Energy Changes




Skill Builder


CONCLUSION:  My conclusion about this experiment is that the number of swings varies by the long of the string. If the string is short it will be do more swings per minute than if it is longer

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Energy reactions

Exothermic And Endothermic Reactions Endothermic reaction                                                            Exothermic reaction      Baking bread                                                                                          Burning wood                                                                                                                Striking a match to light it                                                                                                                Exploding dynamite Why is a endothermic reaction ?                                                                 W hy are exothermic reactions ? When you are baking a bread                                                              Are exothermic reactions because the heat is transferring to the                                                               in all the points heat is been  bread, so, this is absorbing                                  
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Skill Builder

SOURCE FOR HEAT ENERGY SOURCE:  I select a solar collector beacuse is a system that is starting to be using. CONCLUSION:  collector area  =400 ft2   = 1  living space = 1,076 ft2    = 2.69 For each 2.69 ft2 of living space of my home, we will need 1 ft2of solar collector, for keep the heat at the home.
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