and would move away from white side and go to the dark side. The independent variable was the two sides of the petri dish‚ which had one white region and one dark region. The dependent variable consisted of how many
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Please notice the attached page for the data of each seed. In the Petri dish labeled “hollycock”‚ Experiment Group A. the group tested a total number of twenty (20) radish seeds (Raphanus sativus)‚ out of the twenty (20) seeds‚ there was only a twenty-five (25) percent of germination‚ and only five (5) seeds had actually
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The materials used in the process of the petri dish were the petri dish. Then the nutrient agar was used in the petri dish. Also a cotton swab(Equate) was used in the process as well. The last thing used was 2 pieces of tape to close up the petri dish. First the tape was taken off the petri dish. The Equate Q-Tip which was bought from Sam’s Club. After the petri dish was taken to the bathroom to grab the sample needed for the petri dish. Then the Q-Tip was rubbed about 7 to 8 times in the
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experiment: Prove that microbes are everywhere Materials required: Agar dishes NA‚ Petri dish S.D.A.(sucrose dextrose)‚ swabs‚ cotton bud‚ labels and marker. Procedure: (A) – Isolate microbes from me (bacteria) 1- We marked‚ divided by 4 and labeled the bottom of our Petri dish. 2- On NA we swabbed areas such as: chicks‚ rings‚ underneath of a watch‚ sink and disinfectant trigger 3-We closed the petri dish‚ incubated it upside down‚ on 300C‚ for 48 hours. (B)- Isolate microbes
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specimens in test tubes A‚ B and C are allowed to incubate for 2 hours. 8. Mark the 3 petri dishes - A‚ B and C. Remove the lid and using the syringe‚ extract 10 ml of the sample mixture from test tube A and place it in the center of petri dish A. 9. Use a new syringe to extract a 10 ml sample from test tube B and place it in dish B and repeat for test tube C/dish C. 10. Replace the petri dish lids and store the petri dishes in a cool and shaded
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people who don’t like the cold temperatures will do things inside‚ just so they don’t go outside. This shows how a stimulus can affect an organism’s behavior and what they do. Hypothesis: For my hypothesis I wrote‚ "If the pill bugs are in the petri dish with the other chemicals then they will go to the filter paper where the sugar is more so then the other filter paper that has chemicals on it". I choose this hypothesis for many reasons. First off‚ I know that most organisms‚ bugs‚ insects‚ etc…
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Rate of Evaporation of Different Liquids Objective of the Project This project is of the rate of evaporation of different liquid‚ in which we also discuss the factors which affect the rate of liquid. Introduction When liquid is placed in an open vessel. It slowly escapes into gaseous phase ventually leaving the vessel empty. This phenomenon is known as vaporization or evaporation. Evaporation of liquids can be explained in the terms of kinetic molecular model although there
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side on the petri dish. Control: The unlighted side of the opened up petri dish. Purpose: To determine the light sensitivity of terrestrial isopods (rolypolies) in different levels of lighted environment. Number of Trials: Three 30‚ 60‚ and 90 second trials for each specified level of light at 1‚ 2‚ and 3 meters distance. Constants: The temperature of the room‚ petri dish‚ time trials for each trial of light distance testing‚ and the number of trials. Materials: Clear petri dish‚ one projector
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bacterial inhibitor; therefore‚ they save both money and time. If the disinfectants are applied to the bacteria‚ then the zone of inhibition will increase because disinfectants are antimicrobial agents that are applied to non-living objects‚ and a petri dish is a nonliving
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Investigating the effects of acid rain in the growth of cress seedlings IntroductionAcid rain is rain or any other form of precipitation‚ which is unusually acidic. It has harmful effects on plants‚ animals and buildings. Acid rain is mostly caused by human emissions of sulphur and nitrogen compounds which react in the atmosphere to produce acids. Acid rain can slow the growth of vulnerable forests and cause leaves and needles to turn brown and fall off. In addition‚ it depletes minerals from the
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