7th grade science help? About energy?

Question

Please answer the following....

-Give two examples of this type of energy

-Explain how you use this form of energy in your life

-Completely explain how this type of energy can be converted into another form of energy

1: Thermal energy

2: Chemical energy

3: Electrical energy

Answer 1

1. Thermal

-heat from burning gas to cook food

-heat from sun warming pavement in summer

-uses:  cooking,winter heating,drying cloths,internal combustion engine

-conversions:  Thermal can be converted to chemical during an endothermic reaction.  It can also be converted to electrical by steam turbine power generation

2.Chemical

-fireworks

-food burnings (converting carbs to carbon black)

uses:  firearms, pyrotechnics, cells in your body using simple sugars

-conversion: chemical to thermal (explosions),chemical to electrical in fuel cells

3.Electrical

-lightning

-static shock

uses:  computers,tv,etc.

conversion: electrical to thermal in heating elements,electrical to chemical in electrolysis