Solutions

1. a. My data demonstrated the law of conservation of mass in part 5 of the experiment, dissolving sugar in water. The law of conservation mass states that matter cannot be created or destroyed by can enter or leave the system. The system’s change in mass was 0.00 grams, resulting in support of this statement. The balance had an uncertainty of 0.05 grams. b. With this experiment, we had a closed environment within the vial, not allowing any particles to come in or out, further explaining why…

John Cole Hairston Biology Lab 2107 W 7:00 October 14th, 2015 Analysis of Consumer Products with Unknown Protein Concentrations Using Spectrophotometry Abstract Consumer products typically give detailed information about their ingredients and nutrients. However, the concentration of a specific nutrient may not always be clear from just the label information alone, and in some cases the product labels may not be accurate. Thus, it may be hard to compare the concentration level of a certain…

3. For this demonstration, we took two bok choy leaves. One leaf we kept the same, the other we removed sixty percent of the leafy area. We placed the leaves in blue dye and let it sit for ten minutes. After, we cut the leaf from the bottom up into one centimeter pieces. Once cut, it was visible that the bok choy leaf that had not been partially removed had more blue dye in the upper petiole compared to the other bok choy leaf. In the bok choy leaf where sixty percent of leafy area had been…

h Lab Report Katelyn Gularski (Hayly Stein) PM Tuesday 9/9/14 Introduction The purpose of this lab was to separate the mixture of salt, sand, and shells, so that each could be individually massed and the percentage-by-mass could be determined. The best way to get the sand and shells by themselves is to get rid of the salt. Since salt is dissolvable in water, you use water solubility (Hallows, 2014). Water solubility is defined as a substance being able to completely…

In this lab, the effects of osmosis on an egg without a shell will be observed; an egg will be submerged in water and then corn syrup. Osmosis, the process of water moving from a low concentrated area to an area of high concentration, is the main theme of this lab. The purpose of this experiment is to view the effects of an egg in a hypertonic state, hypotonic state, isotonic state and diffusion. Hypertonic is the movement of water leaving the egg to an area of higher concentration. When this…

Eggsperiment Purpose Is an egg similar to a human cell? Hypothesis If the egg is put in milk, then the shell will grow back. According to Mama Natural, “High-quality eggshells contain 27 essential microelements but they’re mostly composed of calcium carbonate, a form and structure that’s very similar to our bones and teeth.” Also, according to My Plastic Free Life, “eggshell powder contains roughly 400 milligrams of calcium per gram.” Since the milk I use, 2% Fat, has 295 milligrams in one cup…

These first five questions were asked to test Kimora’s ability to create concrete operational thoughts. It was designed for her to use her classification skills to come up with the correct answer. Kimora answered all questions with confidence, but was unable to understand that one set of object could contain another. She was able to see all three smiles, and two sunglasses, but only two pictures therefore the amount of pictures and sunglasses were the same amount. The next activity was using 3…

Non-Newtonian fluids are plentiful in the world, both natural and man-made. Undoubtedly, they are consumed nearly every day. Foods such as cream, ketchup, honey (“Non-Newtonian Fluids”), mayonnaise, cranberry sauce, or jelly (Roth-Johnson) are non-Newtonian. For example, in order to get ketchup out of the bottle, it must be shaken. Once that has been done, it squirts out of the bottle with ease. Also, if the near-solid honey is continuously stirred, then the honey becomes more liquid than solid.…

Growing Gummy bears What gummy bear turned out to be the biggest after being put into 3 different liquids ? Hypothesis If you put the gummy bear in the sierra mist it will grow bigger than being put in the vinegar or the water Procedure Fill your cups with 5 tbsp of sierra mist 5 tbsp of vinegar 5 tbsp of water Put your choice of color of gummy bear in the 3 different cups Wait for about 12 hours Take the gummy bears out of the cups Put the gummy bears out on a plate and compare the sizes…

How Many Drops of Water can a Penny Hold? Statement of the problem/purpose: The purpose of this experiment is to see how many drops of water a penny can hold. The point of this experiment is to teach the class about cohesion. Cohesion is the molecular force between particles within a body or substance that acts to unite them. Cohesion is in easier terms the bubble on top of the water you are pouring or the skin. It is like overflow without spilling over the side. Hypothesis: My hypothesis is…