What is a Pentacle?

It's an apparent derivation from the Greek prefix penta- (five) combined with the Latin suffix -culum (diminutive). An Italian word pentacolo appearing in 1483, is used to refer to 'any thing or table of five corners'. It's shape of a star. It represents five most important things which

1. spirit :  Spirit is the top point. It reminds us about the creators of all life,
   Allah (swt) the only God. He loves us and cares for us every day of our
     lives. Allah (swt)  has given us the four elements and
     these elements are the other four points.
2. AIR:  Air is important to all of us. We breathe it all the time. If we
     did not have air we would die. Take a deep breath, feel the air.
3. WATER: We also need water to survive. If we didn’t have water we would
   shrivel up and die. We have water in our mouth and eyes; the
   blood in our bodies is wet. Move your tongue around your mouth,
     feel the water
4. FIRE: Fire is warm, even hot sometimes. Feel your body it is warm.
   Every person has fire in their body. Sometimes when you have
     too much fire in your body you have a fever.
5. EARTH: From the earth we get our food which keeps us alive. Our body is
     also made up of earth, it is solid; touch your arm and feel it.