Essay On Naked Egg

1) Percentage yield experiment: First we measured 20cm3 of sulphuric acid into a beaker using a measuring cylinder, this will help us determine the percentage yield at the end of the experiment. We then heated the beaker containing the sulphuric acid using a Bunsen burner in order to heat it up for the copper oxide to mix with. We then weighed out 1.02g of copper oxide and added it to the acid and stirred it whilst doing so, we did that until the liquid turned blue, this proves that the chemicals have mixed together. We then weighed this liquid which will help us determine the percentage yield. We then filtered the liquid off which gave us the amount we obtained.

Break the eggs and lightly beat them in a bowl. Add the grated cheeses, eggplants, some milk, dill, salt, and peper. Stir well. Taste to see if additional salt is needed. Add to taste.

Since you already have your eggs and vanilla in its time to add your baking soda. You now go and get your 2 teaspoons of hot water and pour 1 teaspoon of baking soda in and wait for it to dissolve. To add main ingredients. Now add the baking soda into the batter. Along with the baking soda add a pinch of salt, 3 cups of flour and 2 cups of chocolate chips.

Crystal violet was then added for 60 seconds before being washed off with water. The mordant, Gram’s Iodine, was added for another 60 seconds before getting washed off with water. The heat fixed smear was then washed with 95% alcohol until the wash ran clear, leading to the final step of adding Safranin for 45 seconds before being rinsed with water. The slide was finally blot dyed with bibulous paper before it was placed under a microscope to observe the color and shape of the bacterium. 2.2 Litmus Milk Reaction

The Incredible Egg The purpose of this lab was to find out what would happen over time to weight of an egg after we scrubbed the eggshell off in a little spot. We then soaked it in water for 10 minutes, 30 minutes, 24 hours and measure how much the weight went up. Once we came back the next day we measured them after 24 hours. In the same day we put the syrup in the cup instead of water and we measured how much it weighed after 10 minutes, 30 minutes and 24 hours. As we did this with the water the weight of the egg went up because the water soaked into the egg and made it heavier.

Big Question Can eggs bounce in different types of liquid? Hypothesis We think that the egg in hot water will become a hard boiled egg so it will bounce,we also think that the egg in chunky milk will become more solid, we think that the vinegar will make the egg bounce Procedure Our procedure is...

When testing one organism, for example Mycobacterium tuberculosis, the dilution is prepared in agar slopes but at this time it is necessary to prepare another identical set to be inoculated with the organism which is control. To make dilution a small volume of water is used and then the dilute is added to agar that melted and then cooled to 60degrees C. If chocolate agar is required blood is added, and the medium must be heated before addition of the antibiotic. Petri dishes with 90mm diameter are convenient to be used and one ml of the desired drug dilutions is added to 19ml of the broth.

This helps leach the minerals out of the bones. Then I put them in the oven to brown for around 20 minutes. Some people don 't do this step. I put the water from soaking the bones in the slow cooker. Any veges, I threw in carrots, garlic, broccoli stems, celery.

Apply gel directly after leave-in. Finally, the good part. Once finished with all the steps, look in the mirror, and shake your head fiercely so that all the excess product and water comes off. Then, let your hair air dry or blow dry with a diffuser, so that maximum volume can been achieved.

The sterile cotton swab was inserted in the S. epidermidis culture and twirled around to obtain a specimen. The entire plate was inoculate with the swab from top to bottom, to achieve a lawn of growth. The dry forceps was used to remove the antibiotic disk into the appropriate spot on the plate. This process was repeated for the all antibiotics with aseptic technique being used. The plate was incubate with lid up on the bookshelf at room temperature for 48 hours.

Step 3: After, shell is removed, carefully remove egg from vinegar and place on a paper towel. Step 4: Record observations of the egg after vinegar. (texture, how it looks, etc……) Step 5: Get your triple beam balance and weigh the egg in grams (remember to place a paper towel underneath egg while weighing) Step 6: Record Measurements Step 7: Place an egg in a one of your 2 cups before placing egg name cup distilled water Step 8: Pour distilled water on top to cover the egg Step 9: Place plastic wrap on top of cup to cover the egg filled with distilled water Step 10: Now take your other egg from the vinegar used to take out shell. Step 11: Record observations of the egg after vinegar. (texture, how it looks, etc……) Step 12: Get your triple beam balance and weigh the egg in grams (remember to place a paper towel underneath egg while weighing) Step 13: Record measurements Step 14: Place the second egg in your second cup Step 15: Pour corn syrup on top of the egg to cover

Osmosis Egg Lab Report Introduction The experiment revolves around selective permeability of the membranes of de-shelled chicken eggs. The eggs have been soaked in vinegar for about 3-4 days to dissolve its shells, which results in a delicate shell membrane connecting the inner contents of the egg. The shell is selectively absorbent only to water. The solution that is the dissolved in the internal contents of the egg is approximately 18-20% which is the solute concentration.

This procedure occurred in the presence a Bunsen burner. The inoculation needle were placed within the open flame 15-20 second in order to sterilize the needle and prevent contamination. The needle was allowed to cool 5-10 second before inoculation. Using aseptic transfer technique the needle was used to gather up some of the colonies on the plate, making sure not to touch anything else with the needle. The test tube was uncapped and the lips of the test tube was passed through the open flame three times.

For Andrew’s first egg-drop he started off saying that it was important that he made a base for his egg drop. As seen in image, IMG_0312.JP, Andrew is in the process of creating his egg-drop base. The first thing Andrew did to make the base sturdy is taping down popsicle sticks creating an x across the bubble wrap. He told us, “I will make an x out of popsicle sticks because this will create more mass, so there will be more air resistance.” He then proceeds to make a barrier around the ends of the bubble wrap using cardboard tubes as seen in image, IMG_0325.JP.

Experiment 13.1 Purpose: To determine the ∆H of a chemical reaction. Materials: 2 Styrofoam cups, Thermometer, Vinegar, Mass Scale, Measuring tablespoon and ½ teaspoon, Lye, and Safety goggles.