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Chemistry 18 Online
OpenStudy (anonymous):

Did anyone do this for flvs? Our Universe 04: Origin and Expansion of the Universe 1. Compare and contrast your experimental procedures with the Big Bang Theory. 2. How does your balloon represent the Big Bang Theory? What are the shortcomings of the experimental design? 3. How does the model you created help to show that the Steady State Theory is inaccurate? 4. Suggest a way that a scientist could create an even more accurate model of the Big Bang Theory. 5. What will happen to the gravitational force between galaxies as the universe continues to expand?

OpenStudy (anonymous):

i do not believe in the big bang theory (no hate, JESUS SAVES)

OpenStudy (anonymous):

@AloneS ????????? u know?

alones (alones):

GEEZ what is this??

OpenStudy (anonymous):

science lol

OpenStudy (anonymous):

Our Universe 04: Origin and Expansion of the Universe Title: The Expanding Universe Objective: To interpret a model demonstrating the theories of our expanding universe. Hypothesis: when the balloon gets blown up more and more I believe the distances of the “galaxy's” on the balloon will become greater. Materials: 1 un-inflated balloon (when inflated, the balloon should have a round shape and be approximately the size of a soccer ball) Markers About 30 cm (12 inches) of string or yarn Ruler or tape measure Procedures: Note: Read all the instructions for this lab before you begin working! Pre-reading the procedure, will give you a mental picture of what you will be doing and a better understanding the process. 1. Place an un-inflated balloon on a table. The balloon represents the universe.  Use a marker to make small, filled-in circles on the balloon. The circles represent galaxies.  2. Pick four of the circles around the balloon and label these A, B, C, and D. 3. Hypothesize what will happen to the distances between the labeled circles when you blow up the balloon ¼ full, ½ full, and ¾ full. Record your hypotheses in the Hypothesis section of your lab report. 4. Measure the starting distances, in inches or centimeters, between each of the labeled galaxies. Record the measurements in a data chart and include this in the Data section of your lab report.  5. Blow up the balloon about ¼ of the way. Use a piece of string to temporarily tie the balloon. (Do not tie the balloon itself into a knot.) Repeat the measurements between the galaxies. Record your findings in the data table under “Distance: ¼ full.”  6. Untie the string. Repeat the same procedures by blowing up the balloon to ½ and ¾ of its full size. Record the measurements in your data chart. Data: Be sure to include all required measurements in the data chart below. Data Chart Galaxies Distance: Un-Inflated balloon(inches or centimeters) Distance: ¼ full (inches or centimeters) Distance: ½ full (inches or centimeters) Distance: ¾ full (inches or centimeters) A to B  3 ½  5  9  13 A to C  4  4  9  13 ½ A to D  3 ½  5 ½  12  17 ½ B to C  4  4  8 ½  13 B to D  2  2 ½  5  7 ½ C to D  3  3 ½  5 ½  10 ½ Graphing: Once your data chart is complete, use the information to make a plot graph or bar graph of the data points to be included in the laboratory report form. Online graphing software can be found at the following sites: • NCES  • Mr. Nussbaum  • Onlinecharttool Analysis: After reviewing your data and graph, how do the density and distribution of your “galaxies” change as the balloon expands? Reflection Quesions: 1. Compare and contrast your experimental procedures with the Big Bang Theory. 2. How does your balloon represent the Big Bang Theory? What are the shortcomings of the experimental design? 3. How does the model you created help to show that the Steady State Theory is inaccurate? 4. Suggest a way that a scientist could create an even more accurate model of the Big Bang Theory. 5. What will happen to the gravitational force between galaxies as the universe continues to expand?

alones (alones):

yeah but i don't understand ur question xD

OpenStudy (anonymous):

lol i filled in the graph my self believe it or not

OpenStudy (anonymous):

lol yeah i dont really eathier

alones (alones):

eh sorry :0 AAAAAAAA

OpenStudy (anonymous):

but its asking me about the big bang theory and i thought the big bang theory was supposedly how earth was made but it talks about it expanding? and how is the balloon the big bang?

OpenStudy (anonymous):

just thought i would see if you knew but thats ok if you dont :)

alones (alones):

still i can't hep u with this :)

OpenStudy (anonymous):

oh well i try guess i will have to read about something that is like soooo dumb with no real scientific proof at all :)

OpenStudy (anonymous):

i tried*

alones (alones):

:) i see just tag

OpenStudy (anonymous):

thnks i guess @AloneS :)

alones (alones):

ummm really ?? i didn't answer ur question thx,thx ;)

OpenStudy (anonymous):

thanks for listening? i guess than lol

alones (alones):

okayii :/ i suck at chemistry

OpenStudy (anonymous):

welll more like reading but oh well :/

alones (alones):

yeah look like

OpenStudy (anonymous):

@iwik with this you really just have to do the work and the experiment there really is no answer i can just give, sorry

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