How to kill an Earthworm for dissection?

Well first you catch a grass hoper. You can mostly catch them in jars but make it a big jar and poke holes in the top(not in the grass hoper) of the jar. So when you have finished doing this you kill the grass hoper with rat poisin. Then get a knife and dicappeted him. Then you take you knife and carefully remove all that yucky stuff. BLEH!