GROUP MEMBERS

NAME MATRIC NO.

WONG SIEW CHING D20091034815

MARIA TING MEE SING D20081032208

PUI WAN TING D20091034840

SITI RAHAYU BT MOHAMED NOORD20091034855

UMI ABIBAH BT SULAIMAN D20091034811

SCIENTIFIC CONCEPT• Food energy is the amount of

energy obtained from food that is available through cellular respiration.

• As food burns, it releases energy.• Formula to calculate food energy:

ENGAGE

• The nuts provide us energy. Why?• Which nut has the highest energy?

And which has the lowest energy?

Cashew Nut

Peanut

Almond

ENPOWER• Material & Apparatus:

– clamp – stand – boiling tube– food: peanut, cashew nut, almond – a mounted needle– data logger and computer– temperature sensor– Bunsen burner– matches– electronic scales

ENPOWER

Data logger

ENPOWER• Procedures:

1. Connect the temperature sensor to the first socket on the data logger.

2. Weigh the food sample and record it. Add 30 cm3 water to the boiling tube.

3. Start the sensing software and see that it recognizes the sensors we attach. 

4. Set up the software to record. Heat the food in a Bunsen flame to light it.

5. Heat the tube of water with the burning food until it has completely burnt. Re-light the food if necessary.

6. Weight the burnt food with the same electronic scale.

Video Recorded While We Are Doing The Experiment

RESULTS

Food sample Initial mass (g) Final mass (g)Changes in mass

(g)

Peanut 0.3246 0.0473 0.2104

Cashew nut 0.3246 0.1738 0.1508

Almond 0.3246 0.1330 0.1916

RESULTS

Food sampleInitial

temperature (°c )

Final temperature

(°c )

Changes in temperature

(°c )

Peanut 27.100 37.966 10.866

Cashew nut 26.593 32.526 5.933

Almond 26.694 31.166 4.472

RESULTS OF WATER TEMPERATURE BY HEAT

GIVEN OUT BY OF PEANUT, CASHEW NUT

AND ALMOND

Timem(s) Almond Cashew Nut Peanut Timem(s) Almond Cashew Nut Peanut Timem(s) Almond Cashew Nut Peanut

1 26.694 26.593 27.1 41 26.593 26.694 28.013 81 26.694 27.1 28.419

2 26.694 26.593 27.201 42 26.694 26.694 28.013 82 26.694 27.1 28.419

3 26.694 26.593 27.201 43 26.694 26.593 28.114 83 26.694 27.1 28.4194 26.694 26.593 27.201 44 26.694 26.796 28.114 84 26.694 27.1 28.4195 26.694 26.593 27.201 45 26.694 26.796 28.114 85 26.593 27.201 28.4196 26.694 26.593 27.303 46 26.694 26.796 28.114 86 26.694 27.1 28.4197 26.694 26.593 27.201 47 26.694 26.796 28.114 87 26.694 27.1 28.4198 26.694 26.593 27.303 48 26.694 26.796 28.114 88 26.694 27.201 28.317

9 26.593 26.491 27.404 49 26.593 26.796 28.114 89 26.593 27.201 28.41910 26.593 26.593 27.404 50 26.694 26.796 28.216 90 26.694 27.201 28.41911 26.694 26.593 27.404 51 26.694 26.796 28.114 91 26.694 27.201 28.41912 26.593 26.593 27.404 52 26.694 26.796 28.216 92 26.694 27.201 28.31713 26.694 26.593 27.404 53 26.694 26.796 28.216 93 26.694 27.201 28.41914 26.593 26.593 27.506 54 26.694 26.796 28.216 94 26.694 27.303 28.41915 26.694 26.593 27.506 55 26.694 26.897 28.216 95 26.694 27.303 28.5216 26.694 26.593 27.506 56 26.694 26.796 28.216 96 26.694 27.303 28.419

17 26.694 26.593 27.506 57 26.694 26.897 28.216 97 26.694 27.303 28.419

18 26.593 26.491 27.506 58 26.694 26.796 28.216 98 26.694 27.303 28.5219 26.694 26.593 27.607 59 26.694 26.897 28.317 99 26.593 27.303 28.5220 26.694 26.593 27.607 60 26.694 26.897 28.317 100 26.694 27.303 28.5221 26.694 26.593 27.607 61 26.593 26.897 28.317 101 26.694 27.303 28.5222 26.694 26.593 27.607 62 26.694 26.796 28.317 102 26.694 27.404 28.41923 26.694 26.593 27.607 63 26.694 26.897 28.317 103 26.694 27.404 28.52

