Technology also provides tools for investigations, inquiry, and analysis.
Matter is made of minute particles called atoms, and atoms are composed of even smaller components.
Geologic time can be estimated by observing rock sequences and using fossils to correlate the sequences at various locations.
Current methods include using the known decay rates of radioactive isotopes present in rocks to measure the time since the rock was formed.
With dice at the ready, students can roll their way to better understanding of how an isotope decays.
When it comes to talking about time and age on a geologic scale, our everyday watches, clocks, and units of measurement fall short. We can count seconds and even measure smaller units that help us evaluate the outcome of a race.
When an element has atoms that differ in the number of neutrons, these atoms are called different isotopes of the element.