burning pringles experiment

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Lab Answers: Energy from Burning Food

• Lab Answers: Energy from Burning…

If the change in temperature is greater when the water is heated with the use of the fire caught by the food substance, then the energy content in the food substance is higher because the heat energy is greater, since the heat energy is absorbed by the water when the fire is kept under the test tube containing water.

The formula indicates that if the change in temperature is greater when the mass of the substances and the volume of water are constant, then the heat energy is higher.

The conclusion drawn by my hypothesis is:

• Measuring Cylinder
• Laboratory Thermometer
• Needle with Handle
• Scalpel (for cutting the substances into exactly 0.5 grams)
• Test tube holder
• The following substances are the 5 different food items that are used to conduct the experiment, the substances used are:

i.      Biscuit

ii.      Koko Crunch

iii.      Cheetos

iv.      Peanut

v.      Candle nut

• Independent Variable: Heat energy of the food substance used.
• Dependent Variable: Temperature change in the water/Amount of energy absorbed.
• Controlled Variable: Amount of water, Temperature of surroundings, Type of needle used, Temperature of water.

Manipulation

• Independent Variable: As we vary the food items that we use, their heat energy/ they themselves become the independent variable.
• Dependent Variable: The change in temperature/ Heat energy absorbed is varied as the heat energy of the substance is varied.
• Controlled Variable: The temperature is not varied in any case or does not depend on anything during this experiment, the amount of water equals 20ml in each trial of an experiment for each food substance.
• Measure 20ml water in the measuring cylinder and pour it into the test tube.
• Place the test tube in the holder and lock it tight.
• If the food substance measures 0.5 grams on the electrical balance, then use the substance, otherwise use the scalpel to divide it into smaller pieces and make sure it measures exactly 0.5 grams.
• Measure the initial temperature of the water using the thermometer
• Poke through a food substance measuring 0.5 grams using the needle with the handle.
• Turn on fire on the burner.
• Set the food substance on the needle to fire on the burner.
• Once the food substance starts to burn, place it under the test tube so the water inside it can absorb heat.
• Measure the temperature change in the water using the thermometer.
• Measure the energy content in the food item by using the following formula:

Average Results

Discussion of results.

The least energy as the graph shows is in the Cereal (Koko Crunch). It contains about 1.2 kJ of Average Energy. Candlenut contains the highest amount of energy in the 5 items used during the experiment possessing energy of approximately 8.6kJ.

The trials of the Biscuit show increasing energy from T1 to T3, causing the Average Energy to be higher than the energy obtained in T1 and T2 but lesser than T3. The results of Candlenut show a similar pattern and Peanuts have an opposite pattern.

The results of Cheetos show a pattern of results being T1 (Least) – T2 (Highest) – T3 (Lesser than Highest and Higher than Least). The Average Energy in this case is just a bit higher than the T3. The Koko Crunch shows the opposite pattern and therefore the Average Energy observed is higher than T3.

The trials of Biscuit and Peanut show high variation, this shows the inaccuracy in the results that can be explained by evaluating the method used.

My results completely agree with my hypothesis that when the temperature change is greater, the energy content is higher.  My hypothesis states:

If compared to my results, I can vouchsafe that my hypothesis agrees with my results.

The experiment was done with the best method possible in the lab with the provided equipment. The accuracy could be increased by:

• Use a calorimeter to insulate the test tube to prevent loss of heat energy.
• Use a digital thermometer for accurate readings of temperature.
• Prevent the carbon coating that is formed on the test tube when a substance is burnt as it forms insulation.
• Try to have a handle made out of wood for the needle as metal conducts heat.
• Conduct more trials.
• Turn off the A/C and perform the experiment at room temperature.
• Use exactly 0.5 grams of food substances. Prevent even the minute errors.

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12 Comments

Lovely, just lovely. A true champion in the field of science.

what is the name of this experiment?

Extremely useful!!!

AMAZING EXPERIMENT! schoolwork helper, thank you for helping me understand calories

what is left at the end of the experiment when the foods are completely burnt?

you used 5.839 as your average for the peanut, it should be 5.389. 🙂

Calculation of energy content of peanut

What formula do you use to calculate the amount of Joules?

Energy released from food ( gram) = (Mass of water x temp rise x 4.2g) / Mass of food sample

Really great .. thank you so much

Thanks a lot this helped me with my plan and design lab.Thanks much really appreciate it 😊😊

Thanks a lot!! I really appreciate it!!!! It helped me with my homework and to be frank, it fulfilled my requirements!! Please keep it up!! 😉

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Craig Beals travels the country with FLIR sharing the joys of science

The Beals Science Jeep Cannon shoots bowling balls more than two miles

Waiting for the ball to drop and set off hundreds of mouse traps to simulate a reaction.

Craig asks "Can Technology (re)Humanize Us?" in his TEDx talk

5 Awesome Hydrogen Explosions

Hydrogen is one of my favorite elements. It is the simplest of elements, having only one proton and one electron (in most cases) but what it lacks in mass it more than makes up for in shock and awe!

Hydrogen is highly attracted to many of the elements on the periodic table but one of its favorite elements to attach with is Oxygen . When Hydrogen gas and Oxygen gas combine, with the help of a little energy (flame or spark), the two elements rearrange themselves and combine in a synthesis combustion reaction - making Water (H2O). In each of the hydrogen explosion demonstrations in the video, the reaction is creating water and releasing heat and light as the water forms.