24 26.694 26.593 27.709 64 26.694 26.999 28.317 104 26.694 27.404 28.5225 26.694 26.593 27.709 65 26.694 26.897 28.317 105 26.694 27.404 28.5226 26.694 26.593 27.709 66 26.694 26.999 28.317 106 26.694 27.404 28.5227 26.694 26.593 27.709 67 26.694 26.999 28.317 107 26.694 27.404 28.5228 26.694 26.593 27.709 68 26.694 26.999 28.317 108 26.694 27.404 28.5229 26.593 26.593 27.709 69 26.694 26.999 28.317 109 26.694 27.404 28.62130 26.694 26.694 27.81 70 26.694 26.999 28.317 110 26.694 27.404 28.62131 26.694 26.593 27.81 71 26.694 26.999 28.419 111 26.694 27.404 28.621

32 26.694 26.694 27.81 72 26.694 26.999 28.419 112 26.694 27.506 28.62133 26.694 26.593 27.81 73 26.593 26.999 28.419 113 26.694 27.506 28.62134 26.593 26.694 27.911 74 26.694 26.999 28.317 114 26.694 27.506 28.62135 26.694 26.694 27.81 75 26.694 27.1 28.419 115 26.694 27.506 28.5236 26.694 26.694 27.911 76 26.593 27.1 28.419 116 26.694 27.506 28.72337 26.593 26.694 27.911 77 26.694 27.1 28.419 117 26.694 27.506 28.62138 26.694 26.694 27.911 78 26.694 27.1 28.317 118 26.796 27.506 28.621

39 26.694 26.694 28.013 79 26.593 26.999 28.419 119 26.694 27.506 28.72340 26.694 26.694 28.013 80 26.694 27.1 28.317 120 26.796 27.506 28.723

Timem(s) Almond Cashew Nut Peanut Timem(s) Almond Cashew Nut Peanut Timem(s) Almond Cashew Nut Peanut

121 26.694 27.506 28.723 161 26.796 28.317 29.129 201 26.897 29.027 29.636

122 26.694 27.506 28.723 162 26.796 28.317 29.129 202 26.897 29.027 29.737

123 26.694 27.607 28.824 163 26.796 28.317 29.027 203 26.897 29.027 29.737124 26.694 27.607 28.824 164 26.694 28.317 29.129 204 26.897 29.027 29.737125 26.694 27.607 28.824 165 26.796 28.317 29.129 205 26.897 29.129 29.737126 26.694 27.607 28.723 166 26.796 28.317 29.027 206 26.897 29.027 29.737127 26.694 27.709 28.824 167 26.796 28.419 29.129 207 26.897 29.129 29.839128 26.796 27.709 28.824 168 26.796 28.419 29.129 208 26.897 29.129 29.839

129 26.694 27.709 28.824 169 26.796 28.419 29.129 209 26.796 29.129 29.839130 26.694 27.709 28.824 170 26.796 28.317 29.129 210 26.897 29.129 29.94131 26.694 27.709 28.824 171 26.796 28.317 29.23 211 26.796 29.23 29.94132 26.796 27.709 28.926 172 26.796 28.52 29.23 212 26.897 29.23 29.839133 26.796 27.709 28.926 173 26.796 28.52 29.23 213 26.897 29.23 29.94134 26.796 27.709 28.926 174 26.796 28.52 29.23 214 26.897 29.23 29.94135 26.796 27.81 28.926 175 26.796 28.52 29.23 215 26.897 29.23 29.94136 26.796 27.81 28.926 176 26.796 28.52 29.129 216 26.897 29.331 30.097

137 26.796 27.81 28.926 177 26.796 28.52 29.23 217 26.897 29.331 30.097

138 26.694 27.81 28.926 178 26.796 28.52 29.23 218 26.897 29.23 30.097139 26.694 27.81 28.926 179 26.796 28.621 29.331 219 26.897 29.331 30.097140 26.796 27.81 28.926 180 26.796 28.621 29.331 220 26.897 29.331 30.194141 26.796 27.911 29.027 181 26.796 28.621 29.23 221 26.897 29.331 30.194142 26.796 27.81 29.027 182 26.796 28.621 29.331 222 26.897 29.331 30.194143 26.796 27.911 29.027 183 26.796 28.723 29.331 223 26.999 29.433 30.194

