What you need:
4 candles(red for fire, blue for water, green for earth and white for air) 
Quartz crystals (4 not necessary) 
Pentagram 
Table

Draw your pentagram. Light your candles in each corner of the pentagram facing the 4 element points each candle on each element. Get your crystals and put them in between the spaces on your pentagram
Chant:
"Now's the time,
Now's the hour,
ours is the magic
ours is the power." x3
This spell is for 4 people; if it's for 1 then only use one candle that represents your element, and use 1 crystal placing it on your element.