April 12, 2013 Lab Report: Effects of temperature on oxygen consumption Introduction: In all animals, the acquisition of oxygen and elimination of carbon dioxide are required for survival. Oxygen is taken from the environment of the animals by diffusion from the air or water. Animals such as a fish that live in the water only have the oxygen that is dissolved in the water. A fish, exchanges gases across the secondary lamellae of their gills. Water flows over the gills and is continuously pumped by the mouth.
How does the Amount of Dissolved Oxygen Affect the Number Of Macro-organisms in Biosphere 3? Background Information: Dissolved oxygen (DO) is a relative measure of the amount of oxygen dissolved or carried in a given medium. While air is essential for all human beings to breathe, aquatic organisms such as fish, plants, and aerobic bacteria all need dissolved oxygen to respire. Adequate dissolved oxygen is necessary for good water quality. Natural stream purification processes require adequate oxygen levels in order to provide for aerobic life forms.
According to Thales, everything is water. Everything that we touch and feel and see and experience derives from water. His claims state that everything comes from water, which is something physical, instead of mental. He used biology in order to figure out and understand how the universe was producted and came to the conclusion that it came from water. When you give water to a plant, that plant survives but when you take away that water, the plant dies.
Determining the cause and effects of water pollution in Lake Huron contributes to finding solutions for cleaning up our waterways and improving public health. There are three categories to which causes Lake Hurons pollution: 1) Point-source Pollution 2) Non-point source pollution and 3) Air-pollution. Point source pollution refers to mercury, fecal matter, and sewage from treatment plants and industrial facilities, being dumped into the lake. Non-point source pollution refers to the polluted water from crops or lawn that was run-off which contains contaminants such as: oil, sand, salt from roadways, agricultural chemicals, and nutrients with toxic material from urban or rural areas. Mostly Air pollution is also a major concern.
Every part in our body depends on water. If we don’t fuel our body with enough water it can lead to dehydration, which is a condition that occurs when we don't have enough water in our body to carry on normal functions. The daily recommendations for water can be easily determined with this equation 0.5 ounces x Body Weight in Pounds = Daily Fluid Requirement in ounces. Our water contains essential nutrients, such as minerals selenium, sodium, chlorine, fluoride, calcium, magnesium, copper, zinc and iron. Those are nutrients that the human body cannot produce, but they are essential for our health.
The nutrients that are produced through decomposition at the bottom of the aquatic environment are locked out from the warm surface water due to the thermocline. Phytoplankton, which are at the base of the marine food chain and are primarily marine plants found in surface waters. The lack of nutrients in surface waters in the tropics hinders high productivity of phytoplankton and zooplankton, which plays a role in the crystal, clear appearance of the water. In temperate waters, the thermocline (year long in tropical) is only the summer and breaks up in the fall allowing the nutrient rich bottom to mix with the surface water. Climate change allows for several high and low blooms of plankton through changing seasons.
ABSTRACT Three experiments were completed to determine the quality of water that had been contaminated, soiled, and to determine the differences between the water that comes from a kitchen sink and the elegantly bottled water that is conveniently sold in the store. Using various Earth materials (sand, rock, soil, and charcoal) combined with scientific materials (beakers, funnel, and alum), the first two experiments tested the effect of contaminated waters filtered through a simple soil filter, as well as a complex Earth model filter. The final experiment used various test strips to test certain potential differences between tap water and bottled water. Testing Man’s Naiveté of Our Water Quality Drinking water in the United States has undergone many quality standard transformations throughout the 1900’s up until present day. There are many rules to follow when building structures, removing waste, and even when it comes to farming in all its forms.
Research Question: To determine the effect of different concentration of Sodium bicarbonate of 1g, 2g, and 3g to the number of bubbles produced by pondweed in five minutes when submerged at 200mL distilled water at a distance of 5cm, 10cm and 15cm from the light source. Introduction to the experiment Photosynthesis is a crucial process for every plant. Every plant needs energy (ATP) for their survival. Plants use light energy to convert carbon dioxide and water into energy and oxygen. Light energy has a major role in this process.
I also chose to research oceanography because most of earth is made of water. Oceanography also relates to me and and society. We use things from the ocean in our everyday life. Scientists use fish oils for medications and vitamins. Also things in the ocean can be used as food.
Mini Ecosystem inside a Jar Lab Report By Student X, B2 Question/Purpose: Does the amount of water in the jar/ecosystem affect the organisms living inside? (And if so, what kind of effect does it have on them?) Hypothesis: If we only add half the amount of water we put in the control jar to the experimental jar, then the ecosystem will be less healthy (for example, the plants, fish, and snails might die earlier) because organisms need water to survive. Also, since the water is what they’re living in, more water means more room to live. Materials: Two 1-liter glass jars with lids One guppy per jar Two snails per jar Aquatic plants (equal amount in both jars) 200 mL of gravel total (1 inch layer on bottom of each jar) Water – almost up to the top of the jar for the control group, and about halfway full for the experimental Variables: Constants: Guppy x1 Snail x2 Aquatic plants Gravel Manipulated: Water (specifically, the amount of water – half full in experimental, full in control) Method/Procedure: 1) Set up the control jar by filling an empty jar with water and adding a layer of gravel on the bottom, one guppy fish, and two snails.