Surface Tension Steven Brignol Dr. Payne September 15 Introduction: Water’s ability to stick to itself is surface tension. In this lab we were able to measure and detect surface tension by dropping water‚ drop by drop‚ onto a penny. The quantity of droplets that fit on the penny was impressive. Hypothesis: The detergent will thicken the water making a tighter surface tension. Prediction: If soap increased the surface tension‚ then expansion will happen. Materials: (1) Pipette (2) Water
Premium Liquid Experiment
Science Behind the Galileo Thermometer The Galileo thermometer‚ used to measure temperature‚ is mainly used for home décor nowadays. The stylish thermometer used in people’s homes today is based off of a thermo scope Galileo invented in the early 1600’s. Although not exact‚ the Galileo thermometer is moderately accurate. The thermometer has several glass blown bubbles‚ with a colored liquid inside which is just for decoration. The bubbles have metal tags attached to the bottom of them with an engraved
Premium Temperature Density
Derricka Joe Period 5 1 Oct.‚ 2014 Lab Experiment One: Physical Properties Lab Analysis: For our first unknown‚ we observed the color and odor of the substance. The substance was a clumpy‚ white‚ crystal-like substance and it smells like new plastic. When we tested the solubility in water it resulted insoluble and in ethanol it resulted soluble. This substance could not be tested for electrical conductivity because the water was insoluble. We then tested for the PH value and it was neutral. The
Premium Oxygen Water Ethanol
Evelyn Ramos CHEM LAB 201-003 Professor Ruddock Experiment #4 - Chemical Reactions Performed: 3/6/13 DUE: 3/13/13 Pre Lab Questions: 1. Before you can write a chemical equation‚ what must you know? You have to know what the products and reactants are. 2. What observations might you make that suggest that a chemical reaction has occurred? If a gas is produced or precipitates are formed that indicates chemical reaction. Also‚ if color changes occur or
Free Solubility Chemical substance Chemical reaction
Evonne Zhang 9/28/12 Galileo Galilei Galileo Galilei was a Roman Catholic and a scientist during the 16th and 17th centuries. He was prisoned because he went against the Church and their religion. The Church believed the geocentric model to be true. The geocentric model‚ theorized by Aristotle‚ had the Earth as the center of the planetary system‚ with the sun going around the Earth. Galileo believed the heliocentric model to be the true model. The heliocentric model‚ theorized
Premium Galileo Galilei Planet Sun
Experiment 1 Cyanobacteria Oxygen Production Through Photosynthesis Date Performed: September 2‚ 2014 I. Introduction a. Background Cyanobacteria or blue green algae are renowned for their tolerability and susceptibility even in wide range of environmental conditions‚ a characteristic of many primitive organisms. CNB are believed to be the agents of autotrophic origin of life thus they probably represent the survivors of the earliest photosynthetic plants‚ along with photosynthetic and chemosynthetic
Premium Photosynthesis Cyanobacteria Algae
Experiment 1: The Effects of Coal Mining Coal mining‚ particularly surface mining‚ leads to large areas of land being temporarily disturbed. The mine workings collect and conduct water that is in contact with the widespread pyrite‚ a mineral that produces iron and sulfuric acid when exposed to air and water. In this lab‚ you will see first-hand the reasons why mine drainage can be harmful to the local drainage system if left untreated. Materials: (3) 100 mL Beakers 1 tsp. Crushed pyrite 1 tsp. Activated
Premium Coal Sulfur Carbon
Experiment E: Post lab Natasha Buckiewicz (130361780) IA: Matt Halloran Due: November 26‚ 2014 1. This experiment followed GCP number 8 which is reduce derivatives. This experiment did not use unnecessary derivation since the reaction was not modified in any way. No additional reagents were required so it did not generate a lot of waste. 2. Safer solvents and auxilaries (GCP #5) was not used in this experiment since the experiment used a solvent to complete the reaction. The reaction used both
Premium Chemistry Temperature Solvent
Lab 5.3 SPRINGS- HOOKES LAW Group member: Submitted by: Submitted to: Class: Due: Lab 5.3 SPRINGS- HOOKES LAW Purpose: To study the characteristics of a spring. Hypothesis: With an increase in weight there will be a directly relatable increase in spring length. Additionally each spring will increase to different expected lengths. Materials: -Light spring -Dense spring -Brass spring -Masses -Ruler
Premium Elasticity Force Robert Hooke
Copernicus and Galileo Galilei must be mentioned for their great contribution in the world of Astronomy. Comparing Copernicus with Galileo‚ we see that Copernicus made great discoveries which Galileo would later use in making his scientific discoveries and proofs. Copernicus is regarded to as the father of Astronomy because of his great contribution towards making the universe understandable to many people. This essay focuses on major accomplishments of Nicholas Copernicus and how Galilei Galileo used them
Premium Universe Nicolaus Copernicus Science