Is it true?
Great advice from NYT: to really learn, Quit Studying and Take a Test
This article is about learning. It suggest that quiz taking is more affective in learning material than two other methods. (1.reading notes or book, 2. making concept map) It shows that by studying the material and quizzing on it you maintain it better. In the article it compares it to a man trying to get stronger he will only get the results he's looking for if he applies him self by working out it would do no good if the instructor just teaches him how and tells him to do it but he don't apply yourself.
I think this is true in a way meanwhile I do not agree on this method of teaching. You may be studying so that you don't fail the quiz or test. And You may be retaining more information that way however, I think this would be to stressful on a student. They would study and study and never get a break. Eventually the students will get tired and to stressed out to even worry bout the quiz/test. Therefore, them not studying or doing any work at all. The end result would be no learning because the student feels over worked. But this is only my opinion on if test taking is more effective than two other teaching methods.
Wednesday, January 26, 2011
Sunday, January 9, 2011
Tuesday, December 14, 2010
Sunday, December 12, 2010
Enzyme lab
Works of Enzymes
Introduction/Purpose-
The purpose of this lab is to see the rate of enzymes and how they react with different temperatures and pH. balances in the tummy.
Materials-
Peroxide
pH. balance solution
controlled temperature locations(ice, warm water, and room temperature)
Yeast
testing tubes
the measuring thing that connects to the mac
Data-
There are graphs
Analyzing Data/Conclusion-
I learned that rate of reaction is higher with more enzymes present because the energy is being reduced for the reactants to react therefore making it more effective with more enzymes. I also learned that as temperature rises the activity of an enzyme increases.The lower pH. balance has a grater effect in the tummy because it binds better with its substrate than a higher pH. balance.
Introduction/Purpose-
The purpose of this lab is to see the rate of enzymes and how they react with different temperatures and pH. balances in the tummy.
Materials-
Peroxide
pH. balance solution
controlled temperature locations(ice, warm water, and room temperature)
Yeast
testing tubes
the measuring thing that connects to the mac
Data-
There are graphs
45 drops had the greatest reaction. This is because the more drops you put in (which the drops are representing enzymes) lowers the amount of energy that is required for the reactants to react.
This graph shows that when being at a warm temperature it had more of an effect. This graph is showing that as temperature rises activity of enzymes increase. This is because in warm temperatures enzymes have more an effective collision with substrate.
This graph shows that a lower pH. balance has a greater effect. This is happened because we were experimenting on the effects that would happen in the tummy and in the tummy a lower pH. balance reacts better.
Analyzing Data/Conclusion-
I learned that rate of reaction is higher with more enzymes present because the energy is being reduced for the reactants to react therefore making it more effective with more enzymes. I also learned that as temperature rises the activity of an enzyme increases.The lower pH. balance has a grater effect in the tummy because it binds better with its substrate than a higher pH. balance.
Wednesday, December 8, 2010
Photosynthesis
Photosynthesis Lab
Purpose-
To see the effects of photosynthesis and how photosynthesis works.
Materials-
During this lab you will fill up half the beaker with water. After doing so put some bromothymol blue as much as to get the water to one solid color. You will repeat this but one time you will add a snail, anther time a plant and after that elodea with a snail and elodea with a plant.Wait about 15 min. for each result. Record your observations. After doing that find a dark corner to put the beaker with the bromotymol blue, snail, elodea and leave there for 3 hours. Then record your results. And clean everything up dispose of materials properly if needed.
Results/Data-
Purpose-
To see the effects of photosynthesis and how photosynthesis works.
Materials-
- A lot of water
- aquarium snail or snails
- bromothymol
- elodea
- aquarium plant or plants
- beaker
During this lab you will fill up half the beaker with water. After doing so put some bromothymol blue as much as to get the water to one solid color. You will repeat this but one time you will add a snail, anther time a plant and after that elodea with a snail and elodea with a plant.Wait about 15 min. for each result. Record your observations. After doing that find a dark corner to put the beaker with the bromotymol blue, snail, elodea and leave there for 3 hours. Then record your results. And clean everything up dispose of materials properly if needed.
Results/Data-
- Water + bromothymol blue = blue green This happened because carbon dioxide in water produces carbonic acid.
- Water + bromothymol blue+ snail = yellow This happened because BTB is a blue-green liquid which changes to yellow color in acid and back to blue-green when returned to a neutral pH. So its pH. is abnormal.
- Water + bromothymol blue+ plant = blue green in light This happened because BTB is a blue-green liquid when it is at its neutral pH and it is.
Conclusion-
We see the way the effects of photosynthesis and how photosynthesis works in this lab by seeing how it absorbs sunlight with the light from the room and the plant or snail moving around is air and the water with BTB is the inside of the plant. When you set the beaker in the dark acid is created (turns yellow) because the plant need sunlight for photosynthesis and without it the plant is dead.
Sunday, November 28, 2010
Black Widow vs. Brown Recluse Spider
Black widow vs. Brown recluse spider
The black widow and the brown recluse are the two most common venomous spiders in the U.S. They are usually found in warm climites like the southern states in dark places like an attic or a garage
Black Widow
The black widows protein toxic affect the nerve system. Some people reactions are more server than others. Most of the time it is treated with narcotics and antivenin.
The brown recluse spider contains a venom with many enzymes which makes it really poisonous. It destroys the cell membrane uncovering the tissue and makes nasty looking wounds and can cause a hole in the flesh known as volcano lesion. The best thing to do if bitten by this spider go seek medical care.
(P.S I got chills through out all this research especially seeing some of the pictures)
The black widow and the brown recluse are the two most common venomous spiders in the U.S. They are usually found in warm climites like the southern states in dark places like an attic or a garage
Black Widow
- Venom affects the nerve system
- Some people highly affected others not it depends
- Symptoms usually start with 20-60 minutes after the bite.
- Symptoms are muscle cramps, abdominal pain, weakness, and tremor may occur. If you are highly affected are nausea, vomiting, faintness, dizziness, chest pain, and trouble breathing.
- five different specious know in the U.S
- half an inch long body
- Southern- has a shiny belly with an hourglass on it
- Northern-line of red dots on its back (it can have red legs)(kinda creepy)
- nocturnal like vampires which their bites do look like little tiny vampire bites
- only female attack human when being bothered
- minor bites recommend a hot bath because all you may have is muscle spasm
- severe bites need medical care which may be treated with narcotics and antivenin
- venom more toxic than rattle snake
- poison affects the cells and tissue
- symptoms start to appear 2-8 hours after venom has been injected, severe itching, nausea, vomiting, fever, and muscle pain (myalgias).
- legs one inch long
- violin pattern on part where legs are attached
- all bites are recommended to be seen by a doctor
- attack when they feel threatened (so would I)
- six eyes which we can't see with our eyes
The black widows protein toxic affect the nerve system. Some people reactions are more server than others. Most of the time it is treated with narcotics and antivenin.
The brown recluse spider contains a venom with many enzymes which makes it really poisonous. It destroys the cell membrane uncovering the tissue and makes nasty looking wounds and can cause a hole in the flesh known as volcano lesion. The best thing to do if bitten by this spider go seek medical care.
(P.S I got chills through out all this research especially seeing some of the pictures)
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