# data[].attributes.body
1.  Put on goggles.
2.  Fill the film canister 1/2 full with room temperature water.
3.  cut an alka-seltzer tablet into 2 halves and break into large chunks.
4.  Partner with tape measure walks to the opposite end of launch pad ready to watch where the rocket lands.
5.  Get lid ready to snap onto film canister.
6.  Place 1/2 large chunks of alka-seltzer tablet into the film canister and immediately snap the lid on tight.
7.  Place the rocket on the launch pad start line positioning the rocket at the same angle every time on its fin pointing toward the opposite end of the launch pad .  aim it between the boundaries.
8.  After rocket launches, both partners watch for landing of rocket and measure the distance traveled from launch pad.
9. If rocket travels outside of boundaries, walk rocket straight back into assigned area and record distance traveled from new placement of rocket.
10. Record distance (meters) traveled in data table.
11. Write written observations of rocket launch and draw diagrams.

12. Repeat control steps #1-11 two more times for trials 2 and 3

# data[].attributes.body
1.  Put on goggles.
2.  Fill the film canister 1/2 full with room temperature water.
3.  cut an alka-seltzer tablet into 2 halves and crush it.
4.  Partner with tape measure walks to the opposite end of launch pad ready to watch where the rocket lands.
5.  Get lid ready to snap onto film canister.
6.  Place 1/2 crushed alka-seltzer tablet into the film canister and immediately snap the lid on tight.
7.  Place the rocket on the launch pad start line positioning the rocket at the same angle every time on its fin pointing toward the opposite end of the launch pad .  aim it between the boundaries.
8.  After rocket launches, both partners watch for landing of rocket and measure the distance traveled from launch pad.
9. If rocket travels outside of boundaries, walk rocket straight back into assigned area and record distance traveled from new placement of rocket.
10. Record distance (meters) traveled in data table.
11. Write written observations of rocket launch and draw diagrams.

12. Repeat control steps #1-11 two more times for trials 2 and 3

# data[].attributes.body
The purpose of the experiment was to see what made the rocket go the farthest.  during the experiment i put 1/2 tablet of crushed alka-seltzer into a film canister that was 1/2 full of water and i put the lid on as fast as i could.  the control results were 5.75, 5, 5.5 the variable 1 results were 2, 6.75, 9 the variable 2 results were 5.75, 2.53, 7.95.  my claim is that crushed powder works the best when you do  Alka-Seltzer Rockets. I think that Alka-Seltzer rockets work best with  crushed powder my  partner thinks that crushed powder is worse then large chunks. I think that  crushed powder is better than large chunks. I believe that the crush powder  sent the rocket  farther than large chunks, the evidence shows that large chunks have a shorter distance then the  crushed powder.

if I add a crushed  1/2 Alka-Seltzer tablet to 1/2 canister of room temperature water then I think the size of the Alka-Seltzer tablets will cause the rocket to travel farther because the pieces of Alka-Seltzer will be smaller so they will dissolve in the water faster than if it is in one large chunk. My hypothesis was correct because the crushed Powder made my rocket go  2 meters on the first trial, 6.75 meters on the second trial, and 9 meters on the third trial. I heard a fizzing sound from my rocket I saw little carbon dioxide  bubbles coming out of my rocket,  I could smell the faint  scent of soda.

Possible errors in testing that could have  affected results the lid not being on properly, being to slow to put the lid on, Messing around and not listening to the teacher, having the film canister at the wrong angle; pointing canister at the roof or at the ground and having it too far down. The effects these have on the results are that it could affect the distance that my Rocket travels and that could mean that my data would not be correct. some improvements words would be to have a ramp That is at a 45 degree angle that would help  my rocket go farther than it did in the experiment,  I could pay more attention to the teacher and speedily put the lid on, listen to the teacher about the angle that my rocket should be at without a ramp.

in science class we have learned that Alka-Seltzer tablets have baking soda and aspirin in them when those combine with water it fizzes up creating carbon dioxide gas when the carbon dioxide gas is trapped in a small container with no way out it builds up and creates pressure on the top of that container launching the cap.   my claim is that crushed Alka-Seltzer works better   than large chunks of Alka-Seltzer the evidence shows that my claim is correct because the crushed Alka-Seltzer made it go at 9 meters the large chunks Made It Go 7.95 meters. all of this evidence proves that crushed Alka-Seltzer works better than large chunks of Alka-Seltzer  proving my claim Correct.

