Radioactive Dating and Isotopes

The video tutorial guides students through a lab assignment on determining the age of items using the radioactive dating game. It covers accessing the simulation, using Carbon-14 for dating younger items, Uranium-238 for older materials, and custom dating options. The tutorial also explains how to correlate ages with geologic eras and periods using a geologic time scale.

What is the primary objective of the lab assignment discussed in the video?

• To determine the age of items using radioactive dating

• To learn about different types of fossils

• To explore the history of the Earth

• To understand the process of fossilization

Which website is recommended for accessing the radioactive dating game?

• BBC Earth

• National Geographic

• Wikipedia

• archive CNX org

What is the purpose of the 'Dating Game' tab in the simulation?

• To determine the age of items using isotopes

• To review the concept of half-life

• To play a game about dinosaurs

• To learn about different types of rocks

Which isotope is suitable for dating younger items like a human skull or a wooden cup?

• Uranium-238

• Thorium-232

• Carbon-14

• Potassium-40

What percentage of Carbon-14 was found in the bone during the simulation?

• 50%

• 83.9%

• 14.4%

• 97.9%

How old was the rock dated using Uranium-238 in the simulation?

• 136.5 million years

• 27.97 million years

• 66 million years

• 1,477 years

What custom half-life was used to date the fish fossil?

• 5 million years

• 10 million years

• 20 million years

• 50 million years

What is the geologic era of the bone dated to be 1,477 years old?

• Cenozoic

• Proterozoic

• Paleozoic

• Mesozoic

Which period does the fish fossil, dated at 27.97 million years, belong to?

• Triassic

• Cretaceous

• Paleogene

• Jurassic

The rock dated at 136 million years falls into which geologic period?

• Permian

• Cretaceous

• Paleogene

• Quaternary