English National Curriculum - Science
Mission Objectives
Carry out a practical investigating the effect of sugar concentration on osmosis in plant tissue
Calculate percentage gain/loss in mass of plant tissue
Plot and interpret graphs of sugar concentration vs percentage change
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Words and meanings to learn
data collection
The process of gathering and measuring information during an experiment.
osmosis
The movement of water molecules through a semi-permeable membrane from an area of lower solute concentration to an area of higher solute concentration.
osmotic point
the concentration of solution at which there is no net movement of water into or out of the cell.
hypertonic
Hypertonic solutions have a higher concentration of solutes compared to another solution, resulting in water moving out of cells placed in such solutions.
hypotonic
Hypotonic solution has a lower concentration of solutes compared to another solution, causing cells to swell as water flows into them by osmosis.
Samantha is an accomplished science educator whose current work centres on curriculum design and professional development, supporting teachers to deliver high-quality science education through evidence-informed approaches. She is a former Head of Chemistry and Sixth Form Tutor with extensive Key Stage 4 and 5 experience, and has worked as an AQA examiner, giving her valuable insight into assessment standards and what students need to succeed.
Samantha has written the complete KS4 Science curriculum, fully aligned with the AQA GCSE Science: Trilogy specification. Covering biology, chemistry and physics, the curriculum is carefully sequenced so that students build knowledge cumulatively and see clear connections between concepts across the three sciences. Drawing on her experience as an examiner and on research into effective teaching, she has designed it to embed retrieval practice, clear explanation, worked examples and the required practicals throughout, preparing students for the demands of the GCSE exams. Grounded in the realities of the classroom, the curriculum is rigorous for students and manageable for busy teachers.
In her spare time, Samantha enjoys playing the accordion with her local orchestra and has recently taken up cricket.
Potato cylinders or discs
Sugar solutions (0.0M to 1.0M)
Beakers, test tubes, labels
Balances, rulers, paper towels
Data collection sheets
Graph paper or software (Excel/Google Sheets)
Expert film
Mission assignment film
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