a Container Affects Its Rate of Heat Loss Aim : To investigate how changing the volume of water in a container affects its rate of its heat loss. The variable of this investigation is the volume of water which is put in the container. What I already know: I already know that the larger the volume of water there is the less heat loss occurs. I can tell this from my previous pilot experiment where I investigated‚ if the volume of water in a beaker affects its rate of cooling. In this experiment
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protection Each working group will require: Glass beaker (100 cm3) Conical flask (100 cm3) Spatula Glass stirring rod Filter funnel (Note 1) Filter paper (Note 2) Bunsen burner‚ tripod and gauze Heat resistant mat PROCEDURE Stage 1 a Add 20 cm3 of the 0.5 M sulfuric acid to the 100 cm3 beaker. Heat carefully on the tripod with a gentle blue flame until nearly boiling. SAFETY: Be very careful not to knock the tripod while the beaker is on it. b When the acid is hot enough (just before
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Beach In A Beaker Introduction: The purpose of this lab is to create a heterogeneous mixture from substances commonly found at the beach. Sand and salt water will be added to the beaker to be separated. The sand will then be separated through the means of filtration. Then the salt will be separated from the water through evaporation. Theory: If the heterogeneous mixture is separated through filtration then the salt water and sand should be separated completely.A heterogeneous mixture is a mixture
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Biology Coursework Practical Heat Loss The aim of this practical is to find to what extent does the surface area to volume ratio of an object affect the rate of heat loss from the object Hypothesis: As the ratio of surface area to volume of an object decreases the rate of heat loss from the object will also decrease. Objects with the same surface area to volume ratios loose heat at the same rate so long as there are not other variables involved. Background Knowledge: The surface area
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HOW THE SHAPE OF THE BODY AFFECTS THE TEMPERATURE LOSS Introduction Small organisms have a surface area that is large enough‚ compared with their volume. As a results they lose heat rapidly when the environmental temperature is lower than their body temperature. However when the animal gets bigger their volume increases at a larger rate than their surface area‚ so the surface to volume ratio decreases. Adaptations help organisms to survive in their habitats. Adaptations can be structural‚ behavioral
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(2) 100 mL Beakers (2) 250 mL Beakers Procedure: 1. Pour 50 blue beads and 50 red beads into a 250 ml beaker. Without looking‚ randomly take 50 beads from the 250 mL beaker and place them in a 100 mL beaker (this is beaker #1). 2. Pour 50 green beads and 50 yellow beads into a second 250 mL beaker. Without looking‚ randomly take 20 beads from the 250 mL beaker and place them in the other 100 mL beaker (this is beaker #2). Note: When done‚ return beads to their respective beakers (1 or 2) for
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Actual Mechanism of Heat Loss during Exercise High heat and humidity reduce body’s ability to lose heat by radiation or convection and evaporation. While exercising‚ the heat production within muscle and it is transfer from the core to the skin. Under appropriate environmental conditions‚ excess body heat dissipates to the environment which regulates the core temperature within a narrow range. During exercise in the heat‚ the heat loss mechanisms compete with the active muscles for more of the
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(Average Diffusion rate in mM/min) Solute Membrane (MWCO) 20 50 100 200 NaCl (—) 0.0150 0.0150 0.0150 Urea (—) (—) 0.0094 0.0094 Albumin (—) (—) (—) (—) Glucose (—) (—) (—) 0.0040 1) Which solute(s) were able to diffuse into the right beaker from the left? NaCl‚ Urea‚ Glucose 2) Which solute(s) did not diffuse? Albumin 3) If the solution in the left beaker contained both urea and albumin‚ which membrane(s) could you choose to selectively remove the urea from the solution in
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2014 The Hedwig Glass Beaker When we think of beakers we think of cool experiments we’ve done in science class in middle school to measure fluids‚ or contents‚ approximately. Sometimes we also think of beakers as cups‚ something that we drink out of or use for everyday use in the kitchen. Hundreds of years ago‚ particularly during the medieval times‚ beakers were not how we see them today. To be more specific‚ beakers‚ or Hedwig Glass beakers‚ were miraculous beakers that turned water into wine
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Ladies and gentlemen‚ Welcome to our press conference for the launch of our new fiction text‚ “The story of Tracy Beaker” by Jacqueline Wilson. The book was awarded as Blue Peter People’s Choice Awards in 2002. Afterwards‚ the BBC‚ a famous TV company‚ has made a TV adaptation of the book. Perhaps you’d like to know more about what made the text a success‚ wouldn’t you? Let’s begin with the interesting content. At the Start‚ Tracy has been adopted by Julie and Ted. They stop fostering Tracy
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