Chemistry Reflection
In the video Bill Nye: 100 greatest discoveries: Chemistry 1/3 Bill, The speaker, talked about 3 of the greatest discoveries that helped push man-kind in the direction of understanding chemistry and what makes us and the objects around us up. One of the greatest discoveries was of oxygen itself. It proved that there were gasses all around us. One that went along with this was the discovery that everything was not just a single atom, as thought before, but many molecules. This made it possible to believe that combining them was in the human race's grasp. But it was still nothing more then a possibility. Until a scientist left to chemicals out by accident and when the chemicals where pulled out they had formed crystals that were familiar to him. Both ingredients that created the crystals were inorganic, meaning they came from not living things. He studied the crystals and realized it was a substance that he had created, or found once before inside the kidney of animals. He was the first to show that it was possible to make organic material out of inorganic things. Another intelligent man created a chart that could be used to categorize the molecules and show what they could and could not combine with. He did this with all the molecules but one. Benzene. No one could figure out how to draw or the chemical structure of this Molecule. Until a man fell asleep thinking of a solution to this problem. He dreamed of a snake, eating his own tale. He awoke and figured it out. This molecule actually looped. Later it was confirmed.

Moving Man

PART A: DISTANCE and DISPLACEMENT

1. Making Observations about Distance:

A. What number and unit are written directly under the moving man? Number: 0 Unit: Meters

B. In the table below record the distances requested in meters: DISTANCE FROM Walking Man (reference point) to…. The House The Wall The tree

8 Meters 10 or -10 Meters -8 Meters

1. In the table below record the displacements requested in meters. Use “-“ and “+” to indicate direction from the reference point (Be sure to also include an amount and a unit.)

DISPLACEMENT FROM Walking Man (reference point) to…. The House The Wall The tree

+8 meters 2 meters -12 meters

What is the difference between an object’s DISTANCE and its DISPLACEMENT?

Distance is the how far an object has moved from a starting point. Displacement is how far out of place an object is. Therefore and objects may go a certain distance but come back to where they started therefore making it in no way out of place. If and object goes and does not come back to its original place that is its displacement.

PROCESSING THE DATA (Part A)

1. Describe the difference between the two lines on your graph made in Steps 4 and 5. Explain why the lines are different.

Answer: The lines were made different in the aspect that they first graph was for us to test the sensor and the second to test our skills to perceive if we can mimic something.

2. How would the graph change if you walked toward the Motion Detector rather than away from it? Test your answer.

Answer: It would spike lower due to the fact that moving away makes it rise. It did spike lower as predicted.

3. What did you have to do to match the graph you were given in Step 7?

Answer: We stopped for five seconds, walked backwards, stopped, walked backwards, and stopped once more.

PROCESSING THE DATA (Part B)

4. Describe the difference between the two lines on the graph made in Steps 10 and 11. Explain why the lines are different.

Answer: It was different because we had no control on matching the velocity. It was impossible to match in our opinion.

5. What is the definition of velocity?

Answer: Speed of motion, or action.

6. What did you have to do to match the graph you were given in Step 13? How well does your graph match the given graph?

Answer: We had to hold a constant speed to get a result close to what we were suppose to get.

PROCESSING THE DATA (Part C)

8. How does the acceleration vs. time graph differ from the other two graphs?

Answer: Acceleration differs in the fact that it doesn't matter where you are or what position you are in but how fast you are going.

9. What is acceleration?

Answer: Acceleration is the process of an object picking up speed as it travels over ground.

Graphing Your Motion

PROCESSING THE DATA (Part A)

1. Describe the difference between the two lines on your graph made in Steps 4 and 5. Explain why the lines are different.

Answer: The lines were made different in the aspect that they first graph was for us to test the sensor and the second to test our skills to perceive if we can mimic something.

2. How would the graph change if you walked toward the Motion Detector rather than away from it? Test your answer.

Answer: It would spike lower due to the fact that moving away makes it rise. It did spike lower as predicted.

3. What did you have to do to match the graph you were given in Step 7?

Answer: We stopped for five seconds, walked backwards, stopped, walked backwards, and stopped once more.

PROCESSING THE DATA (Part B)

4. Describe the difference between the two lines on the graph made in Steps 10 and 11. Explain why the lines are different.

Answer: It was different because we had no control on matching the velocity. It was impossible to match in our opinion.

5. What is the definition of velocity?

Answer: Speed of motion, or action.

6. What did you have to do to match the graph you were given in Step 13? How well does your graph match the given graph?

Answer: We had to hold a constant speed to get a result close to what we were suppose to get.

PROCESSING THE DATA (Part C)

8. How does the acceleration vs. time graph differ from the other two graphs?

Answer: Acceleration differs in the fact that it doesn't matter where you are or what position you are in but how fast you are going.

9. What is acceleration?

Answer: Acceleration is the process of an object picking up speed as it travels over ground.

Women's Brain Questions.

WOMEN'S BRAINS

by Stephen J. Gould in "The Panda's Thumb" 1980 (pp 152-159)

DISCUSSION QUESTIONS

1. What is the general point that Gould is presenting?

The point Gould is presenting is the size of a woman’s brain is less than that of a man’s, and if it has any correlation with height.

2. What is the general evidence on which that conclusion is based?

In general, women’s brains weighed less than men’s

3. What is the gender of all the researchers producing those data and conclusions?

All of the researchers were men.

4. What weaknesses or problems with those data and their interpretation does Gould point out?

Gould pointed out that women have smaller bodies, compared to men.

5. a) Name the one woman anthropologist mentioned who studied the subject of this essay. b) What did she find after proper correction of Broca's data? c) What were her conclusions from that finding?

a) Maria Montessori

b) She claimed women had slightly large brains than men.

c) Women were intellectually superior, but men had prevailed herefore by dint of physical force.

6. What conclusion does Gould reach about the central issue?

He believes Broca’s data is sound, but his interpretation of the matter was ill hearted.

7. Make a general statement about the role of bias and assumptions in the collecting, processing, and interpretation of data in scientific studies.

No one wants to be told they are worse than someone else or wrong. Our brains won’t let us push aside the jealousy.

8. What other kinds of bias can you think of that might influence observations and interpretations in science?

At the time, women were thought to be less superior to men. Also, as we’ve just seen sexism, racism could also be a huge problem. Which goes along with my statement, “No one wants to be told they’re worse than someone else, or wrong.”

9. Describe your initial feelings about the first 3 pages.

I felt at the time it was appropriate because Women were thought to surly be less superior to men

10. Describe your feeling after finishing the entire article.

It felt amazingly dumb that we were not past the point of thinking women were less superior than men.