Population dynamics in Grade 6 Science comes into focus as students investigate how environmental changes, population growth and decline, and population bottlenecks affect living populations over time. This resource connects population data with biological evolution, helping students compare changing populations and explain how genetic diversity can shift across generations.

Designed around the topic of biological evolution, unity and diversity, this population dynamics learning stations activity gives students a structured way to examine population change and its effects. Students work with population counts, percentages and trends to compare growth, decline and recovery, while considering how environmental conditions and demographic factors influence population size.

Explore population change and genetic diversity

The activity focuses on the relationship between population size and evolutionary change. Students examine how a population bottleneck can reduce genetic diversity and change the frequency of traits across generations. These concepts help connect observable population trends with changes in the variation found within a population.

Rather than treating population growth as an isolated calculation, the resource brings together numerical evidence and biological reasoning. Students can practise interpreting population information, comparing patterns over time and explaining why changes in population size may matter for genetic diversity.

What is included

• Station cards: Provide the activity material students use as they work through the learning stations.
• Station recording sheet: Gives students a place to record information and observations as they visit each station.
• Station wrap-up: Provides a concluding activity to bring the station work together.
• Answer Key PDF with Teacher Guide: Includes the answer key and teacher guidance organised around Learning Objectives, Teaching Tips, Discussion Questions and Common Mistakes.

Practical classroom use

Set up the station cards around the classroom and have small groups begin at different stations. Students read the cards and record their work on their own recording sheets, rotating to the next station after the allotted time until all stations have been visited. Finish with a class discussion comparing population patterns and considering how environmental changes, demographic factors and bottlenecks can affect populations.

The format can support a science lesson on biological evolution, a collaborative classroom activity or a review of population change and genetic diversity. The included Teacher Guide provides prompts and teaching support for preparing the activity, guiding discussion and addressing common misconceptions.

Curriculum connection

The resource lists NGSS standard MS-LS4-6. Teachers can use the population data and evolutionary concepts as part of instruction on biological evolution, unity and diversity, while checking the specific lesson tasks against their intended standard coverage.

For Grade 6 science teachers, this resource brings population counts, percentages, growth and decline trends, population recovery and bottleneck effects into one classroom activity. It gives students a focused opportunity to connect evidence about changing populations with the biological concept of genetic diversity.