... present in an object Qualitive-a type of observations that you use your senses for color, odor and texture. Quantitive- a type of observation that you get measurements on how long, how much and how big. Conclusions-the results or solution to your observations Observations- looking at something using your senses and noticing changes and attributes. Percent Error- calculations and measurements used as a comparison ... liquid was proved to be methanol. The true density of the unknown liquid was .785 g/ mL. The reason methanol was chosen to be the unknown liquid was because it had the close...

• Word Count: 1154
• Approx Pages: 5
• Grade Level: High School

... of the abdomen[1]. During sexual reproduction the male penis is inserted into the females gonopore, where the sperm is then transferred to the structurally modified second pleopod. The sperm is stored in a seminal receptacle, a swelling on the oviduct. Fertilization can only take place when the eggs are shed soon after a moult, when the connection is established between the seminal receptacle and the oviduct. The eggs remain within the brood chamber/marsupium on the underside of the female ... 's will show no preference for any of the 6 sections of the choice chamber apparatus when given...

• Word Count: 9930
• Approx Pages: 40

... was done by resin beads which reacted with the water by ion exchange, which removed the Ca and Mg ions. This concluded the lab and with all this information, we compared and made conclusions about our water samples. This experimental procedure was completed in order to find the hardness of samples of water. My group has chosen three different types of tap water from three ... different areas in order to show the comparison of the hardness of tap water. The samples were taken from East Halls (Hastings) in State College, a house in Pittsburgh, PA (2418 Rolling ... one reason it was taken...

• Word Count: 2264
• Approx Pages: 9
• Grade Level: High School

WHAT HAPPENED TO THE WATER? I have chosen to write my paper on the effects that we have on our most important resource, water. The article I chose to go along with my paper was out of The Detroit News 5-24-00. The article discussed the problems that Metro Detroit has had with their outbreaks of e. coli in many of the area beaches. After reading the article I thought that it ... in Florida. In 1993 the Florida Bay suddenly became dead. The reason, the high concentrations on fertilizer and pesticides among other chemicals flowing from large agricultural developments especially sugar plantations...

• Word Count: 1185
• Approx Pages: 5
• Has Bibliography
• Grade Level: High School

WHAT HAPPENED TO THE WATER? I have chosen to write my paper on the effects that we have on our most important resource, water. The article I chose to go along with my paper was out of The Detroit News 5-24-00. The article discussed the problems that Metro Detroit has had with their outbreaks of e. coli in many of the area beaches. After reading the article I thought that it ... in Florida. In 1993 the Florida Bay suddenly became dead. The reason, the high concentrations on fertilizer and pesticides among other chemicals flowing from large agricultural developments especially sugar plantations...

• Word Count: 1185
• Approx Pages: 5
• Has Bibliography
• Grade Level: High School

... water systems. The quality of the catchment determines the quality of the water harvested from it. Few communities have pristine water sources and the quality of water from most sources is at risk from activities occurring in the catchment. Importance of Water: More than 70 per cent of the Earth's surface is covered by water. The oceans and seas contain 97 per cent of all the water on the planet. Less ... than three per cent of the Earth's water resources can be described ... water and, with most rivers dammed or regulated, this issue is receiving increasing attention from governments, ...

• Word Count: 1501
• Approx Pages: 6
• Grade Level: High School

... of operating conditions provides the fastest rate of evaporation. The rate of drying will be determined by observing the amount of time it takes to reduce the mass of the desiccant from the saturated condition to the dry condition. The dry condition mass will be pre-determined by using a microwave to bone-dry the desiccant. The following heat balance can describe the rate of drying on the surface: dw/dt ... are being considered in this laboratory experiment are temperature and air flow velocity. The dependent variable will be the time it takes to dry the desiccant, from which a rate of ...

• Word Count: 1646
• Approx Pages: 7
• Grade Level: High School

... total use. Perth and Canberra, (bracketed figures are for Canberra. Sources: Stokes et al. 1995 (Perth); NCDC 1989 (Canberra). The pattern is similar for all Australian cities, with the major item in all cases being watering of the garden. Water saving strategies: Perth's Water Future (Stokes, et al., 1995) is a valuable addition to the literature on the reduction of urban water use because it converts domestic water ... use efficiencies listed are all attainable with present technology. Benefits to the consumers and the water companies vastly outweigh costs involved in the installation...

• Word Count: 2299
• Approx Pages: 9

... water fluoridation is safe and effective for all individuals. Although they do admit that in an excessive amount of fluoride can cause white flecks on the teeth, they also say that anything in a large amount is bad for you, including oxygen, water and iron. Another pro water fluoridation ... as pharmacies. If the population is divided I think that, if possible, have two water systems. One would have unfluoridated water and the other fluoridated. A consensus would be taken in all New Zealand homes to see what one you would prefer, and then you would be given your chosen water through a ....

• Word Count: 2705
• Approx Pages: 11
• Has Bibliography