+ houses vs. earthquakes jasmine barrow, eli moraru, nadia bangura, jericho desalegn/ period 1
TRANSCRIPT
+Research
Research shows that the more flexible a structure is it will with stand an earthquake longer. For example Haiti is building more earthquake resistant buildings with more flexible materials. Over recent years many countries are changing how they make earthquake prone structures so there is less damage done. They also discovered that if you give windows space to shake so it will not break as easily. Scientist discovered that if a structure can sway it will be less likely to fall. The research helped our group make our hypothesis which is that the play-dough will last the longest because it is more flexible than our other materials.
+Hypothesis, Independent Variable, and Dependent Variable
The materials in the experiment are plastic Jell-O cups, cardboard and play-dough. The most flexible material will last the longest based on the research. If we change the materials of the structure then the more flexible which is the play-dough so the play-dough will last the longest. Our hypothesis is that the play-dough will last the longest.
Independent Variable: The materials used to make the structures are the independent variables.
Dependent Variable: The dependent variable is how long the structure will stay standing up.
+Procedures
Assemble shake table
Collect materials to make structures
Create structures
Place structure on shake table
Shake the shake table
Record times
Repeat for 3 trials
Do same for the other structures
+ Data Table
Type of Structure
Trail # 1
Trail # 2
Trail # 3
Averages for each Trail
Play dough
1 Shake
19 Shakes
1 Shake
7 Shakes
Card board
1 Shake
4 Shakes
5Shakes
3.33Shakes
Plastic 2 Shakes
3Shakes
2 Shakes
2 Shakes
+Citation
http://www.sciencenewsforkids.org/2007/01/rocking-the-house-3/
http://quake.abag.ca.gov/housing
http://www.npr.org/2011/01/14/132904427/in-hatis-rebuilding-calls-for-stronger-structures
http://sciencemuseum.org.uk/attena/building/building/enviorment/index.asp
+ Analysis (Bar graph)
Trail 1 Trail 2 Trail 30
2
4
6
8
10
12
14
16
18
20
Play-DoughCard boardPlastic
shake
s
+ Analysis
Av-er-
ages
0
1
2
3
4
5
6
7
8
PlaydoughCardboardPlastic
shakes
AAVERAGES
PLAY-DOUGH
CARD BOARD
JELL-O CUP PLLASSTIC
+Conclusion, Part 1
If we change the materials of the structures, then the more flexible structure will hold up the longest. Our groups hypothesis was supported by the data because it held up the longest with an average of 7 shakes. Some changes we would make to our experiment would be to make the weight of all our structures the same. We would do this because the playdough structure kept on sinking in on the shake table. We would also change the shape of the structures and how they connected. We think if we would’ve made the structures connected better that we would have had different results. Some factors that might have affected our results other than the independent variable could be the weight, the type of materials we used, the shape and how they structures were connected.