144 26.796 27.911 29.027 184 26.897 28.723 29.331 224 26.999 29.433 30.194145 26.694 27.911 29.027 185 26.796 28.723 29.331 225 26.999 29.433 30.194146 26.796 27.911 29.027 186 26.796 28.723 29.331 226 26.897 29.433 30.194147 26.796 27.911 29.027 187 26.796 28.824 29.433 227 26.999 29.331 30.291148 26.796 28.013 29.027 188 26.796 28.723 29.433 228 26.999 29.534 30.291149 26.796 28.013 29.027 189 26.897 28.824 29.433 229 26.999 29.534 30.291150 26.796 28.114 29.027 190 26.897 28.824 29.433 230 26.999 29.534 30.291151 26.796 28.114 29.027 191 26.897 28.824 29.433 231 26.999 29.534 30.291

152 26.694 28.114 29.027 192 26.897 28.824 29.534 232 26.999 29.534 30.291153 26.796 28.114 29.027 193 26.796 28.824 29.534 233 26.999 29.534 30.291154 26.796 28.114 29.129 194 26.897 28.926 29.534 234 26.999 29.636 30.291155 26.796 28.114 29.027 195 26.897 28.926 29.433 235 27.1 29.636 30.389156 26.796 28.216 29.129 196 26.897 28.926 29.534 236 27.1 29.534 30.389157 26.796 28.216 29.129 197 26.796 29.027 29.636 237 27.1 29.636 30.389158 26.796 28.216 29.129 198 26.897 28.926 29.636 238 27.1 29.636 30.389

159 26.796 28.216 29.129 199 26.897 29.027 29.636 239 27.1 29.737 30.486160 26.796 28.317 29.129 200 26.897 29.027 29.636 240 27.1 29.737 30.486

Timem(s) Almond Cashew Nut Peanut Timem(s) Almond Cashew Nut Peanut Timem(s) Almond Cashew Nut Peanut

241 27.1 29.737 30.486 281 27.607 30.486 31.457 321 28.114 31.069 32.817

242 27.1 29.737 30.486 282 27.607 30.583 31.554 322 28.216 31.069 32.817

243 26.999 29.839 30.583 283 27.607 30.583 31.554 323 28.216 31.069 32.817244 27.1 29.839 30.583 284 27.607 30.486 31.651 324 28.216 31.166 32.817245 27.1 29.839 30.583 285 27.709 30.583 31.651 325 28.216 31.069 32.914246 27.201 29.839 30.583 286 27.709 30.583 31.651 326 28.317 31.166 32.914247 27.201 29.839 30.583 287 27.709 30.486 31.651 327 28.317 31.166 33.011248 27.201 29.839 30.583 288 27.709 30.583 31.749 328 28.216 31.166 33.011

249 27.201 29.839 30.68 289 27.709 30.583 31.749 329 28.317 31.166 33.011250 27.201 29.94 30.68 290 27.709 30.68 31.846 330 28.317 31.166 33.109251 27.1 29.94 30.68 291 27.709 30.68 31.846 331 28.317 31.166 33.011252 27.201 29.94 30.777 292 27.81 30.68 31.943 332 28.419 31.263 33.109253 27.201 29.94 30.777 293 27.81 30.68 31.943 333 28.317 31.166 33.206254 27.201 30.097 30.777 294 27.81 30.68 31.943 334 28.419 31.263 33.206255 27.303 30.097 30.777 295 27.81 30.777 32.04 335 28.419 31.263 33.206256 27.303 30.097 30.777 296 27.81 30.777 32.04 336 28.419 31.263 33.303

257 27.201 30.097 30.874 297 27.911 30.777 31.943 337 28.52 31.263 33.206

258 27.303 30.097 30.874 298 27.911 30.777 32.04 338 28.52 31.263 33.303259 27.303 30.097 30.874 299 27.911 30.68 32.137 339 28.52 31.263 33.303260 27.201 30.194 30.874 300 27.911 30.777 32.137 349 28.52 31.263 33.4261 27.303 30.194 30.971 301 27.911 30.874 32.137 341 28.52 31.263 33.4262 27.303 30.194 30.874 302 27.911 30.874 32.234 342 28.52 31.263 33.497263 27.303 30.194 30.971 303 27.911 30.874 32.234 343 28.52 31.263 33.497

