1. Period 5

2. The first battery was invented by Alessandro Volta. He created it by sticking together layers of zinc, silver, and wet paper. Volta placed copper wire at each end and allowed a current to flow.

3.  The first battery was an electrochemical cell.  Chemical reactions occur between electrolytes and electrodes in an electrochemical cell.  In an electrochemical cell, zinc and aluminum release more electrons.  Chemical energy is stored in chemical compounds.

4.  Batteries are made by combining two or more electrochemical cells.  A wet cell battery is surrounded by a liquid and they tend to be bigger.  A dry cell battery is surrounded by paste and are more commonly used.  Some kinds of batteries can be recharged by reversing the flow of electrons.

5.  A) energy stored in electrons  B) energy stored in chemical compounds  C) energy stored in electrolytes  D) energy stored on mars

6.  A) energy stored in electrons  B) energy stored in chemical compounds  C) energy stored in electrolytes  D) energy stored on mars

7.  A) Mario Batali  B) some italian dude  C) Alessandro Volta  D) Aro Battero

8.  A) Mario Batali  B) some italian dude  C) Alessandro Volta  D) Aro Battero

9.  A) dry cell and energizer bunnies  B) dry cell and wet cell  C) dead and charged  D) duracell and rayovac ;)

10.  A) dry cell and energizer bunnies  B) dry cell and wet cell  C) dead and charged  D) duracell and rayovac ;)

11.  A) electrolytes and electrodes in a electrochemical cell  B) zinc and copper in an electrochemical cell  C) zinc and aluminum in an electrochemical cell  D) mickey mouse and Mr. W in a blue and yellow box

12.  A) electrolytes and electrodes in a electrochemical cell  B) zinc and copper in an electrochemical cell  C) zinc and aluminum in an electrochemical cell  D) mickey mouse and Mr. W in a blue and yellow box

13.  A) the static shock it causes  B) how much energy it has  C) the voltages of the cells  D) how much it weighs

14.  A) the static shock it causes  B) how much energy it has  C ) the voltages of the cells  D) how much it weighs

15.  A) copper and aluminum  B) zinc and aluminum  C) silver and iron  D) gold and steel

16.  A) copper and aluminum  B) zinc and aluminum  C) silver and iron  D) gold and steel

17.  A) energy in batteries  B) energy in electrochemical cells  C) energy in chemicals  D) energy in chemical compounds

18.  A) energy in batteries  B) energy in electrochemical cells  C) energy in chemicals  D) energy in chemical compounds

19.  A) electrochemical cells  B) a thick gooey paste  C) electrodes  D) electrolytes

20.  A) electrochemical cells  B) a thick gooey paste  C) electrodes  D) electrolytes

21.  A)wet cells are big and dry cells are bigger  B)wet cells are surrounded by water and dry cells by paste  C)wet cells are better than dry cells  D) wet cells and dry cells are the same

22.  A)wet cells are big and dry cells are bigger  B)wet cells are surrounded by water and dry cells by paste  C)wet cells are better than dry cells  D) wet cells and dry cells are the same

23.  A)10  B) 8  C)57,789  D) 2

24.  A)10  B) 8  C)57,789  D ) 2