What are two methods you could use to determine the density of a rock?

Answer 1

Heres one great experiment:
http://www.union.edu/PUBLIC/GEODEPT/hollocher/pedagogy/K-12_labs/Labs/KH2/KTH2.htm

Here is another site you may find helpful:
http://chem.lapeer.org/Chem1Docs/DensityLab.html

Answer 2

For solids that have an irregular shape, the displacement method must be used to determine their volume. Choose a graduated cylinder large enough to hold the object. Fill the cylinder half-way with water (enough water to cover the object completely, but not so much that when the object is added, the level of the water rises above the point that the cylinder can measure) and note the exact volume of the water. Add the object to the water in the cylinder, taking care not to splash the water out of the cylinder. Note the new volume in the graduated cylinder. Because 1ml of water is equal to 1 cubic centimeter of water, the volume of the object is equal to the new volume in the graduated cylinder minus the original volume of water.

When both the mass and volume of the object is known, insert these values into the density formula and solve the equation. The proper unit for the density of the object is the unit of its mass over the unit of its volume, for example - g/ml.

Answer 3

Water displacement and gamma method.

Answer 4

weigh it in grams. fill a grauated cylinder to 50 mL and drop the rock it. see how much the water rises, and enter the information like this: __g/__mLsq

Answer 5

paper and scisors