whether salt affects the movement of water in the cell. Independent variable is the factor that affects the value of variables dependent to it. In osmosis lab‚ the independent variables are the potato and onions. The dependent variable is the variable whose value is measured to determine the extent of the effect of another variable to it‚ as in an experiment. In osmosis lab‚ the dependent variable is the length of the potato. The controlled variables are the amount of water‚ amount of salt‚ and the
Premium Concentration Osmosis Chemistry
3. Why are stabilisation salts added to evaporated or condensed milks prior to heating? The heat stability of milk is of tremendous importance in the successful processing of milk and the manufacture of most dairy products. Appropriate application of heat becomes necessary not just for destruction of spore-resistant micro-organisms but also for the preservation of the most desirable product characteristics. However‚ milk should not coagulate on heating. Heat coagulation is chiefly caused by de-stabilization
Premium Milk Acid Water
experiment was about the effect of soapy water on plants. The hypothesis was‚ “If plant A is given 10 ml of plain tap water every other day for two weeks and plant B is given 10 ml of soapy water (5 ml softsoap and 5 ml plain water) for the same amount of time then‚ plant A will grow at least 3.0 cm taller than plant B.” The Hypothesis was supported. Plant A grew 13.6 cm while Plant B grew only 5.2 cm. The Independent variable was water‚ food‚ plastic cup‚ sunlight and soapy water. The Dependent Variable
Premium Water Water cycle
Grade 12 Biology (SBI 4U1) Nicole Mikulis Unit: Biochemistry Sept 14 2012 Lab: Effect of temperature and pH on catalase activity BACKGROUND Catalase is an enzyme that detoxifies chemicals that might harm the cell such as hydrogen peroxide (H2O2). The enzyme breaks H2O2 into water and oxygen. The production of the oxygen gas bubbles serves as evidence that the catalase enzyme is working. As catalase is breaking the bonds between H2O2‚ it is releasing energy in
Premium PH Enzyme
The Effects of Sea-Level Rise on Coastal Salt Marshes and their Associated Ecosystem Services Katelyn M. Nyberg Introduction Climate Change The Intergovernmental Panel of Climate Change (IPCC) has observed an increase of 0.19 meters of global mean sea-level rise from 1901 to 2010‚ with “about 70% of the coastlines worldwide projected to experience a sea level change within ±20% of the global mean” (IPCC 2014). Dramatic increases in sea-level are produced by increasing temperatures which cause glaciers
Premium Coast Wetland Climate change
The Effect of Cold Water on Goldfishes Research has shown there is a higher respiration rate in goldfishes when placed in cold water. There are many different varieties of fishes that can adjust to different atmospheres but the most common household fish that can is the goldfish. The goldfishes identified as the Carassius auratus was one of original fishes to be domesticated by China a thousand years ago in addition there are more than 100 goldfishes but only 20 are sold today. Common goldfishes
Premium Shark Fish Goldfish
Just Tap It: The Negative Effects of Bottled Water “In Canada‚ bottled water consumption was estimated at 24.4 litres per person in 1999. By 2005‚ that had increased to about 60 litres per person‚ with sales worth $652.7 million” (CBC News‚ 2008). This dramatic increase in bottled water consumption does not come without severe repercussions and has caused a chain reaction of unfortunate events. Although easily available and terribly convenient‚ bottled water negatively effects the environment‚ is extremely
Premium Bottled water Drinking water Water
officially ban. Modern audiences have become accustomed to attitudes‚ language‚ and stories that are political‚ graphic‚ violent‚ and more than just a little bit avant garde. Obviously‚ such was not the case in the blacklisting days of the 1950s! “Salt of the Earth” violated every aspect of the white‚ middle-America‚ conservative mindset of 1954. As a political statement‚ it demonstrated the inter-connection that exists between working class‚ feminist‚ environmental and Latino concerns‚ and yet it
Premium Mexico Film Bertolt Brecht
Osmosis using potato cores and sucrose solution 1.0 Abstract This experiment’s ultimate goal is to find the water potential of the potato cell. This was achieved through placing potato cores in different concentrations of sucrose (0.2%‚ 0.4%‚ 0.6%‚ 0.8%‚ 1.0%‚ 2.0%‚ 3.0% and 4.0%) solution and to observe how much water was gained or lost through osmosis to reach a prediction of the concentration within the potato cell. The results displayed that the concentration of sucrose within the potato cell is
Premium Osmosis
Middleton World Area Studies September 20‚ 2013 The Effects That Water Scarcity Has On Education You wake up at seven thirty‚ you’re hungry‚ your stomach hurts‚ and your feet hurt. But you have to get up anyways. You have to go get your families water‚ but its contaminated water‚ you could get sick from this and your family could get sick‚ you miss school because you are the oldest in the family and it’s your responsibility but it’s the only water source where you live. Many children in Kenya are
Premium Water crisis Water supply School