China Primary School Science - English Version Science

4. Explain how toxic material accumulates in ecosystems

Mission Objectives

Describe the process of bioaccumulation

Explain ways humans can cause toxic materials to accumulate in ecosystems

Use a model to demonstrate bioaccumulation

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Lesson Resources

Lesson Plan

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Keywords

Words and meanings to learn

bioaccumulation

an increase in the concentration of certain chemicals, such as pesticides, in organisms that live in areas contaminated by those compounds

disruption

disturbance or problems that interrupt an event, activity, or process

mercury

a metal that is liquid at room temperature (element number 80)

toxic

a poisonous material which can cause harm to a living thing

DDT

a pesticide (short for dichlorodiphenyltrichloroethane)

This lesson has been written by

Rebecca Willerton

Rebecca studied Psychology at the University of York before working in a variety of roles - in both the UK and internationally - where she assisted individuals with neurodegenerative and developmental conditions. She then completed her science teacher training with the National STEM centre, Royal Society of Chemistry and the Association for Science Education. Rebecca teaches biology and chemistry at Key Stage 4 and general science at Key Stage 3, and has also ran neuroscience and eco clubs at her school. 

Required Resources

Resources: The handout, scissors and backing card. 

Core Handout: A series of games and activities on bioaccumulation. 

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