English National Curriculum - Science Science
Mission Objectives
Explain the term "filtration"
Describe under which conditions a mixture can be separated by filtration
Build a simple water filter
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Words and meanings to learn
filtration
a process used to separate solids from liquids or gases by passing the mixture through a filter medium that allows the liquid or gas to pass through, but retains the solid particles
filter medium
a porous material such as a filter paper, a ceramic material or a cloth
filter paper
a paper-based barrier used to separate solid substances from liquids or gases
filtrate
the liquid or gas that passes through the filter medium and is collected on the other side of the filter; it is composed of the liquid or gas that was present in the mixture being filtered, but without the solid particles that were retained by the filter
residue
the solid particles that remain on the filter after filtration; it is composed of the solid particles that were present in the mixture being filtered, and is typically collected for further analysis or disposal
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!
Peter Klappa studied Biology (BSc Hons and MSc) at the Ludwigs-Maximilian University in Munich, Germany, where he also obtained his PhD in molecular and cellular biology. He is a National Teaching Fellow and a Senior Fellow of the Higher Education Academy. As a trained Biology and Chemistry teacher, Peter has taught sciences for over 30 years, both at pre- and post-entry to university. For his excellence in teaching, Peter has received numerous awards and prizes and was nominated for the Teacher of the Year award by the Higher Education Academy in 2015 and 2019.
Resources: Two litre plastic bottle; scissors; cotton wools; activated carbon; sand; gravel; beaker; jug; water; soil and small solid pieces (e.g. bits of plastic).
Core Handout: Instructions to build a water filter.
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