Rube Goldberg Machine Lab Report

1. The volume of the gummy bear increased when we put it in water for twenty four hours. Originally, the volume of the bear was 1.75cm3. After the bear was in the water for twenty four hours, its volume increased to 10.5cm3. So, to find the change in volume, you subtract the new amount from the original. 10.5cm3-1.75cm3= 8.75cm3. The change in volume is 8.75cm3.

The Mythbusters observed the myth that driving whilst talking on the phone is as dangerous as driving drunk. They formed their hypothesis that driving on the phone is as dangerous as driving drunk. Then, they tested their hypothesis. They created an experiment that would have participants drive a car through a course three times. Each time a participant went through the course, they experience different conditions. The first time, both participants drove through the course normally. This served as the control group for the experiment. The second time, participants were asked questions over the phone while they completed the course, and, the third time, they were drunk when they drove through the course. Throughout the experiment, there were several independent variables in place to ensure that only one variable was being tested.

Three paper towels A, B, and C where tested on absorbency. This experiment was tested twice. Paper towel A was 26.5 by 28 centimeters. Paper towel B was 26.5 by 28 centimeters. Paper towel C was 15 by 28 centimeters. Scissors were obtained and each paper towel was cut to 13.5 by 15 centimeters. The weight of the three paper towels at this size was 0.9 grams dry for paper towel A, paper towel B weighed 0.8 grams dry, and paper towel C weighed 1.2 grams. Three beakers weighing 12.2 grams each were obtained. Each beaker was filled with 100ml of water with the outcome of them weighing 128.1 grams each. The weight of each paper towel dry was deducted from the weight of each paper towel. Paper towel A was left to soak for seven seconds.

The purpose of this lab was to save a little gummy worm named Sam from drowning. In addition, one of the labs key terms was a hypothesis which is a supposition or proposed explanation made on the basis of limited evidence as a starting point for further investigation. Furthermore, we also learned that an independent variable is a factor that is changed during the experiment. On the other hand, the dependent variable is the factor that is observed or measured during the experiment. To begin with, the experiment the hypothesis formulated was if we reshape the paperclips into hooks and pick up sam, and the lifesaver (without touching them), then the lifesaver would be stretched enough for Sam to go through it.

Rubisco is the most abundant protein on earth that is essential for carbon fixation in plants. For the protein to function at its optimal level, it needs to be isolated from the mixture of proteins and in its purest form. The three isolation techniques carried out in this lab are salting out, ion exchange chromatography, and SDS-PAGE. Rubisco will be purer as each technique is conducted and will be in its purest form after the last isolation technique is carried out.

When analyzing the IR spectrum of Ruthenium complex with DMSO, the prominent peak is presented at 1105.54 cm−1. This peak indicates that S=O bonded in DMSO. For DMSO, the frequency is around 1050 cm−1. From our spectra obtained for DMSO where the S=O peak is at 1017.65 cm−1. Since the bond appears at a higher frequency, this shows that the bond is strengthened by the reaction. This indicates that when the copper metal was combined with DMSO, it bonded with the Sulfur atom. Combining ruthenium with sulfur atom caused it to donate a pi electron as a back donation.

The lab five B was about friction and how its always present. The purpose of this lab wat to explore how friction affect motion. There are three types of friction we discuss like air, rolling, and siding.

After completing this experiment, our tap water hypothesis was correct, and our saltwater hypothesis was also proven. For the tap water, the gummy bear expanded as we thought it would. This was because of osmosis. The water outside of the bear diffused into the bear from the higher concentration outside into the lower concentration inside of it. The gummy bear was a selectively permeable membrane. This made a hypotonic solution, and the water rushed into the bear, making it get bigger. For the salt water, the bear shrunk as we predicted, also because of osmosis. This was a hypertonic solution, so the water rushed out of the bear, making it smaller. So our hypothesis for both tap and salt water were correct. We carried out the experiment properly

4. Place the mass on the bottom of a ramp and attach the loop of string to the

The imagine that is displayed in the textbook is called the Rube Goldberg Machine. It was invented by a cartoonist named, Jeffrey Coolidge, whom was known for displaying simple tasks in complex ways. The image presented in the textbook, is showing how to turn on a light switch, by moving necessary objects with certain amount of force to be triggered. One must first set the obstacle into action for the effect to happen.

The Mythbusters tested the idea that driving while talking on a cell phone is just as dangerous as driving drunk. To test this, they had two people attempt the same driving course three times: once sober with no distractions, once sober while distracted by a phone conversation, and once intoxicated. The independent variables in this experiment are, therefore, the use of a cell phone and the driver’s alcohol level. The dependent variable is the driver’s ability to successfully complete the course, including stopping on time and avoiding the cones outlining the course.

I love gummy worms I been in a gummy worm factory I fell in love with it just the flavors and sweet texture just grab my attention not in that way. I use to buy gummy bears a lot everyday I had a little bit of a sweet tooth my mom just always buy me some gummies at dollar the store. It's kinda funny how i just always on my birthday my mom would ask me what i want for my birthday I would just say money and gummy worms. My mom would just be cool with it she really didn't even care she wasn't buying expensive things that's why.

The Effect of Tonicity and Osmosis on Gummy Bears Introduction Gummy bears work the same as a cell’s plasma membrane because they allow the movement of water molecules in and out of the gummy bear. The plasma membrane is known as selectively permeable because it allows movement of certain molecules and blocks the movement of others. Active transport is an example of a movement that requires a carrier protein and the use of energy to move against the concentration gradient. Passive transport is simply the movement of molecules without the use of energy.

The Rube Goldberg Project, assigned by my science teacher to instigate creativity and out of the box thinking, brought out the ingenuity in all of us. Our task was to create a Rube Goldberg Machine that was capable of ringing a desk bell. Individually or in groups, we had to build the machine and present it to the class. This task seemed moderately simple, but in truth, it was much more complicated than any of us had realized. Specific requirements needed to be met that further hardened the project.

The overall purpose of the lab is to have the students practice designing an experiment, gathering data, and then analyzing that data to form a conclusion using the scientific method. It also served to understand key terms such as hypothesis, dependent variable, and independent variable. The specific objective of this lab is to determine whether certain human body parts experience allometric or isometric growth. Allometric growth defines when certain parts of an organism grow at unequal rates in comparison to its whole, while isometric growth is when all parts of an organism grow at the same rate in comparison to the entire organism. The specific purpose of the lab is to determine whether or not specific human body parts experience allometric or isometric growth by comparing the ratios of height to two specific body parts, in the students’ case the right hand length and head circumference, in students and newborns. The students formulated the tentative answer that if a team of four compared their height to right hand length ratio, as well as, their height to head circumference ratio, to those of a newborn’s, then the students will discover that the right hand and head experience allometric growth in humans.