# data[].attributes.body
i saw carbon dioxide bubbles, i heard a hissing sound, i could smell soda.

# data[].attributes.body
1 glass beaker, 300ml room temperature water, 1 pair of goggles, 2 packets alka-seltzer, 1 film canister with lid, 1 knife, and one tape measure

# data[].attributes.body
1.  Put on goggles.
2.  Fill the film canister 1/2 full with room temperature water.
3.  cut an alka-seltzer tablet into 2 halves.
4.  Partner with tape measure walks to the opposite end of launch pad ready to watch where the rocket lands.
5.  Get lid ready to snap onto film canister.
6.  Place 1/2 alka-seltzer tablet into the film canister and immediately snap the lid on tight.
7.  Place the rocket on the launch pad start line positioning the rocket at the same angle every time on its fin pointing toward the opposite end of the launch pad .  aim it between the boundaries.
8.  After rocket launches, both partners watch for landing of rocket and measure the distance traveled from launch pad.
9. If rocket travels outside of boundaries, walk rocket straight back into assigned area and record distance traveled from new placement of rocket.
10. Record distance (meters) traveled in data table.
11. Write written observations of rocket launch and draw diagrams.

12. Repeat control steps #1-11 two more times for trials 2 and 3

# data[].attributes.body
1.  i will be using crushed alka-seltzer tablets for each trial.
2.  i will be using large chunks of alka-seltzer tablets for each trial.
3.  i will be using half of a film canister of room temperature water for each trial.
4.  i will be using half of a film canister of room temperature water for each trial.
5.  i will be using room temperature water for each trial.
6.  i will be using room temperature water for each trial.
7.  i will be doing 3 trials for each variable.
8. mrs. macpherson will be measuring the distance traveled in meters for each launch of the rocket

# data[].attributes.body
if i add 1/2 tablet of crushed alka-seltzer to 1/2 canister of room temperature water then i think the size of the alka-seltzer tablet will cause the rocket to travel farther because the pieces of alka-seltzer will be smaller so they will dissolve in the water faster then if it is in one large chunk.

# data[].attributes.body
this experiment on co2 rockets examines characteristics sof chemical reaction, specifically, the production of gas. Important terms to understand are CO2, sodium bicarbonate, citrate acid, Alka Seltzer and the production of gas. I also have observed several characteristics of chemical reactions such as flammability, change of color, production of light and temperature change. The information found in this experiment will emphasize the link between chemical reactions and the production of carbon dioxide gas.

A chemical reaction is a reaction based on different chemicals. Some signs of a chemical reaction are a change of temperature, for example extreme heat or extreme cold. A production of light, like when you crack a glow stick. PRoduction of a new solid or precipitate. Also, if it changes color, like from clear to white, or white to grey. The parts of a chemical reaction are reactants and products. Some examples of chemical reactions in our everyday lives are when we light a candle, when we crack a glow stick or when we bake a cake.

Alka Seltzer is made of citrate acid and sodium bicarbonate (baking soda). The chemical reaction that occurs is with Alka Seltzer and water. Bubbles form of Carbon Dioxide when you put the Alka Seltzer tablet into water.

on Christmas and my birthday my mom makes a cake or pie as the pie/cake bakes it gives off heat and the cake rises.  i have seen what happens when you put baking soda into vineger it is cool and funny at the same time.

# data[].attributes.body
i don't have a partner for data collection.
control: half room temp. water/half alka-seltzer.
independent variables 1 and 2: crushed tablets and large chunks of alka-seltzer.

# data[].attributes.body
if i add crushed and chunks of alka-seltzer tablets and add it to half a film canister of room temperature water how will it affect the distance the rocket travels?