Preview

Food Energy Lab

Good Essays
Open Document
Open Document
1077 Words
Grammar
Grammar
Plagiarism
Plagiarism
Writing
Writing
Score
Score
Food Energy Lab
Energy in food lab report
Aim: How much energy there is in food.

Hypothesis: If I work out how much the water temperature has risen by burning food underneath water, the mass of the water and the mass of food I can work out how much energy was in the food.

Introduction: This experiment is about how much energy there is in food. There are a few different types of energy, the one we are looking at is chemical energy. Some other types of energy are: thermal energy which is heat, magnetic energy which is the energy that makes magnets stick to each other or push away from each other, electric energy which makes stuff like T. V’s, phones and computers work, sound energy which lets us hear and light/radiant energy which makes plants grow and lights up
…show more content…
Method: 1. Use the measuring cylinder to measure 10cm3 of water and then pour the water into the test tube.
2. Clamp the test tube with the water in it to the retort stand.
3. Measure the water temperature with the thermometer and record the temperature in the results table.
4. Get a piece of food and measure it with the weight measurer and record the weight in the results table.
5. Place the Bunsen burner on a heatproof mat, turn the collar of the Bunsen burner so the air hole is closed and then light the Bunsen burner with the matches (don’t put the Bunsen burner next to the retort stand otherwise the water will heat up from the Bunsen burner which would mess up your results).
6. Pick up the food you measured with the tongs, turn the flame on to the blue flame and hold the piece of food in the flame until it catches alight.
7. As soon as the piece of food catches alight put the piece of food under the test tube with the water underneath it. Try to get as much heat as possible to go into the water by keeping the flame on the piece of food right underneath

You May Also Find These Documents Helpful

  • Satisfactory Essays

    Aim: To test the energy efficiency of a tiny teddy in kilojoules by burning the tiny teddy beneath a test tube of water. The water temperature is then measured to see how efficient the transformation of energy is. It is important to see how efficient the transformation is as it will give an indication to whether burning tiny teddies would be an efficient source of energy.…

    • 863 Words
    • 3 Pages
    Satisfactory Essays
  • Satisfactory Essays

    Alum Ap Chemistry Lab

    • 480 Words
    • 2 Pages

    6. Set up the Bunsen burner, adjust ring clamp to 1 cm above the burner.…

    • 480 Words
    • 2 Pages
    Satisfactory Essays
  • Good Essays

    In this experiment, the percent composition and empirical formula of silver oxide will be determined.…

    • 582 Words
    • 3 Pages
    Good Essays
  • Satisfactory Essays

    Spirit Lamp Lab Report

    • 231 Words
    • 1 Page

    4) Then, measure out 100 cm3 of distilled water using a measuring cylinder. 5) Add this water into the copper beaker of the calorimeter. 6) Record the initial temperature of the water. 7) Insulate the calorimeter by wrapping a fine layer of cotton or wool around it.…

    • 231 Words
    • 1 Page
    Satisfactory Essays
  • Satisfactory Essays

    Chem Lab

    • 279 Words
    • 2 Pages

    Name: |Date:| Exp 10: Caloric Content of Food|| Your Data: |First Item|Second Item|Third Item| What Food are you using|||| |||| Mass of empty beaker|||| Mass of beaker and water|||| Net Mass of the water|||| |||| Initial mass of food and holder|||| Final mass of burnt food and holder|||| Net Mass of the burnt food|||| |||| Initial temp of the water|||| Final temp of the water|||| ∆ T in C (change in temperature)|||| Calculations: Show your numbers in the following calculation equations. First Item_________________ Heat (q) gained by the water ____J q = ΔT x mass of the water x (4.184 J/g˚C ) Where ΔT =…

