Food Science

Food Science

admin Tue, 2008-08-12 08:49

"Students will ... build a simple calorimeter to determine the energy content of a solid foodstuff." Must the foodstuff provided for calorimetry be a grain product or can it be any solid food item?

"Students will ... build a simple calorimeter to determine the energy content of a solid foodstuff." Must the foodstuff provided for calorimetry be a grain product or can it be any solid food item?

ceann Tue, 2017-03-07 18:12
It can be any solid food item per rule 3.b. However, it should be noted that the foodstuff item itself should not require refrigeration or any kind of preservation from the item "ripening" or potentially "going bad" in a certain period of time. Therefore, items which should be considered should be packaged goods with a long shelf life (ie. potato chips, cheese puffs, crackers, etc.)

Does the thermometer used for the calorimetry calculations, in its assembled position, have to fit within the 30 cm X 30 cm X 30 cm box?

Does the thermometer used for the calorimetry calculations, in its assembled position, have to fit within the 30 cm X 30 cm X 30 cm box?

ceann Sun, 2017-03-12 19:22
No.

How are the calorimeters to be graded and used for the score? Does it depend on how efficient the device or how it is set up and the correct calculation?

How are the calorimeters to be graded and used for the score? Does it depend on how efficient the device or how it is set up and the correct calculation?

ceann Tue, 2017-03-07 18:15
The calorimeters themselves are not graded. They are used to determine the caloric content of the food to be burned

Is there a formula to be used to determine the scoring of the calorimeter portion?

Is there a formula to be used to determine the scoring of the calorimeter portion?

ceann Sun, 2017-03-12 19:33
No. That is up to the event supervisor. It is 15% of the final grade. Generally, it is based on accuracy and the math involved in calculating the joules/gram of the food substance.

Part 1 is written to appear that questions can be asked relating the "...Chemistry of Food AND food grains." Does this indicate that the test should be focused on grains, but that any questions within the broad subject of Food Chemistry are within...

Part 1 is written to appear that questions can be asked relating the "...Chemistry of Food AND food grains." Does this indicate that the test should be focused on grains, but that any questions within the broad subject of Food Chemistry are within...

ceann Sun, 2017-03-12 19:45
While the grains are the focus, other questions in the area of food science are applicable. Pleas read 3.a. part 1. Also, 4. Sample activities.

What does "any seed" mean?

What does "any seed" mean?

admin Thu, 2016-11-03 17:46

Definition of seed. : a small object produced by a plant from which a new plant can grow This requires the knowledge that NO part of the fruit may be used because over time it can become rotten and students should not be exposed or working with this part in any capacity. Therefore, it is truly the smallest component from which a new plant can grow.

Would a digital thermometer be allowed? Technically, a digital thermometer wouldn't fulfill the "non-electric" requirement because of the battery, but I wonder if that's the intent of this rule.

Would a digital thermometer be allowed? Technically, a digital thermometer wouldn't fulfill the "non-electric" requirement because of the battery, but I wonder if that's the intent of this rule.

ceann Sun, 2017-03-12 19:24
The requirement is non-mercury. There is no requirement that the thermometer not be electric. The Calorimeter can not be electric. The thermometer is not a part of the calorimeter. Probes or digital thermometers are fine as long as it does not need to be 'plugged into' a 110v source.