There’s Energy in That Nut Hannah Rae Hendra 3rd Grade, Age 9 April 29, 2007 Misawa, Japan Scientific Investigation

Objective Determine how much energy is in various types of nuts through heating of water by burning the nuts Determine how much energy is in various types of nuts through heating of water by burning the nuts Perform similar experiment with marshmallows Perform similar experiment with marshmallows Document results Document results Have fun Have fun Scientific Investigation

Experiment Hypothesis The brazil nut will burn longest because it is the largest. The brazil nut will burn longest because it is the largest. Marshmallows will be comparable to the nuts. Marshmallows will be comparable to the nuts. Scientific Investigation

Research Internet Google Search provided Several Different Experiment Types Internet Google Search provided Several Different Experiment Types Keywords: “Science Experiment Nuts” Keywords: “Science Experiment Nuts” –1,120,000 results in 0.11 seconds Chose the following as a basis: Chose the following as a basis: 8/foodheat.html Scientific Investigation

Search Results Scientific Investigation

Procedure 1. Measure 50ml of water in beaker. 2. Pour the water into a metal measuring cup. 3. Measure the starting temperature of the water. 4. Position the nut under the water and light it. 5. Start the timer and watch for the nut to burn out. 6. Once the nut is done burning, stop the timer and record the temperature. Scientific Investigation

The Experiment (1) Scientific Investigation Precisely Measuring The Water The Nuts Observing the Process

The Experiment (2) Scientific Investigation Precisely Documenting Results Explaining the Experiment to Inquisitive Neighbors

Experiment Results (1) Scientific Investigation AlmondWalnutHazelnut Starting Water Temp 70 o F 64 o F 61 o F Duration 4m 23s 4m 48s 3m 32s Ending Water Temp 165 o F 163 o F 151 o F Change in Water Temp 95 o F 99 o F 90 o F

Experiment Results (2) Scientific Investigation PeanutBrazilCashew Starting Water Temp 60 o F 62 o F 57 o F Duration 2m 40s 11m 57s 3m 10s Ending Water Temp 134 o F 194 o F 154 o F Change in Water Temp 74 o F 132 o F 97 o F

Experiment Results (3) Scientific Investigation Miniature Marshmallow Standard Marshmallow Starting Water Temp 56 o F 55 o F Duration18s50s Ending Water Temp 64 o F 76 o F Change in Water Temp 8 o F 21 o F

Final 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 Display Scientific Investigation