domingo, 24 de septiembre de 2017

endothermic reactions                        exothermic reactions
baking bread                                                                         burning wood
                                                                                              striking a match to light it
                                                                                              exploding dynamite

 why:                                                                                     Why:
is an endothermic reaction because it                                  because burning wood, striking a match to light
takes on the heat from its surroundings                               it and exploding dynamite gives off heat
a la/s

No hay comentarios.:

Publicar un comentario

Suscribirse a: Comentarios de la entrada (Atom)

how does a solid become liquid - freezing

There is a special temperature for every substance called melting point . when a solids reaches the temperature of its melting point, it bec...

  • energy in the world
    energy is the ability to work. all things in the wolrd have energy. also with need energy to move. energy can be stored or in movement. elec...
  • Solids
    Kinetic theory of matter Kinetic theory explains the property of different states of matter. The particules in solid, liquid ang gases ...
  • skill builder
    my house is 1500 square feet. we need a collector that occupies a third of the house. collector area: 300ft2    1 living space:  1500ft...