Nutrition Calorie Lab Essay Sample

Purpose: How many Calories are in a peanut? How does it compare to other nuts?

Materials: 250 milliliter beaker. pealing base. paper cartridge holder. balance. graduated cylinder. thermometer. aluminium foil. peanut. 2 other types of nuts. igniter.

Background information: We measure the energy that nutrients give us in footings of Calories. A Calorie is the sum of energy required to raise 1000 gms ( 1 kilogram ) of H2O one grade Celsius. Our organic structures burn up Calories through growing and exercising. When you take in more Kilogram calories than you use. the extra Kilogram calories are stored in your organic structure as fat. This leads to an addition in one’s weight.

Hypothesis: __________________________________________________

Procedure: 1 ) Weigh your shell-less peanut on the balance to the nearest ten percent of a gm. Record the weight in the informations tabular array. 2 ) Using the calibrated cylinder. step out 100 milliliters ( 100 g ) of H2O.

3 ) Carefully pour the H2O into the beaker and record the temperature of the H2O ( grades Celsius ) in the informations tabular array. Leave the thermometer in the beaker. 4 ) Concept a simple calorimeter as illustrated below:

5 ) Use a paper cartridge holder to do a base that will keep the peanut above the base of the ring base.

6 ) Make a shield around the peanut with aluminium foil. This will assist to cut down heat loss to the environing environment. You will necessitate to do some little holes in the foil to let O in to prolong the fire. 7 ) Light the peanut on fire and lower the can so that it is instantly above the fire. 8 ) When the fire has consumed the peanut. find the temperature of the H2O ( grades Celsius ) and record this in the informations tabular array.

Datas:
|Type of nut |Mass ( g ) |Beginning Temperature |Final Temperature |Temperature addition | | | | | | | | | | | | | | | | | | |

Calculations: Record the undermentioned computations for each type on nut. ( Do the computations on a separate piece of paper and so staple it after the last page of this handout. )

1 ) Find the figure of Kilogram calories contained in the each nut by making the followers:

Kilogram calories = temperature addition
10
2 ) Determine the figure of Calories per gm by spliting the mass of the peanut:

Kilogram calories per gm = Kilogram calories

Mass of nut

|Type of nut |Calories |Calories per gm | | | | | | | | | | | | |

Graph: Kilogram calories vs. Nut Calories per gm vs. Nut

Decision: _______________________________________________

Postlab Questions:

1 ) Would it be a good thought to hold a diet that consisted merely of peanuts? Explain. 2 ) Could this lab be used to happen the figure of Calories in any type of nutrient? Explain. 3 ) Why are “calories per gram” of import when comparing the nutritionary value of different types of nuts?