 225 and 150 : 200. To measure the amounts accurately, measure using a weighing scale. Most preferably an Analytical Balance. When measuring the amount of vinegar, measure the volume needed through a measuring beaker. 3) Bring the rocket and the launch pad to an open area such as an for it to be filled with the different ratios of baking soda and vinegar and insert the cork into the opening of the bottle before placing it on the launch pad for it to be launched. 4) Take pictures and videos during the launch for record and measure the distance the rocket has reached and the launch pad using measuring tape. 5) Record your findings into a table for comparison. 6) Repeat from step 4 with the different ratio of baking soda to vinegar. In the case of any launch failures and vinegar and baking soda wastages, buy more baking soda and vinegar and repeat the procedures.**

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