264 27.404 30.291 30.971 304 27.81 30.874 32.331 344 28.52 31.36 33.497265 27.404 30.291 31.069 305 28.013 30.874 32.331 345 28.621 31.263 33.497266 27.404 30.291 31.069 306 28.013 30.874 32.331 346 28.621 31.263 33.594267 27.404 30.291 31.166 307 28.013 30.874 32.331 347 28.621 31.263 33.594268 27.404 30.291 31.069 308 28.013 30.874 32.331 348 28.621 31.263 33.594269 27.506 30.291 31.166 309 28.013 30.874 32.331 349 28.621 31.36 33.594270 27.506 30.389 31.166 310 28.013 30.971 32.429 350 28.723 31.263 33.691271 27.506 30.389 31.263 311 28.114 30.971 32.526 351 28.621 31.36 33.691

272 27.506 30.389 31.263 312 28.114 30.971 32.526 352 28.723 31.36 33.789273 27.404 30.389 31.166 313 28.013 30.874 32.526 353 28.723 31.36 33.789274 27.506 30.389 31.263 314 28.114 30.971 32.526 354 28.723 31.36 33.691275 27.506 30.389 31.36 315 28.114 30.971 32.623 355 28.621 31.36 33.886276 27.506 30.486 31.36 316 28.114 30.971 32.623 356 28.824 31.36 33.886277 27.506 30.389 31.36 317 28.114 31.069 32.623 357 28.824 31.36 33.886278 27.506 30.486 31.457 318 28.216 31.069 32.623 358 28.824 31.36 33.983

279 27.607 30.486 31.457 319 28.216 31.069 32.72 359 28.824 31.36 33.983280 27.607 30.486 31.554 320 28.216 30.971 32.72 360 28.824 31.36 33.983

Timem(s) Almond Cashew Nut Peanut Timem(s) Almond Cashew Nut Peanut Timem(s) Almond Cashew Nut Peanut

361 28.824 31.36 34.08 401 29.534 31.263 35.246 441 30.291 31.651 36.12

362 28.824 31.36 34.08 402 29.636 31.36 35.246 442 30.389 31.554 36.314

363 28.926 31.36 34.08 403 29.636 31.457 35.246 443 30.389 31.651 36.314364 28.926 31.263 34.08 404 29.636 31.36 35.246 444 30.389 31.554 36.314365 28.824 31.36 34.177 405 29.737 31.457 35.343 445 30.389 31.651 36.411366 28.926 31.263 34.177 406 29.737 31.457 35.343 446 30.389 31.651 36.314367 28.926 31.36 34.08 407 29.737 31.457 35.343 447 30.389 31.651 36.411368 29.027 31.36 34.177 408 29.737 31.457 35.343 448 30.486 31.651 36.411

369 29.027 31.263 34.274 409 29.839 31.457 35.44 449 30.486 31.651 36.509370 29.027 31.36 34.274 410 29.839 31.457 35.44 450 30.486 31.749 36.509371 29.027 31.36 34.274 411 29.839 31.457 35.537 451 30.486 31.749 36.509372 29.129 31.263 34.371 412 29.839 31.457 35.537 452 30.486 31.651 36.509373 29.129 31.36 34.371 413 29.839 31.457 35.537 453 30.486 31.749 36.606374 29.129 31.36 34.371 414 29.94 31.36 35.537 453 30.583 31.749 36.606375 29.027 31.36 34.469 415 29.839 31.457 35.634 455 30.583 31.749 36.606376 29.129 31.36 34.469 416 29.94 31.457 35.634 456 30.583 31.749 36.703

377 29.129 31.36 34.469 417 29.94 31.457 35.634 457 30.583 31.846 36.606

378 29.23 31.36 34.469 418 29.94 31.457 35.634 458 30.583 31.846 36.703379 29.23 31.36 34.566 419 29.94 31.457 35.731 459 30.583 31.846 36.8380 29.23 31.36 34.566 420 30.097 31.457 35.731 460 30.68 31.749 36.8381 29.23 31.36 34.566 421 30.097 31.457 35.731 461 30.68 31.846 36.703382 29.331 31.263 34.566 422 30.097 31.457 35.731 462 30.583 31.749 36.8383 29.331 31.263 34.663 423 30.097 31.457 35.731 463 30.68 31.846 36.897

