We also hypothesized that adding blue to the petri dish heat shield and red to another heat shield would cause an increase of floating disks compared to the control‚ which had a heat shield containing only water. The results of the first experiment supported our hypothesis‚ as the spinach leaves exposed
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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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Radish Seed Lab Report Problem: What caffeinated drink (monster‚ coffee‚ or green tea) will the radish seeds grow in the best form over a nine day period? Hypothesis: If the radish seeds put in the dish with the drink Monster‚ then the seeds will grow faster because of the amount of energy given to them. The amount of caffeine in Coffee is much greater than the amount in green tea and Monster‚ but neither coffee nor green tea contains any extra type of an energy booster like the Monster does.
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each solution and placed in 7 Petri- dishes. 2. The potatoes were weighed for each slice and recorded the weight in the table. 3. 2 ml of sucrose solutions was added in each of 7 Petri-dishes contain the following: a. Petri-dish 1: 0.01M b. Petri-dish 2: 0.02M c. Petri-dish 3: 0.05M d. Petri-dish 4: 0.1M e. Petri-dish 5: 0.3M f. Petri-dish 6: 0.5M g. Petri-dish 7: Distilled water 4.
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microscope slide | * Water (20cm²) | * Microscope slide cover | * Caffeine Solution (20cm²) | * Microscope | * 1 daphnia | * Thermometer | * Stopwatch/timer | * Petri dish * Two experimenters | * Pen * Paper | 1. A concaved microscope slide is placed in a lidless Petri dish. 2. A tiny strand of cotton wool
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Temperature‚ bacteria‚ Petri dish‚ agar‚ nutrient broth‚ time Manipulating Variable: Antibiotics (Penicillin‚ Neomycin‚ Erythromycin) Responding Variable: Zone of inhibition Materials: * Petri dish * Nutrient broth * Cotton swab * 37 degree Celsius incubator * Forceps * Ruler * Permanent marker * tape Procedure: 1. Gather supplies 2. Make lines on the back of the Petri dish separating them into 4 equal quadrants 3. Swab Petri dish using Q tip with
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THE EFFICACY OF AMPICILLIN IN WHITE GLUTINOUS CORN KERNEL EXTRACT (Zea mays) IN INHIBITING SALMONELLA BACTERIA Nanie Rose Marien B. Blanco Mahri Joie N. Inocencio Christine S. Ventura IV-Enrico Fermi Ms. Esperanza R. Sabangan Research Adviser 2010-2011 RECOMMENDATION FOR ORAL EXAMINATION This research proposal entitled‚ THE EFFICACY OF AMPICILLIN IN WHITE GLUTINOUS CORN KERNEL EXTRACT (Zea mays) IN INHIBITING SALMONELLA BACTERIA prepared and submitted by NANIE ROSE MARIEN
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Investigating Question: Does the concentration of salt in the water‚ affects the germination of the seed? Purpose: To see if the salinity of the water affects the germination of the seed‚ before its put into the soil. Back Ground Information: Seed germination is the sprouting or growth of a seed into the start of a plant. When environmental factors such as moisture‚ temperature‚ oxygen‚ and sometimes light are appropriate‚ a viable seed will begin to germinate. Salinity (salt-affected)
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temperature Apparatus/materials: • Pipette • Petri dish • Filter paper • Silicon grease • Needle • 0.1%‚ 0.2%‚0.3%‚0.4%‚0.5% of caffeine solutions • Daphnia culture Methodology: • Select a large specimen and‚ with a pipette‚ transfer it to the centre of a small‚ dry petri dish. with filter paper remove excess water from around the specimen so that it is completely stranded • With a seeker place a small blob of silicone grease onto the floor of the petri dish. Then wipe the needle clean and use it
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that its native environment is under rocks in bodies of water. Materials and Methods: The materials we used were the microscope‚ a small brush (to extract the planarian)‚ slides‚ petri dished‚ black paper‚ glue‚ talc powder‚ a flashlight‚ and liver pieces. First‚ we placed the planarian into the petri dish; we observed its initial movements. They seemed to stray away from light sources. When we touched its body‚ it did not respond. When we touched its head‚ it curled up and tried to get away
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