Where do you get elemental chips in Mega Man Battle Network

Elemental chips simply have a special 'Elemental property' When you use battlechips, there should be a little square with a small symbol on it below the chip's main ID picture. It the symbol is... A flame: The chip is a Fire-emlement chip. These chips do double damage to wood-base chips. A Leaf: The chip is a wood-element chip. These do double damage to electrical-base chips. A Lightning: The chip is a electrical-element chip. It does double damage to water-base chips. Some raindrops: The chip is a water-element chip. It does double damage to fire-base chips. A little ball: This chip has no element. It does only the designated damage. So there you have it. These are the five basic chip types. Just look for that little symbol!