Hydrogen Combustion Reaction

The hydrogen combustion reaction (often referred to as "burning"), occurs when 2 molecules of Hydrogen gas (H2) reacts with 1 molecule of Oxygen gas (O2) to form 2 molecules of Water (H2O). This is the reaction that takes place inside a fuel cell :

2H2(g) + O2(g) → 2H2O(l)

Craig Beals hosts " The Science Spot " on Montana This Morning with Ed MacIntosh and Victoria Hill on KTVQ to start the morning with a Bang!

Instructions for each of the five Hydrogen explosions:

#1 : Hydrogen Balloon Explosion

Fill up a balloon with hydrogen gas

Tie balloon down to keep from floating away

Tape candle to meter stick

Place candle near balloon

Eye and hearing protection are required

#2 : Pringles Can Hydrogen Rocket

Tear fresh-seal off top of Pringles can

Poke a hold near Pringles man's eye, large enough to fit Hydrogen tube

Punch a hole in the metal bottom of the can, this will become the top

Invert Pringles can so metal portion with hole is facing up

Fill entire can with hydrogen gas, be sure to completely fill with hydrogen or it will blow up immediately

Place a rubber stopper (or anything heavy enough) over the hole on top to keep gas from escaping

Remove stopper, place lighter near hole on the top, stand back, enjoy

#3 : Soda Bottle Hydrogen Rocket

Melt or poke a hole in the bottom of a soda bottle

Melt or poke a hold about 3 cm below where the curve at the top of the bottle (neck) starts

Set up ring stand and iron ring

Invert bottle upside down so neck is facing down, resting on top of the iron ring; this is your launch pad

Fill bottle with hydrogen gas, completely evacuating all air from inside

Place rubber stopper (or anything heavy enough) over the hole on top to keep gas from escaping

Light, stand back, salute as your bottle heads to the moon

Eye and hearing protection required

#4 : Hydrogen Bubbles

Bubble solution recipe

1 cup dishwashing soap (I prefer Dawn original)

12 cups water

3/4 Tablespoon glycerin (Glycerin [also known as Glycerol] is available at most drug stores)

Turn on gas (away from all flames)

Blow bubbles using a bubble wand

Set up a flame well above hydrogen gas

Let bubbles float up into flame

Watch, smile, enjoy the burning bubbles

#5 : Hydrogen Fireball in your Hand

Make hydrogen bubbles by placing gas tube in a beaker of bubble solution (see recipe above)

Get hands wet (this provides a barrier to the flame because water has high specific heat, meaning it does NOT like to change temperature easily - this heat buffer is only temporary and does not mean you will not get burned! But, as a chemistry teacher, I have done this demo countless times and have not had any problems - however, this is not an endorsement for you to try it!)

Scoop a handful of bubbles, hold at arms length and light

Keep on Learning! ~Craig Beals

#Hydrogen #Oxygen #Combustion #Reaction #Oxidation #Water #FuelCell #Pringles #Rocket #Explosion

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• English Norsk

Door 1: Make a Pringles rocket

Did you know that you can turn a regular Pringles box into a rocket? In the first door of this year's Christmas calendar, Inge and Magne make a hydrogen gas rocket that goes off with a bang.

The Joule calendar 2021 strikes a blow for good old-fashioned hydrogen gas production. A Pringles box is filled with hydrogen gas and ignited via a fuse that enters the box. When it burns and the hydrogen gas is mixed with oxygen, the two react and release energy by firing the box into the air with a bang.

NB! Experiments must always follow the safety rules that apply to laboratory experiments. Remember hearing protection and goggles.

You need:  

• An empty Pringles box 
• Fuse  
• Hydrochloric acid 
• Zinc bits 
• A flask with cork and hose 
• A piece of cotton 
• Wear safety goggles and hearing protection.
• Make a small hole in the bottom and top of the box. Use the lid.
• Seal the top hole with the cotton swab.
• In the flask: Add hydrochloric acid (30-50 ml) and 10-15 pieces of zinc.
• Insert the hose into the hole at the bottom of the box. Leave it for a while so that the box is filled with hydrogen gas.
• Turn the box over. Take out the cotton and insert the fuse.
• Light the fuse and pull away.

Here is the chemical formula for what you see:

The hydrogen gas is formed in this way:

Zn (s) + 2HCl®Zn2 + (aq) + 2Cl- (aq) + H2 (g)

About uis christmas calendar 2021:.

The Joule calendar is made by Inge Christ, head of The School Laboratory of Science at UiS , and UiS professor Magne Sydnes. For the seventh year in a row, they make a Christmas calendar with chemistry and physics experiments, popular amongst both young and old. This year there is so much energy in circulation that the Christmas calendar was renamed " The Joule calendar". Joule" is one of several units for measuring energy and is pronounced “jul” in Norwegian. With “jul” being the Norwegian word for Christmas, “joule calendar” makes up a fun pun!

This year’s calendar includes a mixture of experiments that can be done at home without the risk of blowing up the house as well as experiments that should only be performed in a lab while taking the necessary precaution