Results of Impact Studies
by The Comets (Ms. Carter’s class, Pueblo Elementary, Scottsdale Arizona)

Before We Did the Experiment

1) We wondered and worried:

How deep would each rock go?--Taylor
Was the sand going to blow up in our faces when we dropped the rocks?--Sarah
Which rock would do the most damage?--Gina
How high would the flour go when we dropped the rock?--Taylor
How badly would the rocks hurt if they hit our fingers?--Gina

a) If the rock was at 180 cm., then it would make a bigger hole (crater).--Tyler
b) If we drop bigger rocks, they will make a bigger hole in the ground.--Sarah
c) If we drop bigger rocks, they will create bigger ejecta.--Taylor
d) If we drop from higher in the air, they will make bigger ejecta.--Gina

During the Experiment (All students helped explain this):

1) Materials we used:
kitty litter
flour
gravel
sand
rocks
boards (180 cm long)
sticks and leaves (optional)
balloons
plastic containers to hold our “landscapes”
rubber bands (a little at the end)
Newspaper (to protect the floor)
Data sheets (prepared by the teacher)

2) Procedures we used:

1) Made a landscape in the containers with the following layers: sand (bottom),
kittly litter (middle), flour (top)
2) Put sticks in the layers to make it look like a landscape.
3)  Measured the boards and wrote where they were 30 cm., 60 cm., 90 cm., 120 cm., 150 cm., and 180 cm..
4) Measured length and width of our rocks and we named them.
5) Dropped the rocks, from 30, 60, 90, 120, 150 and 180 cm.
6) Measured depth, diameter and ejecta from each rock.

After the Experiment
1) We collected data and graphed it in bar graph form.  We did both individual and and a gouped graph (which added al the numbers for each rock).  Data has already been submitted.
2) We compared the results:
b) Dragon had the biggest diameter (overall)
c) Smegal had the biggest depth (overall)
d) Smegal and Little Mama had the similar depth (overall)
e) Midget and Dragon had the same depth (overall)
f) Dragon and Little Mama had the same ejecta (overall)
g) Midget had the smallest diameter and ejecta (overall)