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Experimental Design
When conducting a lab experiment, you must have variables and controls. Read the following article A pepper part that burns fat, by Stephen Ornes.
What were the independent and dependent variables? What was the control group? Why is it important to have a control group? Write out a proper hypothesis in the "If, And, Then" format.
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Last week we had a discussion about how stopping eating and over exercising can’t help you burn calories. If you don’t eat the only thing you burn is muscle. This relates to the article because in the experiment the participants still ate and actually lost weight. If the participants had only eaten the pills their body would eat itself to death starting with the muscles.
ReplyDelete• The independent variable was dihydrocapsiate (the drug)
• The dependent variable was weight loss.
• The control group was the people that didn’t take the drug.
You need a control group to see if the variable affects the experiment or not.
IF dihydrocapsiate affects weight loss
AND I give it to 33 obese people
THEN they will show significant weight loss
In the dihydrocapsiate experiment, the independent variable was whether the participants received the placebo pill or the pill with dihydrocapsiate in it. The dependent variable was how many pounds the people lost at the end of 4 weeks. The control group was the group of people who took the placebo. It is important to have a control group in order to have something to compare the other data against. A hypothesis for this experiment could be: If participants ingest a pill with dihydrocapsiate in it, and they eat 800 calories a day, then they will burn more fat than those who didn't take the pill. The story related to what we are learning in class because it described a real-life experiment in lots of detail. It made me think about the different parts of an experiment and how one could improve upon the experiment next time.
ReplyDeleteThe independent variable is the amount of dihydrocapsiate being consumed and the dependent variable is the amount of calories being burned. The control group is the placebos pills. It is important to have a control group because it compares the results with the main group. If there were no control group, researchers could not tell if the test subject was proven right or wrong.
ReplyDeleteIf one group of obese people take dihydrocapsiate, and one group of obese people take placebos, then the group of obese people who toke dihydrocapsiate will lose more weight than the group of people who took placebos.
This dihydrocapsiate experiment is probably true.The independent variable is that a group of people got placebo the pill which does not do anything.The dependent variable is the chili experiment because they test it and it work out people really lost weight.My say in this is that it would be better to have chili peppers to lose weight.also if your drinking a pill and it does nothing whats the point of that youll just be swallowing something you dont need.This relates to what we are studing in class because we look at the role of life and what makes your body have energy and what makes you weak.the way i see this article is that theres many possibles ways on how to lose weight we just have to keep experimenting.See what can be changed or not.
ReplyDeleteI think this Dihydrocapsiate experiment is true. Placebo the pill which does not does not do much is the independent variable.The chili experiment is the dependent variable because they do test.And people really did lose weight. It would be better to have chili peppers so you can lose weight. there is no point for you to be taking weight lose pills. this topic relates to our science class because we study on what makes our body keep us up and awake with energy and what doesnt.
ReplyDeleteThis April, many scientists from California made an observation. They noticed that dihydrocapsiate, a chemical similar to the one that makes peppers hot, could help people burn calories. They put it to the test. Their hypothesis was: If dihydrocapsiate helps burn energy, and we form 3 groups of overweight people following the same diet, 1 taking placebos, 1 taking small amounts of dihydrocapsiate, and 1 taking large amounts of dihydrocapsiate, then the one taking the large amount will lose the most weight. They tested this hypothesis, and came up with supportive evidence. The independent variable was the amount of dihydrocapsiate. The dependent variable was weight lost (or gained). The control group was the people who took placebos. These people were important because they showed that the results were significant and not random. The control group shows what is normal so one can see the difference their experiment made. Because of the accuracy of their experiment, we now have a well supported theory that dihydrocapsiate helps one loose weight.
ReplyDeletethe independant variable is the amount of dihydrocapsiate that was consumed. the dependant variable is the amount of calories being burned. the control group was the people taking the placebo pill. it is important to have a control group so you can compare your result to something.
ReplyDeleteif a group of obease people take a placebo pill, and another group of obease people take dihydrocapsiate, then the gruop of poeple who took the placebo will lose less weight the the people who took the dihydrocapsiate.
The dependent variable is the number of calories burned and the independent variable is the amount of dihydrocapsiate pills being consumed. The control group is the group taking the placebos. A control group is necessary because it compares the results with the main group. If there was no control group, the researchers would not be able to tell if the pills had any effect.
ReplyDeleteHypothesis:
If dihydrocapsiate affects the amount of calories burned and one group is put on a specific diet and is given pills containing dihydrocapsiate and a second group goes through the same but is given placebos, the results will show that the people who took the dihydrocapsiate will have lost more weight than the control group.
-Ted A. 7°
We have been learning about chemical reactions.This article is about the chemical reaction of a pepper and how it can burn fat. Scientists from California reported that a chemical from a pepper, dihydrocapsiate, can boost how a body burns energy. Dihydrocapsiate will not be a problem in your body, you won't even know it is there. It is too big to fit into recptors, which means it enters and passes through the body without causing pain.
ReplyDelete