A Lettuce Leaf Collected from the Salad Bar at the College

question 84

Short Answer

A lettuce leaf collected from the salad bar at the college cafeteria contains $\frac { 99 } { 100 }$ as much carbon-14 as a freshly cut lettuce leaf. How old is it? (Use 5700 years for the half-life of $14$ C.)

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Definitions:

Distributed Practice

A learning strategy that involves spreading out study sessions over time, rather than cramming them into a short period.

Spacing Effect

A psychological phenomenon where learning is more effective when study sessions are spaced out over time rather than conducted in a single session.

Human Memory

The capacity of the human brain to store, retain, and retrieve information from past experiences or learning.

World Wide Web

An information system where documents and other web resources are identified by URLs, interlinked by hypertext links, and accessible via the internet.