film you can see shimmer in the light. The oily film you see is actually two separate layers of soap attached to‚ and surrounding‚ hydrogen-bonded water. Solar Oven S’mores Materials • Pizza box • Two clear sheet protectors • Black construction paper • Duct tape • Clear masking or packing tape • Box knife • Scissors • Thermometer (optional) • Wooden skewer • Glue stick (Elmer’s glue will work‚ too) • Tin foil • Ruler • Pen The Solar Oven is what is more widely known as a solar
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LAB REPORT Introduction: In a chemical change‚ the identities of substances change and new substances form. In an equation the substances on the left are the reactants. The substances on the right are the products. In this experiment the objectives are to observe evidence that a chemical change has taken place. Infer from observations that a new substance has been formed. Identify and record observations that show energy is involved in chemical change observe the color‚ solubility of some substances
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Lab #4: The Immune System Purpose: The purpose of this lab was to perform and understand the procedures of conducting an ELISA test to determine whether a particular antibody is present in a patient’s blood sample through a virtual simulation. Hypothesis: If I successfully complete this lab‚ I will then understand how to perform an ELISA test‚ the purpose an ELISA test‚ and also how to interpret the results of this test. Materials and Procedures: Materials: Howard Huges medical
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Nervous System lab was designed to measure reaction times by using a variety of tests that affect the heart rate. These tests were the startle‚ stroop‚ Valsalva maneuver‚ diving reflex‚ and a test of our choice. The test our group chose to measure the heart rate in response to doing a trust fall to anticipate the stress right before the fall. To begin this lab we chose a participant‚ and then hooked their finger up to the pulse transducer sensor. Using the chart 5 program on the lab computer the participant’s
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“The Evolution of Airplanes” Introduction This year is the 200th birthday of Charles Darwin (1809-1882)‚ the father of evolution. Darwin’s evolution theory proposes that all species of organisms‚ including human beings‚ evolved from common ancestors. There are five main characteristics in his evolution theory. First‚ there are variations among each population. Second‚ organisms compete for limited resources to exist. Third‚ traits of offspring are inherited from their parents. Forth‚ organisms
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Are Airplanes Safe? TWA Flight 800‚ Egypt Air Flight 990‚ and Alaska Air Flight 461 and countless other flight numbers from the past decade all have one major thing in common with each other. All three are commercial airline flights that have gone down with no survivors‚ and all of these flights have happened in the past five years. All three of these mentioned accidents got extensive publicity in the few weeks after they occurred‚ the reason for this was because of the great number of people that
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impossible idea has become a reality‚ thanks to the invention of the airplane. This was a remarkable achievement in the field of science and technology that allowed our world to intermix culturally and improve our efficiency. With these benefits‚ however‚ comes drawbacks such as the numerous hazards of riding an airplane. One major benefit that the invention of the airplane resulted in is improved efficiency. The creation of airplanes has given people the ability to judge the amount of time it takes
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Lab Report Abstract: The purpose of this lab was to see how magnesium reacts with oxygen. This reaction must be forced with heat. As magnesium changes to magnesium oxide the mass increased. Procedure: 1. Set up the stand and bunsen burne. 2. Go to crucible heat oven to obtain a crucible. 3. Weigh the crucible and lids mass. 4. Break up the magnesium ribbon on the crucible and weigh the mass of the magnesium‚ crucible‚ and lid. 5. Place the crucible on the ring stand over the flame. Allow
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How to Fold an Advanced Paper Airplane Introduction Knowing how to fold a paper airplane is an easy and cost effective way to impress your friends as well as teaching yourself a new skill in less than ten minutes. These instructions will guide you to creating a paper airplane that is easy to remember and effective at flying. Note: Folding should take place on a flat surface. Also‚ you can follow the figures at the bottom of the page step by step for further clarification on how to complete the instructions
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Lab Report Janice Chisholm SCI207: Dependence of Man on the Environment Instructor: Lee Ott April 28‚ 2013 1. What patterns do you observe on the information table 4? While observing the information in table 4‚ it appears that the number of fish changes from time to time and the oxygen increases and / or decreases when this occurs. 2. Develop a hypothesis relating to the amount of dissolved oxygen measured in the water sample and the number of fish observed in the body of water?
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