384 29.331 31.36 34.663 424 30.097 31.457 35.829 464 30.68 31.846 36.8385 29.331 31.36 34.663 425 30.194 31.457 35.829 465 30.777 31.943 36.897386 29.331 31.36 34.76 426 30.194 31.457 35.829 466 30.68 31.943 36.897387 29.331 31.263 34.76 427 30.194 31.457 35.926 467 30.68 31.943 36.897388 29.433 31.36 34.76 428 30.194 31.554 35.926 468 30.777 31.943 36.994389 29.331 31.36 34.857 429 30.194 31.554 35.926 469 30.777 31.943 36.994390 29.433 31.36 34.857 430 30.194 31.554 36.023 470 30.777 32.04 37.091391 29.433 31.36 34.857 431 30.194 31.554 36.023 471 30.777 31.943 37.091

392 29.433 31.263 34.954 432 30.194 31.554 36.023 472 30.777 32.04 37.091393 29.433 31.36 34.954 433 30.291 31.457 36.023 473 30.777 32.04 37.189394 29.534 31.36 34.954 434 30.291 31.554 36.023 474 30.874 32.04 37.189395 29.534 31.36 35.051 435 30.291 31.554 36.12 475 30.874 32.04 37.189396 29.534 31.36 34.954 436 30.291 31.554 36.12 476 30.874 32.04 37.286397 29.534 31.36 35.051 437 30.291 31.554 36.12 477 30.874 32.137 37.286398 29.534 31.36 35.149 438 30.291 31.554 36.217 478 30.874 32.137 37.286

399 29.534 31.36 35.149 439 30.291 31.554 36.217 479 30.874 32.137 37.286400 29.636 31.36 35.149 440 30.389 31.554 36.217 480 30.874 32.137 37.286

Timem(s) Almond Cashew Nut Peanut Timem(s) Almond Cashew Nut Peanut Timem(s) Almond Cashew Nut Peanut

481 30.971 32.137 37.383

482 30.971 32.137 37.383

483 30.971 32.137 37.383

484 30.971 32.234 37.48

485 30.971 32.234 37.48

486 31.069 32.137 37.48

487 31.069 32.234 37.577

488 30.971 32.331 37.674

489 30.971 32.331 37.577

490 31.069 32.331 37.674

491 31.069 32.331 37.674

492 31.069 32.331 37.771

493 31.166 32.429 37.771

494 31.166 32.429 37.674

495 31.069 32.429 37.771

496 31.166 32.429 37.869

497 31.069 32.429 37.869

498 31.069 32.429 37.869

499 31.069 32.526 37.869

500 31.166 32.526 37.966

RESULTS

GRAPHS OF THE WATER

TEMPERATURE

water temperature

0

5

10

15

20

25

30

35

40

0 50 100 150 200 250 300 350 400 450

time

tempe

rature

almond cashew nut peanut

RESULTS

• Energy released from almond per gram(J)

=

= 2940.9 J

= 2.941 KJ

RESULTS• Energy released from cashew nut per gram(J) = = 4957.3 J

= 4.957 KJ

• Energy released from peanut per gram(J) = = 6507.2 J = 6.507 KJ

Discussions

•What do you observe from the graph about the water temperature?

•Do all the nuts have same level of energy?

•Does the increase of temperature among the three types of nuts is the same?

• From the graph, which type of nut produces the highest energy?

• Arrange the food sample according to its energy in ascending order.

• Is your result accurate? Does all the energy from the nuts is used to heat the water or some heat is lost? How could this affect your results?

ENHANCE

• Do you eat to live OR live to eat???• WHY???

OR

eat to live live to eat

• Many will say they eat to live because it is necessary to sustain life and as a respond to hunger. They eat in order to obtain the strength to carry on life's daily activities.

• However, there are also people who live to eat. They love to eat and they crave food of any and every kind. Live to eat is a habit of enjoying eating. This kind of people can easily suffer from obesity.

• My advise is we should eat to live, don’t live to eat.

Unique Features of This Activity

• the temperature can be recorded every second• the temperature can be recorded in three

decimal places• the setup of the apparatus is quite simple and

we only need a test tube and a temperature sensor to test the energy of the nuts

• the experiment gives only a very approximate estimate for each foodstuff, so the students can use any type of food to replace the nuts and calculate the food energy.

• students can compare the graphs and differentiate the energy between the three types of nuts

Thank You….