Vernier scale

INTRODUCTION Research Question Is the carbon dioxide emission rate per gram (ppm/s/g) of an outer onion (Allium cepa) layer, greater than the carbon dioxide emission rate per gram (ppm/s/g) of an inner layer? Scientific Context Cellular respiration is a catabolic pathway that breaks down complex molecules to more simple ones which release stored energy (World of Biology). The process of cellular respiration produces carbon dioxide (CO₂). It is powered by the oxygen that we take in as we breathe…

Measurement of Static and Kinetic Friction Forces between Wood and a Table Purpose: In this experiment, a spring scale will help calculate the static friction and kinetic friction between a wooden block and table. Several factors impact the amounts of friction, and this experiment examines the factors and how they impact the sliding of the wooden blocks. Surface area of the blocks affect the friction, and the contact between the different surfaces varies for different objects and weights.…

Problem: Is there a relationship between the mass of an object and the force of static friction and force of kinetic friction of that object? If so, what type of relationship is there? Background: Friction is a type of force that is created when two surfaces move across one another. Static friction is friction between two or more solid objects that are not moving relative to one another. Kinetic friction is the amount of friction between two objects that are moving relative to each other.…

Mohamad Al Wazzan Farah Mohamed, Qusay Abdulhamid December 4 2016 December 9 2016 How do Substances react to cow liver? Research Question: How does Liver react when it’s submerged with different liquids ? Background Information: Enzymes are catalysts for chemical reactions in living things, they help the body speed up the rate of virtually all of the chemical reactions that take place within cells.They are very important, enzymes are biological catalysts. Enzymes don’t need a lot of energy…

laptop computer is turned on and connect the Conductivity Probe to the computer interface. Set the Conductivity Probe to the intermediate setting, 2000 μS/cm (0 to 1000 mg/L TDS). Open the file “01A Membrane Diffusion” from the Advanced Biology with Vernier folder of Logger Pro to prepare for data collection. The first portion of this experiment will test whether the different concentration gradients affect the rate of diffusion. Three different concentrations of salt solution will be used…

Introduction A lens is an object that forms images by refracting light. The images formed can be magnified, real and virtual depending on what lens used and the set-up of the lens system. There are two types of lenses, converging and diverging lenses. Converging lenses cause parallel light rays to converge to a point. Diverging lenses cause parallel light rays to diverge. Typically converging lens are thicker in the middle and diverging lenses are thinner in the middle. Lenses are used for many…

IB Standard Level Environmental Systems and Societies Internal Assessment The Effect of Varying Amounts of Yeast on CO2 levels IA1 Isobel Woodfin Third Period October 14th, 2015 Paul Ogle-Sporer, Davis O’Shea SECTION 1: PLANNING Research Question: This lab was designed in order to answer the question: How do increased/varying amounts of yeast affect the CO2 levels of decomposing apple? Introduction: This experiment tests the effect of varying amounts of…

Introduction In our society, people may think Mars would be easier to understand. Similiar to Earth, Mars may has ice and water in its atmosphere, different wheather in seasonal, and other recognizable features. However, conditions on Mars vary wildly from what people know on our own planet.Solar system has influenced numerous cultures effecting legends, religious beliefs and at the beginning of the 21st century. Mars Odyssey have long been achieved which is a part of Mars Exploration…

The aim of the Stress Concentration Experiment was to observe the stress concentration factor/feature for a set of mild steel specimens with various irregularities in each sample. These irregularities or “stress-raisers” include any notches and holes which vary in size (radius) and placement on the specimen (edge notches or holes) that may have an effect on the flow of stress. With the use of a Hounsfield 50 kN electrically operated tensile testing machine and 12 1-mm thick mild steel test…