    • 279 Words
    • 2 Pages
    Satisfactory Essays
  • Satisfactory Essays

    Saline solution lab

    • 289 Words
    • 2 Pages

    3. Set the evap. dish on the ring clamp and start the burner then find the perfect flame.…

    • 289 Words
    • 2 Pages
    Satisfactory Essays
  • Good Essays

    Caloric Food Content Lab

    • 704 Words
    • 3 Pages

    First, use a digital scale to determine the empty weight of the 100ml beaker. The, you are going to fill the beaker half way with water (approximately 50ml) and weigh it again. Take the water and beaker weight minus the empty beaker weight is the net weight of water used for the experiment, and record it. Take a piece of aluminum foil and place on the table top to catch any spills, and it also can be used to reflect heat upward. Set the burner stand over the aluminum foil and place the beaker of water on top of the burner stand. Measure and record the initial temperature of water. Marshmallow: Determine the mass of the marshmallow and an empty fork. Take the marshmallow on the fork and light it using a candle. Once the marshmallow is lit and burning, hold it under the beaker of water while stirring the water with the thermometer. When the marshmallow is completely burnt, weigh the fork with the marshmallow remnants and record. Subtract the weight of the empty for to obtain the weight of the unburned marshmallow residue. Record the temperature of the water, which is the final temperature. Peanut or Walnut: It may take a while to keep them lit, so you made to move them around in the flame to get them burning. When it is well lit and burning, immediately hold the peanut under the beaker of water and occasionally stir the water with the thermometer. When the walnut is peanut or walnut is almost completely burned and the flame has been extinguished, record the final temperature of the water and determine the weight of the nut residue and record. Repeat this step using the other sample.…

    • 704 Words
    • 3 Pages
    Good Essays
  • Good Essays

    Gainless Steel Lab

    • 685 Words
    • 3 Pages

    6. Measure and record the temperature of the water in the plastic-foam cup and of the water in the boiling bath. This temperature should be recorded to one decimal place.…

    • 685 Words
    • 3 Pages
    Good Essays
  • Powerful Essays

    Bags of Reactions Lab

    • 712 Words
    • 3 Pages

    9. Measure 25mL of water in a graduated cylinder. Add 10 drops of Universal Indicator to the water.…

    • 712 Words
    • 3 Pages
    Powerful Essays
  • Good Essays

    Cold Pack Essay

    • 377 Words
    • 2 Pages

    In this experiment, a device that measures heat, a calorimeter, will be used. For this experiment, a calorimeter will be made with two nested Styrofoam cups, cardboard to cover the top as a lid, a thermometer, as well as about 25mL of water and about 7g of NH4¬NO3. The temperature of the solution will be closely monitored with the thermometer.…

    • 377 Words
    • 2 Pages
    Good Essays
  • Good Essays

    Stop watch: To check the time it took for the metal carbonate to turn the limewater milky.…

    • 1178 Words
    • 5 Pages
    Good Essays
  • Good Essays

    Basic Lab Measurements

    • 465 Words
    • 2 Pages

    Release just enough gas so the flame takes the shape of a small, blue cone.…

    • 465 Words
    • 2 Pages
    Good Essays
  • Good Essays

    This is known as specific heat capacity; it measures the amount of energy needed to raise the temperature of that particular substance by 1 degree Celsius. Specific heat capacity was first discovered in the 18th century by a Scottish scientist by the name of Joseph Black who noticed that different substances of equal masses required distinctive amounts of heat to raise them to similar temperature intervals (Encyclopædia Britannica 2014). The specific heat capacity of water is 4.184 J/g°C. Energy is most commonly measured joules (J) or kilojoules (kJ) during the study of heat transfer between two substances (Tuckerman n.d.); however, there is another measurement for energy which is used to measure the amount of energy in food, and this is referred to as food calories. Food calories are equal to 1000 heat calories and 1 heat calorie is equal to 4.184 joules (Calories in Food – A Factor in Weight Maintenance and Weight Loss n.d.). Consequently, it can be seen that the specific heat of a substance can also be measured in calories. Therefore, the specific heat capacity of water can also be written as 1 cal/g°C. In this lab, the calculations were done using food calories and heat calories in order to determine the caloric content of one marshmallow per…

    • 774 Words
    • 4 Pages
    Good Essays
  • Satisfactory Essays

    food prac

    • 265 Words
    • 2 Pages

    2. I don’t think that all the energy from the burning food went into heating the water. Some of it also heated the test tube and the air around it. Not all of the energy went into the heat; also some went into the light of the fire.…

    • 265 Words
    • 2 Pages
    Satisfactory Essays
  • Good Essays

    Phase Change Lab Report

    • 747 Words
    • 6 Pages

    Abstract: The purpose of this experiment is to study the energy changes associated with the phase changes of water. In this experiment we know the water is gaining energy so we know the heat is going to be positive and we can use the equation MCΔT to find the energy change. The specific heat will be 1 and we just have to measure the water to find the mass and take the temperature before and after we start to find the energy change.…

    • 747 Words
    • 6 Pages
    Good Essays