To accurately determine this, each trial will have recorded dependent and independent variables, constants and a control. The hypothesis being researched, indicates higher temperatures allow for a rapid rate of dissolution. In this particular case with someone needing Alka Seltzer, they will feel better faster if they use hot water to dissolve the medicine before
observations ½ tab 17.9 55.30 1 ½ tab divided in 2 pc. 19.5 49.37 The pieces of alka-seltzer were drawn to each other in the cup ½ tab divided n 3 pc. 20.8 37.24 The pieces of alka-seltzer were drawn to each other in the cup ½ tab 19.4 52.01
Step 1: Calculate the mean, median, and standard deviation for ounces in the bottles. Answer: Mean 14.87 Median 14.8 Standard Deveiation 0.55033 For the full calculation, refer to Appendix #1 at the end of the essay.
The name of the lab is “Drops on a Penny.” I was expected to find the independant variable, dependant variable, write a hypothesis, and test the experiment. After testing the experiment multiple times, I needed to find the average amount of drops for each trial, graph them, and tell what kind of relationship it is. The last thing I needed to do was rewrite the details of the project and write a conclusion. The point of the experiment was to have the students get used to the idea of a lab, and get familiar with independent and dependent variables.
a. Water boils to produce steam at 100 C (212 F) b. Water produces gas with sodium metal c. Water and oil separate when combined d. Water dissolves sugar 22. In the experiment, students put brine shrimp in water with different concentration of salt and counted the number. Which of the following changes to the experiment will increase confidence in the validity of the result? a. Count the number of dead brine shrimp instead of living brine shrimp b. Add more brine shrimp to the water with the highest salt concentration c.
The hypothesis of this lab was If there is three building materials (limestone, red sandstone, and granite) are soaked in vinegar for ten minutes, then granite will be the best material to use for the statue because it it the strongest of the materials. This hypothesis was proven true because even though granite nd red sandstone had the same change in pH level. It was observed that the red sandstone was changing the vinegar a tint of red, showing that the red sandstone was being broken down by the vinegar. The measurements of the control validate this experiment because if there was no control then there would be nothing to compare the data to in the end. Without the control data the data collected would be useless.
The purpose of the M&M Math Project was to figure out what is the most and least recurring color M&M in a regular M&M bag and if the most and least common would change if the M&M product was changed such as to the Pretzel M&Ms. First, I bought four packs of regular & pretzel M&Ms. Next, I put one pack of M&Ms into four bowls, then, separated the M&Ms into six colors and counted them by color and did the same for the Pretzel M&Ms. The results were fairly close to what I had hypothesized.
Be cautious when performing this experiment as water may spill on the floor, slip and injure yourself badly. Check the floor surface area for any puddles of water and wipe down with as many dry paper towels needed. Take care when handling with equipment that is made out of plastic or glass because when dropped, the glass or plastic may shatter into pieces which can be very dangerous. If needed, ask a responsible adult to help out in the experiment to avoid injuries.
Use gaffer’s tape to secure any loose cables to the nearest light stand. Use the following steps: Provide a little slack in the cable, so that you can increase the height of the light stand freely. • Wrap the tape completely around the stand once. Leave about an inch of extra tape to create a pull-tab for easy removal. • With the power cable sitting between the light stand legs, place a piece of tape across the cable, and secure to the floor.
As you know, I love doing crafts, but sometimes they don’t always work out. Slime is one of my favorite DIYs to make. In my magazine, there is a recipe for how to make the perfect slime. When you make it, you have to be careful about how much activator you add to it. And if you add to much, then your slime will not turn out good.
The experiment consisted of a practice session and four experiment sessions. The practice session contained 12 trials. Each experiment session contained 100 trials. Between two sessions there was a 3-minute break. An experiment trial started with a 100 ms warning beep, followed by a 300 ms pause.
In this experiment, the question being asked is, how does the temperature of the hotplate and water affect how fast the chocolate melts? The three types of chocolate that will be used are white, 70%, and 90%. It was hypothesized that the white chocolate will probably melt the fastest because there is more cocoa butter and sugar and there are no cocoa solids. The 70% cocoa chocolate will most likely melt the second fastest because of it has the least amount of cocoa solids. The 90% cocoa chocolate will, in all likelihood, melt the slowest because it has the most cocoa solids.
This experiment has to be carried out carefully
Conclusion In conclusion my hypothesis was right and the wet bread grew the most (and only) mould. I can logically assume that the more moisture the bread has, the more mould it will grow. This was a fair test because each of the bread pieces had equal time to grow. The End In this experiment the conductor finds out that mould needs moisture thus needs to be included to conduct the experiment.
