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Why temperature is important

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Jorge Rodriguez

on 6 April 2014

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Transcript of Why temperature is important

What is temperature?
Temperature is the degree or intensity of heat present in a substance or object, it can be measured by a scale called the thermometer. Temperature defines how hot or cold something is and helps us prepare for the weather.
America is the only country in the world to still use Fahrenheit, and the formula for equating Celsius and Fahrenheit isn't exactly well known. to change Celsius to Fahrenheit, you multiply the number by 1.8 and add 32. To reverse it, you subtract 32 and multiply by 5/9.
How do you take accurate temperature measurements?
It is very inexpensive and simple to take accurate temerature measurements. All you need to do is take a beaker, fill it with water, and set a thermometer in it. After a few minutes, take it out and check the temperature. You now know the temperature.
How does temperature vary with depth and different seasons?
The temperature of water is affected by a lot of things, and one of the most important ones is depth. The closer the water is to the sun, the warmer it will be because sunlight produces heat. So the water closer to the surface is warmer, compared to deeper parts where sunlight can't reach. The reasons why temperature vary with different seasons is because of the Earth's rotation. Heat comes from sunlight, and the side the of the Earth that faces away from the sun is colder, compared to the side of the Earth that is being hit directly by sunlight. Also, if sunlight is spread out across one area, it tends to be less warm. If the sunlight is concentrated on one place, that place would be warmer. So temperature is affected by certain things, but can also affect others.
How does temperature
affect aquatic life?
Temperature affects the amount of oxygen and dissolved oxygen available to organisms. The warmer water is less dense, so it is closer to the surface. Whereas colder water is more dense, therefore found in deeper water. Organisms that need more oxygen can be found in deeper, cooler parts of the ocean, where there is more oxygen. But aquatic plants behave differently, they are found closer to the surface because there is more direct sunlight, so there is an increase in photosynthesis. Too much photosynthesis can lead to algal blooms and excessive plant growth.
What are algal blooms?
What are their effect on the ecosystem?
Algal blooms are a rapid increase or accumulation in the population of algae. It is caused by an increase in photosynthesis or an excess intake of nutrients. They can appear in a green color, or a yellow-brownish or red, which usually indicates an HAB. They are usually very harmful for the environment, and can occur in freshwater and marine ecosystems, they can cause several species of organisms to die off. Algal blooms are short lived, and after they die, there is an abundance of dead, decaying algae in the water which consumes too much dissolved oxygen, so there is never enough oxygen for other organisms, and they start dying off in large numbers and the ecosystem falls apart. An HAB is a harmful algal bloom, which is an algal bloom that has poisonous chemicals involved, and can be more destructive of the ecosystem than a regular algal bloom.
Why is temperature important?
Celsius and Fahrenheit Temperature scales
How does temperature affect the solubility of substances?
Regular algal bloom
Solubility is how easily something dissolves in fluids, and temperature brings solids
like salt, iron, calcium, and
other trace elements that are common in water nearer
to their melting point.
The nearer something is to its melting point, the easier it is for it to dissolve into a fluid.
Fuck this project
. N.p.. Web. 1 Apr 2014. <http://en.wikipedia.org/wiki/Algal_bloom>.
Snyder, G.. N.p.. Web. 1 Apr 2014. <http://sciencefairwater.com/physical-water-quality-parameters/water-temperature/water-temperature-effects-on-fish-and-aquatic-life/>.
Bishop, M.. N.p.. Web. 1 Apr 2014. <http://preparatorychemistry.com/Bishop_solubility_temperature.htm>.
Wicker, C.. N.p.. Web. 1 Apr 2014. <http://www.weatherwizkids.com/weather-temperature.htm>.
. N.p.. Web. 1 Apr 2014. <http://abyss.uoregon.edu/~js/glossary/temperature_scale.html>.
Tong, A. n. page. <http://www.picotech.com/applications/temperature.html>.
Fuck this project
This lab shows the effect of temperature on aquatic life
Temperatures effect on water
Why is temperature the most important water quality?
Temperature has an effect on other qualities and a lot of other organisms require the right temperatures for life. It affects the amount of dissolved oxygen in the water, the photosynthesis of aquatic plants, the metabolic rate of organisms, and the sensitivity of organisms to pollution, parasites and disease. Without temperature controlling these characteristics, it could mean major death tolls for many organisms, throwing whole ecosystems off.
By: Jorge, Kyle, and Zane
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