SKILL BUILDER 3

 Divide the folowing list of reactions int two groups by classifying each reaction as endothermic or exothermic: burning wood, striking a match to ligth it , baking bread, and  exploding dynamite. Explain why you placed each  reaction into one groups . If you need help, refer  to classifyng in the skill handbook on page 753 






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SKILL BUILDER 2

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When selecting an energy source for heating a home , consumers try to think about cost. use proportions to determine the area of the solar collector needed to heat a home collector area (ft2) 400 800 1200 1600 2000 2400 living space (ft2) 1200 2400 3600 4800 6000 7200
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THINKING CRITICALLY---- DEVELOPING SKILLS

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16.  as the principle of conservation of energy tells me not to be destroyed if it does not transform this many times this does not become energy which makes it look for another source to be supplied, this causes you to worry about taking care of the source that proves it, 17, the ambient temperature mainly influences the bodies in the middle where we are located, the hot water has an altered temperature since this is not the norm of this and the same way the cold, which causes that at some point this is stabilized with the middle. 18. is a potential energy since they are in motion. 19. 20. 20. In all heat transfer mechanisms, the cooling rate of a body is approximately proportional to the temperature difference between the body and the surrounding medium. This fact is known by the name of law of cooling of Newton. 21. a- halfways down - kinetic. b halways up - potencial energy - c highest point - potencial - d . lowest point - kinetic
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WHAT I LEARN

WHAT I LEARN  KINETIC THEORY OF MATTER  is the energy moving  particle in constant motion called kinetic theory of matter  . state of matter are liquids , gas, solids  , matter is anything that takes up space and has mass Atoms  The atoms are the smallest particle that makes up a given type . Two atoms of hydrogen form water molecule  most matter is made of atoms that  invisible  and cannot see and touch . Matter in Motion   the constant irregular of particles in air . Robert Brown   comes the Brownian motion that  the idea   that the particles  of all matter are in constant  , random motion that is  no as  kinetic theory of matter TEMPERATURE AND HEAT   When particles moved  fast are in heat} When particles not moved are cooled   
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