English National Curriculum - Science Science

6. Explain how materials move between cells

Mission Objectives

Define diffusion

Give examples of diffusion in plants and animals

Investigate the effect of temperature on the rate of diffusion

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Keywords

Words and meanings to learn

high concentration

a large number of particles in a small space

low concentration

a small number of particles in a large space

diffusion

the movement of atoms or molecules from an area of higher concentration to an area of lower concentration

substance

a chemical or material

rate

the speed at which an event occurs

This lesson has been written by

Dr Shannon Weldon

Shannon started her journey with Developing Experts by completing PHD placement while studying for her Doctorate in Developmental Biology at the University of East Anglia. Shannon has since joined the team full-time as a Project Manager working with the company's industry partners. Shannon knows a lot about chickens!

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: 250ml beaker, teabags, paper, marker pen, tripod, gauze, bunsen burner, heat proof mat, thermometer, stopwatch and the handout.

Core Handout: Diffusion investigation sheet.

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