The sugar used in this experiment was created by mixing ten milliliters of starch,glucose, and regular countertop sugar. This was transferred into the joint water bottle tunnel using a funnel. Both ends of the tunnel were sealed shut and each measurements were taken every three minutes and final measurements were taken after 21 minutes. The results were
The purpose of this experiment was to observe the relationship between different solutions and their effect on the mass and length of a gummy bear. Gummy bears with the same relative size and colour were placed in 50 mL beakers with the same amount of their designated liquid. The different solutions studied were water, oil, vinegar, a simple sugar solution, and rubbing alcohol. In the end, based on the observations made, the majority of the hypotheses created were not proven to be correct.
In this experiment, we observed the relationship between the number of domatia, the number of mites and the size of leaves of water oaks (Quercus nigra L.) and sweet gum (Liquidambar styraciflua). Domatia are small chambers often located on the lower surface of leaves that serve as homes for predaceous mites. In return, the mites protect the plant from herbivory and pathogen attack. This type of interaction between plants and mites is a form of mutualism, more specifically facultative mutualism. Mutualism is an interaction between individuals of different species in which both species benefit.
During the experiment, observations were made of their color, mass, height, and width. This data shows percent mass change of the gummy bear and how the gummy bear was affected by the salt water. It also displays how the height and the width of the gummy bear changed because of the salt water, which made the gummy bear more compact. The more salt that was added to the distilled water, the more compact it was, however, if there was not a lot of salt in the mixture, it became large and fragile. The mass of the gummy bear was increased as a result of less salt being added with the distilled water.
The purpose of this lab was to determine whether sugar can dissolve in certain solvents. We observed the dissolving rate of 2g of sugar in 50 mL of water, 50 mL of rubbing alcohol, and 50 mL of vegetable oil. It was hypothesized that if the sugar was put in water, it would dissolve faster than if it was put in rubbing alcohol. It was observed that the sugar dissolved in water, but did not in rubbing alcohol or vegetable oil. Therefore, the hypothesis was correct.
In this lab experiment there was one goal and that goal was to use a chemical such as Copper Sulfate to grow crystals from a water solution. This experiment will be a prime example of how minerals crystallize from molten rock material. The whole goal of this experiment is to predict at what exact temperature crystallization will occur in our solution. To obtain this data we will have to have a few different materials and exact measurements. For example we used 50 mg of a concentrated solution this solution will later be raised to a temperature in which we think crystallization will occur.
First, they collected the materials, then they poured water into each cup in even amounts, next they poured 1/8 of sugar in one, then they poured 1/8 of salt into another. They left one cup with just regular water and sat them in the freezer. They regularly checked to see which one froze the fastest. The sugar water ended up freezing first, before the plain and salt water. The plain water froze second, and in the last place was the salt water.
Aim: To model the half-lives of radioactive atoms using Skittles Hypothesis: If we shake 184 skittles, and when they are poured out the ones with the printed “s” facing upwards decay, then it will take 7 half-lives for all “atoms” or skittles to decay. This is because if approximately half decay, then based on calculations, it will take 7 times (give or take) for the number of atoms to fall below 1, hence all atoms having decayed. Materials: 1x family share packet of Skittles 1x Resealable / Zip-lock bag Graph paper Method: 1. Count the number of skittles in your bag and record this number 2.
Paper Chromatography is a method used to separate colored substances and mixtures, such as chemicals. Furthermore, paper chromatography is used to test the amounts of a certain chemical, sequencing RNA and DNA, and purify chemicals. (Sources) https://owlcation.com/stem/What-is-Paper-Chromatography-and-How-does-it-Work https://www.quora.com/What-are-some-uses-of-chromatography The purpose of candy chromatography is to demonstrate that different pieces of candy can be separated into different compounds by the size, solubility, and retention from the molecules itself and the paper.
It is important for parents to make sure that they inspect their children's Halloween candy before allowing them to ingest it. Police stated that parents in Massachusetts found a disturbing object in their child's candy. The substance was blue. At first, it appeared like a nice treat. However, upon further inspection, the parents realized it was something dangerous.
Method In this experiment, we tested our hypothesis through the use of chromatography paper. Chromatography paper have the ability to separate colored chemicals or substances. We also used 10 grams of grinded coleus leaves and grass leaves, 90% acetone, magnesium sulfate, pencil, ruler, forceps, 1 capillary, 1 jar with lid, and a timer to conduct this experiment. We began this experiment by grinding the 10 grams of coleus leaves and grass leaves in 10mL of 90% acetone.
The purpose of this experiment is to successfully grow a crystal. Materials: • Epsom Salt • Food Coloring • Beaker, Small bowl, or Jar Procedure: 1. Bring 1/2 cup of water to a boil. 2.
In the “Candy Waterfall” project, the effects that size and shape have on the rate of mass flow are tested through the use of multiple different granular materials going through a funnel. In lower grade levels students are taught about the three types of matter: solids, liquids, and gases. What are not explained are materials like sand: you can stand on sand like a solid, but you can also pour it out of a bucket like a liquid. Materials like sand are known as granular materials. By testing the rate of granular flow, factories that need to put food into packaging will be able to package products properly if engineers know exactly how fast the item flows out of the machinery.
The minimum at 190oC on the DTA curve indicated the endothermic effect of the melting of the sugar. The TG curve shows that the weight of the sugar did not change up to the melting point. During the sugar melting the process of caramelization began. Initially the decomposition of sugar (disaccharide) to fructose and glucose monosaccharides (by removal of water molecules) occurs. Subsequently, the formation of caramel takes place [19,20].
After the crystals have been formed, they are now in essence, sealed to the side of the cylinder, and to separate the two of them, one must use some of the strongest acids to separate
