There’s Energy in That NutThere’s Energy in That Nut

Hannah Rae HendraHannah Rae Hendra

3rd Grade, Age 93rd Grade, Age 9

April 29, 2007April 29, 2007

Misawa, JapanMisawa, Japan

Scientific Investigation

ObjectiveObjective

Determine how much energy is in various Determine how much energy is in various types of nuts through heating of water by types of nuts through heating of water by burning the nutsburning the nuts

Perform similar experiment with Perform similar experiment with marshmallowsmarshmallows

Document resultsDocument results Have funHave fun

Scientific Investigation

Experiment HypothesisExperiment Hypothesis

The brazil nut will burn longest because it is The brazil nut will burn longest because it is the largest.the largest.

Marshmallows will be comparable to the Marshmallows will be comparable to the nuts.nuts.

Scientific Investigation

ResearchResearch

Internet Google Search provided Several Internet Google Search provided Several Different Experiment TypesDifferent Experiment Types

Keywords: “Science Experiment Nuts”Keywords: “Science Experiment Nuts”– 1,120,000 results in 0.11 seconds1,120,000 results in 0.11 seconds

Chose the following as a basis: Chose the following as a basis: http://www.woodrow.org/teachers/chemistry/institutes/http://www.woodrow.org/teachers/chemistry/institutes/1988/foodheat.html1988/foodheat.html

Scientific Investigation

Search ResultsSearch Results

Scientific Investigation

ProcedureProcedure

1.1. Measure 50ml of water in beaker.Measure 50ml of water in beaker.

2.2. Pour the water into a metal measuring cup.Pour the water into a metal measuring cup.

3.3. Measure the starting temperature of the water.Measure the starting temperature of the water.

4.4. Position the nut under the water and light it.Position the nut under the water and light it.

5.5. Start the timer and watch for the nut to burn out.Start the timer and watch for the nut to burn out.

6.6. Once the nut is done burning, stop the timer and Once the nut is done burning, stop the timer and record the temperature.record the temperature.

Scientific Investigation

The Experiment (1)The Experiment (1)

Scientific Investigation

Precisely Measuring The Water

The Nuts Observing the Process

The Experiment (2)The Experiment (2)

Scientific Investigation

Precisely Documenting Results

Explaining the Experiment to Inquisitive Neighbors

Experiment Results (1)Experiment Results (1)

Scientific Investigation

AlmondAlmond WalnutWalnut HazelnutHazelnut

Starting Water TempStarting Water Temp 70 70 ooFF 64 64 ooFF 61 61 ooFF

DurationDuration 4m 23s4m 23s 4m 48s4m 48s 3m 32s3m 32s

Ending Water TempEnding Water Temp 165 165 ooFF 163 163 ooFF 151 151 ooFF

Change in Water TempChange in Water Temp 95 95 ooFF 99 99 ooFF 90 90 ooFF

Experiment Results (2)Experiment Results (2)

Scientific Investigation

PeanutPeanut BrazilBrazil CashewCashew

Starting Water TempStarting Water Temp 60 60 ooFF 62 62 ooFF 57 57 ooFF

DurationDuration 2m 40s2m 40s 11m 57s11m 57s 3m 10s3m 10s

Ending Water TempEnding Water Temp 134 134 ooFF 194 194 ooFF 154 154 ooFF

Change in Water TempChange in Water Temp 74 74 ooFF 132 132 ooFF 97 97 ooFF

Experiment Results (3)Experiment Results (3)

Scientific Investigation

Miniature Miniature MarshmallowMarshmallow

Standard Standard MarshmallowMarshmallow

Starting Water TempStarting Water Temp 56 56 ooFF 55 55 ooFF

DurationDuration 18s18s 50s50s

Ending Water TempEnding Water Temp 64 64 ooFF 76 76 ooFF

Change in Water TempChange in Water Temp 8 8 ooFF 21 21 ooFF

Final ObservationsFinal Observations The nuts burned for a long time.The nuts burned for a long time. The brazil nut burned the longest.The brazil nut burned the longest. The marshmallows didn’t do much.The marshmallows didn’t do much. The brazil nut had the most energy.The brazil nut had the most energy. The peanut had the least energy.The peanut had the least energy. The size of the nuts varied.The size of the nuts varied. This experiment was exciting.This experiment was exciting.

Scientific Investigation

The DisplayThe Display

Scientific Investigation