PLANT GROWTH EXPERIMENT Numerous environmental variables influence plant growth. Three students each planted a seedling of the same genetic variety in the same type of container with equal amounts of soil from the same source. Their goal was to maximize their seedling’s growth by manipulating environmental conditions. Their data are shown below. Plant Seedling Mass (grams) Day 1 Day 30
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Evaluation Evaluation Experiment one: This experiment was quite accurate‚ as when it is compared to the manufactures line which is on the same graph‚ we can see that this line is at most only 0.4? different form the manufactures line. This is a percentage difference of approximately 8%‚ using the formula: Difference ? original X 100 This shows that the results were good‚ as 8% is a very small margin of error. The error bars on the graph show that the most inaccurate result was the 60cm result
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self-regulation is emerged. So‚ where does it all begin? Childhood. Pre-school is a great place to start teaching self-regulation. An experiment that I believe to be a useful demonstration of educating children on their self-regulation is group games that promote leadership skills. Materials Needed for Experiment: • Pilot’s hats Procedure To begin this experiment the marshmallow test must be administered to the kids and the results must be recorded. We then separate the kids into two different
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Ballistic pendulum designed experiment Aim: to investigate how the mass of the projectile affects distance on the motion of a wooden block it strikes Hypothesis: the heavier the projectile the further the distance will be covered by the wooden block Variables: variables Identification Manipulation Independent Mass of projectile The four different masses will be used in different combinations Dependent distance Measured using tape measure Controlled 1. Height of retort stand 2. Release angle
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Surface Tension Steven Brignol Dr. Payne September 15 Introduction: Water’s ability to stick to itself is surface tension. In this lab we were able to measure and detect surface tension by dropping water‚ drop by drop‚ onto a penny. The quantity of droplets that fit on the penny was impressive. Hypothesis: The detergent will thicken the water making a tighter surface tension. Prediction: If soap increased the surface tension‚ then expansion will happen. Materials: (1) Pipette (2) Water
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the experiment‚ the observational study and the survey. An experiment is a scientific method in which data are collected to be tested to prove a hypothesis using either independent variables in a closed environment or dependent variables in an opened environment. There are two types of experiment‚ the laboratory experiment that is as its name suggests conducted in laboratory and the field experiment conducted in a natural environment. The advocates of positivism support the use of experiment due
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There were 3 main experiments that were conducted in the 19th century. The first experiment was conducted in 1928 by Frederick Griffiths. He was able to establish that there is a substance being transmitted from one generation to another. For this experiment Griffiths used two types of pneumococcus bacteria (the bacteria that is responsible for causing pneumonia). He used the smooth strain (S) which had an outer capsule that acts as a protective shield from the host’s immune system and rough strain
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ME 304 – Experimental Engineering Spring 2013 Lab Report Experiment # 3 Bending of Beams Section # ThTh12 Group # 1 Ömer Ege Çalışkan Serhat Karakuz Noyan Uğur Renda Turgut Soydan 20.03.2013 Abstract In this experiment‚ a simply supported beam is used and the variations of deflection of a simply supported beam with load‚ beam thickness and material are investigated. It is found that the deflection of the beam changes linearly with the load and as the beam
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BSummary of Brain Asymmetry Introduction In the Brain Asymmetry experiment‚ the independent variable is the construction of the chimeric faces: one has the younger face on the left and the other has the younger face on the right. The dependent variable is the percentage of reports that chimeric face with the younger face on the left looked younger. The group of left-handed subects acted as a control group and helped to rule out the general left-view bias. It is hypothesized that percentage of reports
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The Elvis Experiment Introduction: In this experiment we will determine how the difference in length and diameter of a blood vessel have an effect on the resistance of blood flow and how the viscosity of blood will also effect the resistance of blood flow in a blood vessel. Observation: My mom is a big Elvis fan and she always wondered how his health affected his death. Knowing that he had high cholesterol and high blood pressure I decided to do an experiment on what factors may have had an effect
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