Answer:
1.Take a triple beam balance to find the weight
2.Then take a graduated cylinder a fill it about half way up with water
3.Measure how much water is in the container
4.Put your irregular shape in the water
5.Measure the water now
6.Subtract the difference
7.Then take your weight (in grams) divide by your volume (the difference of the water)
AND THAT IS YOUR DENSITY