Density Derby Challenge:

#1-5 to be submitted by each student:

1) Written quality observations of at least 5 demonstration stations (20 points)

2) Answers to day 1 questions, should be at least 5 questions (20 points)

3) Filled test tube with substances in the proper order (1 point each, max 20 points)

4) Scientific explanation of how Galileo’s Thermometer works (20 points)

5) Scientific explanation of how your derby entry will work (20 points, plus this is required to submit an entry object)

#6 One derby entry per table

6) Derby entry results (100 points)

- object either sinks or floats — 70 pts
- object sinks and floats — 80 pts
- object sinks then floats within 50-70 seconds — 90 pts
- object sinks, stays down for 60 seconds (rounded to the nearest whole second) then floats — 100 pts