How Does the Water Temperature of the Frog’s Environment Affect Its Physiological Factors? Defining the Problem and Selecting Variables In the investigation of "how does the water temperature of the frog’s environment affect its physiological factors"‚ the dependent variable is the frog’s physiological factors‚ the independent variable is the water temperature of the frog’s environment‚ and the relevant controlled variable is the frog’s body temperature‚ heart rate‚ breathing rate‚ and blood pressure
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In the experiment‚ as the size of the cube decreased‚ the absorption rate increased‚ showing that the smaller cells absorbed more sodium hydroxide than bigger cells. The smaller cells were able to absorb more sodium hydroxide as they have a bigger surface area to volume ratio causing them to act more efficiently than the bigger cells. The smallest cell had a ratio of 1:12 while the biggest cell had a ratio of 1:2‚ leaving a gap of 5:12 causing the bigger cell to act less efficient in absorbing the
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lObjective This experiment explores how salt and sugar affect the melting rate of ice in water. Research Questions: * Does adding salt to ice and water slow down‚ speed up‚ or not change the rate the ice melts in the water? * Is salt the only substance to have this effect? What about sugar? Knowing how to speed up the melting rate of ice is very important information for anyone who needs to de-ice roads or driveways after a winter storm. While it seems simple‚ adding salt to ice water
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Abstract I found that this experiment gives me an understanding on how osmosis and diffusion works. In its simplicity‚ it explains the process that our bodies (mainly cells) use all the time. It also showed me that even with the temperature changing‚ it doesn’t drastically change the rate of diffusion. Introduction Diffusion is important in all living systems. Osmosis is the passage of water from a region of high water concentration through a semi-permeable membrane to a region of low water
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The effect of temperature on a reaction rate In this experiment I shall be investigating how temperature affects the rate of reaction Rates of reaction The Factors that affect the rate of reaction are temperature‚ surface area‚ concentration‚ catalysts‚ light and pressure Surface area – Surface area is the amount of solid surface that is available for reaction - Only affects solids so this will not affect our
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Enzymes are biological catalysts that speed up the rate of chemical reactions by lowering the reactants’ activation energy. The goal of this lab was conducted to determine the optimal temperature for bacterial and fungal Amylases and evaluate how temperature affects the catabolic rate of enzymes. Enzyme reaction rate was measured using an Iodine test in which drops of starch solution with either fungal or bacterial Amylase exposed to different temperatures were mixed with Iodine. Iodine is a dark blue
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LABORATORY 3 The Effect of Temperature on the Rate of PNPP Hydrolysis Partners: Shelby Cruickshanks Alexis Williamson Introduction Most of the chemical reactions‚ which occur throughout our bodies‚ would proceed at a much slower rate of reaction without the presence of an enzyme. Cells can not wait for centuries for molecules to break down‚ if they waited for that‚ there would be no way for the organism to obtain energy or in turn survive. This is where biological catalyst comes into
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The Effect of Temperature on the Rate of Diffusion Damsel C. Bangcal Aira May V. dela Cruz Jacqueline L. Lacuesta Richelle Jem P. Jobog Group 1 Section U-2L November 17‚ 2014 ___________ 1A research proposal submitted in partial fulfillment of the requirements in General Biology I Laboratory under Proj. Joan O. Adajar‚ 1st semester‚ 2014-2015. INTRODUCTION Molecules undergo constant motion and move in regions with a higher concentration to a lower concentration
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How Does Temperature affect the Ability to Bounce of a Ping-Pong ball? Physics Design Practical Research Question How is the bounce-height of a ping pong ball affected by it’s temperature? This research questions aims to find out how the temperature of a ping pong ball affects the vertical height bounce‚ after being dropped from 1 metre. I will be measuring the bounce height using a video camera to find the heightest point. I will use the top of the ball for ease of results. Hypothesis:
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Background……………………………………………………………………2 1.2 Definition of interest rates……………………………………………………..2 2.0 How does an increase interest rate affect the economy in the UK? 3.1 Encourage people saving money and reduce borrowing……………2-3 3.2 Decrease firms to investment……………………………………………..3 3.3 Promoting the exchange rate‚ and makes exports less………………...3 3.4 Reduce the aggregate demand and inflation rate………………………4 3.5 The price and cost will fall………………………………………………
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