Pepper designs an experiment to demonstrate the Law of Conservation of Mass. She dissolves 25 g of salt into 100 g of water in a beaker. She heats the water to boiling until it is all evaporated and captures the steam. The salt is left behind in the bottom of the beaker. Pepper records her results in the table

this age may represent the age of the earth's accretion, of core formation, or of the material from which the earth formed. this dating is based on evidence from radiometric age-dating of meteorite material and is consistent with the radiometric ages of the oldest-known terrestrial and lunar samples.

which

what is a measurement of the earth’s history divided into time periods?

> fossil record <

sedimentary rock

> geologic time scale <

radioactive elements