They will be required to answer questions and perform tasks at
each of three or four stations.
Each series of questions will lead up to one final answer which
the last team member must give to the judge on a piece of paper
provided. The purpose of this experiment is to identify an unknown
Example: Each team will be required to determine the volume of
an unknown NaOH solution required to exactly neutralize one half
of a 50.0 ml 0.1 N HCl solution.
||To gain experience in chemical analysis.
||Teams of up to four.
Materials 1: A retort stand, burette, pipette, unknown solution,
indicator, Erlenmeyer flask, standard HCl
Procedure 1: A student must perform a titration against the standard
HCl using the unknown NaOH.
After determining the volume of NaOH needed to reach the end point,
the student writes this and only this, on a piece of paper, jumps
a hurdle and runs to the next station where the next member of
his/her team waits.
Materials 2: Pencil, paper, eraser and the molarity of the HCl
solution from station 1.
Procedure 2: This student must compute the molarity of the NaOH
solution based on the volume used at station one. The student
then long jumps over a water hole and gives the answer to the
next team member.
||Materials 3: Pencil, eraser,
answer from station #2.
Procedure 3: Student must compute the answer to the initial question
which will be provided on a cue card. After obtaining the answer,
the student must toss a soft ball through a hoop before giving
the answer to the judge.
- Team members may cheer on each other, but may not provide assistance
at any of the stations.
- No calculators will be allowed. All calculations will be easily
done by hand
- Points will be awarded on the basis of correct answers and
the fastest time.
- A maximum of 25 points will be given for the answer closest
to the actual one; other teams will be awarded points relative
- A maximum of 25 points will be given to the team with the
fastest time, other teams will be scored relative to this.
- Speed and accuracy are therefore, important in this event.
||Youth Science Foundation Science Olympics