STEM INVESTIGATION Our product is the light bulb. As there are many different variations of the light bulb‚ we will just talk about it in general. If a question requires us to talk about other variations‚ then we shall. WHAT IS YOUR PRODUCT? The purpose of our product‚ the light bulb‚ is to provide light in the darkness. WHAT IS THE PURPOSE OF YOUR PRODUCT? The first patent filed for a light bulb was in Canada by a medical electrician in Toronto by the name of Henry Woodward and
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Investigation: 20 How much cobalt is in the soil? Introduction: By completion of investigation 20‚ a standard curve of absorbance versus known cobalt (II) nitrate was prepared. The concentration of cobalt (II) ion obtained from a soil sample was determined. Whether or not cobalt nitrate should be added to the soil was determined. If cobalt nitrate needs to be added‚ then how much will it be required to meet the necessary nutritional needs of the animals was established. In colorimetry
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E-mail: sales@ibo.org Printed in the United Kingdom by the International Baccalaureate Organization‚ Cardiff. 3016 Contents Introduction The Historical Investigation: Guidance for Teachers Frequently Asked Questions The Historical Investigation: Guidance for Students The Written Account Outlines for the Historical Investigation
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Introduction The purpose of this lab is to determine which pigments in a plant support or effect photosynthesis‚ based on starch production‚ which wavelengths of light are involved in photosynthesis‚ and identify plant pigments found in a plant leaf by means of paper chromatography. Life on Earth is dependent entirely on the energy from the Sun‚ not only to keep the planet at a suitable temperature but also to provide the energy required to sustain life. The energy of the Sun‚ in the form of
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Woodlice Investigation Introduction: The ecological niche of the woodlice Porcellio scaber. The woodlouse Porcellio scaber is native to Europe but also commonly found in New Zealand. They live in cool‚ dark‚ damp microhabitats such as in rotting wood‚ under rocks‚ in caves and leaf litter. Small insectivorous rodents and birds as well as some spiders feed on woodlice. In the rotting log from which I gathered my specimens there were also millipedes‚ crickets‚ weta and spiders living. Woodlice
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Mutagenic Effects of UV Light Name: sharon reakae INTRODUCTION A mutation is a permanent change in the DNA sequence of a gene. Mutation rates are usually very low but there are factors that can increase the mutation rates. These factors are referred to as mutagens and conclude a range of physic-chemical agents. UV light is a mutagen that affects all living things and has an adverse effect on the replication process of DNA within cells(.Leonard‚2002) In this experiment we examine the effects of
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INTRODUCTION Investigations are the processes that will be used to describe both criminal investigation and crime scene processing distinctions between criminal investigations and crime scene. Crime scene requires strict scientific methodologies such as collections procedures and testing protocol‚ whereas criminal investigation has less of hard science character and relies more on the experience and skills of the investigator rather than rigid scientific protocols and procedures. Evidence is a
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HIIT or high intensity interval training is basically has a succession of intervals of intense and light exercise. Always starts by heating 2-10 minutes. Then followed the dismissal of the interval (from 20 seconds to 2 minutes) intense exercise and light exercise. Number of pairs interval (fast-slow) depends on the fitness exercisers‚ how long it is this kind of training‚ the duration of the interval and the intensity of exercise in "fast" interval. HIIT training is only one of a modification of
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needed for photosynthesis. The process of photosynthesis occurs in all plants‚ plants absorb sunlight through the leaves using the chlorophyll pigments in the leaf cells. The carbon dioxide diffuses through the stomata‚ under the leaf. The roots of the plants absorb the water from the soil and then the xylem will transport the water and nutrients upward to the leaves. As well as that the roots also store nutrients and anchor the plant. Plants also need Nitrogen to allow them to photosynthesis. Plants
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Testing the effect of light and gravity on plant growth By: Michael Henry Analysis and Conclusion Part.A Day | Change in degree | 1 | 0° | 2 | 63° | 3 | 71° | 4 | 71° | 5 | 78° | Part.B Day | Box with Hole | Box with no Hole | 1 | The plant grew 4.5 inches normally | The plant grew 1.5 inches bit in a rolled/wavy way | 2 | There
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