Physical Science/Chemistry


Food Science

(section: 2 / paragraph: a / line: 5)

2015-11-12 13:27 May students bring pipettes to measure the drops of lemon juice/vinegar? The rules do not specifically require event supervisors to provide them and if the student's prior research was measured using drops, they will need them.

No, the students can not bring pipettes. The event supervisor may provide them, but the students should not plan on that.

(section: 3 / paragraph: b / sub-paragraph: ii / line: 3)

2015-11-12 13:29 Can students bring something to "fasten" the cheesecloth over the beaker such as a rubber band or will that be provided by the event supervisor?

Students may only bring what is listed in the rules. All other materials should be provided by the event supervisor.

(section: 3 / paragraph: b / sub-paragraph: iii / line: 4)

2015-11-12 13:57 The rule says using heavy cream. We only found heavy whipping cream in supermarkets. Can we use heavy whipping cream for our experiments?

Yes, Heavy Cream and Heavy whipping cream are similar differing with the percentage of fat. Heavy cream is about 36% and heavy whipping cream is about 30% milk fat. The students should practice with different types of cream because you don't know what type of cream the event supervisor will provide for this Lab.

Crime Busters


Crave The Wave

Wind Power - Div B

(section: 3 / paragraph: b / line: 1)

2015-11-12 14:33 Is the CD that the blades are mounted to only held on to the generator by the detent balls on a CD player or can extra support be provided such as double sided adhesive tape to strengthen the joint?

Yes, as long as the tape is easily removable and does not impact other subsequent teams' testing.

(section: 4 / paragraph: l / sub-paragraph: ii / line: 1)

2015-11-12 14:35 Rules state that "Power generator general questions...."Does this refer to the general question of how electrical power is generated in each of these types of power plants or specifically to the generator itself?

Anything related to power generators in general is a valid question, which could include aspects of the power plants.

Air Trajectory

(section: 3. / paragraph: f / line: 1)

2015-11-12 13:04 Team must provide unmodified light weight plastic or foam golf balls to be used as projectiles. Are practice plastic golf ball with holes on the side consider "Unmodified"?

Yes, plastic golf balls purchased with holes in them are considered unmodified and are allowed.