liquid evaporates faster Hypothesis: Acetone evaporates faster than kerosene‚ water and alcohol. Conduct an Experiment: Get .3 mL of each liquid Observe it for 3 minutes until it evaporates Gathering Data: Kerosene = 2 minutes and 3 seconds Water = 3 minutes and above Acetone = 1 minute and 22 seconds Alcohol = 1 minute and 52 seconds Conclusion: Acetone is evaporates faster than the other liquids such as alcohol‚ kerosene and
Premium Evaporation Liquid Scientific method
Surname Centre Number Candidate Signature Other Names Candidate Number Date Leave blank General Certificate of Secondary Education June 2008 / June 2009 SCIENCE / BIOLOGY ISA B2.2 Photosynthesis ASCC/BLYC/B2.2 To be conducted before 4 May 2009 For submission in May 2008 or May 2009 or May 2010 For this paper you must have: • results tables and charts or graphs from your own investigation. You may use a calculator. For Teacher’s Use Section Mark 1 Time allowed: 45 minutes
Premium
without electricity Need in Rural India In India 72‚000 Villages‚ 400 million people have no access to electricity. Kerosene lamps presently used by several rural families emit poor quality light and release lethal toxic fumes that cause an array of health and environmental problems. Furthermore‚ there exist dangers from burning kerosene lamps overturning and drinking of kerosene by children‚ which has caused even death in certain cases. Today‚ rural families in India spend large fractions of their
Premium Lighting States and territories of India Light
public and private sectors go for automation in their process. Civil Supplies Corporation is the major public sector which manages and distributes the essential commodities to all the citizens. In that system various products like Rice‚ sugar and kerosene are distributed using conventional ration shop system. Some of the limitations of conventional ration shop system are • Due to the manual measurements in the conventional system‚ the user cannot able to get the accurate quantity of material
Premium Measurement Government Supply and demand
One quiet night‚ Cohn was heading over to the O’Leary barn for a famous gambling game. Legend has it that Mrs.O’Leary’s cow knocked over a kerosene lamp and that started the fire. Others believe that “Pegleg” Sullivan started it‚ or Bella’s comet did it. But in reality‚ Louis M. Cohn was the one who started the Great Chicago fire. Louis Cohn started the fire during his famous gambling night. He was the only culprit who admitted to starting the fire. So‚ if he didn’t do it‚ who did? Louis M
Premium Crime Al Capone Prohibition in the United States
in this lab is an aluminum block apparatus; the block has several holes drilled into it and embedded in them is a resistance heater‚ a thermistor‚ and a thermometer. In addition‚ a simple circuit is attached to the aluminum block with breadboarding for connection to the circuits built in the lab. The embedded resistance heater is used to heat the aluminum block. The heater is essentially a resistor that generates heat by the principle of Joule’s Law in which a current running through a resistor converts
Premium Temperature Resistor Celsius
can save nearly 500 pounds of CO2 per year if you have an electric water heater‚ or 150 pounds for a gas heater. 3. Make sure your dishwasher is full when you run it and use the energy saving setting‚ if available‚ to allow the dishes to air dry. You can also turn off the drying cycle manually. Not using heat in the drying cycle can save 20 percent of your dishwasher’s total electricity use. 4. Turn down your water heater thermostat. Thermostats are often set to 140 degrees F when 120 is usually
Premium Incandescent light bulb Fluorescent lamp Energy conservation
1. What physical evidence did you find at the victim’s home? A box of matches‚ a space heater‚ beer bottles‚ Natalie’s wallet‚ a V-shaped burn pattern‚ burned outlet‚ a protected surface on the ground‚ crazed glass‚ and a puddle-shaped burn pattern. 2. Describe the process that you used to take a sample of the puddle-shaped burn pattern on the floor. Why did you also take samples from the portion of the floor that was not burned? First‚ I took the chisel to loosen up some of the wood chips
Premium Chromatography Gas chromatography Light
Problems with your water heater
Premium Water Management Risk
the Standard Oil trust which would influence all big businesses in the country. Following the Civil War‚ the petroleum business would boom into "black gold." The kerosene derived from petroleum would produce a much brighter light than the currently used whale oil. However‚ when Thomas Edison’s light bulbs were in use‚ kerosene oil became obsolete to the lighting industry. The invention of the automobile would
Premium Industrial Revolution United States Petroleum