All articles by Declan Fleming
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Exhibition chemistryDemonstrate concentration and density with a transition metal colloid cell
Boost 11–14 learners’ understanding of diffusion and transition metal chemistry
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Exhibition chemistryHighlight transition metal chemistry with an oscillating luminol reaction
Light up your 16–18 learners’ interest in catalysis and transition metal properties with this chemiluminescent reaction
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Exhibition chemistryReversible reactions with transition metal complexes
Use this copper-based, colour-changing demonstration to introduce your 14–16 learners to reversible reactions
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Exhibition chemistryDemonstrate changes of state using volume differences
Use this demonstration to reinforce the differences between states of matter with your 11–14 learners
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Exhibition chemistryCreating a supersaturated gas evolving oscillator
Use this fizzy practical for a kinetic and thermodynamic showdown in class
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Exhibition chemistryDemonstrate intermolecular forces with colourful separations
Layer intermolecular interactions into your practical lessons with these chromatic experiments
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Exhibition chemistryBrew up interest in redox with this quick reduction
Use this fresh, fast approach to demonstrate the colourful oxidation states of vanadium
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Exhibition chemistryDemonstrating the chameleon redox reaction with a lollipop
Give your students a sweet treat with this colourful manganate(VII) reaction demo
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Exhibition chemistryDemonstrating the importance of surface area to rates of reaction
Use a combustible powder demo to engage students and teach them about safety in the lab
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Exhibition chemistryThe production and combustion of nitrocellulose
Get your students engaged in a flash with this impressive demo
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Exhibition chemistryDemonstrating the heating curve of tert-butanol
Use this to effectively show your students two changes of state in one experiment
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Exhibition chemistryThe reaction between sodium and chlorine
Use this to demonstrate this classic and spectacular chemistry experiment
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Exhibition chemistryShocking revelations 2: neutralisation reactions
Use this experiment to demonstrate the different behaviours of weak and strong acids
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Exhibition chemistryShocking revelations: a conductometric titration
Strengthen students’ mental models of particles reacting in solution
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Exhibition chemistryThe movement of ions: bringing electrolysis to life
Demonstrate the movement of positive and negative ions with a simpler, safer version of this classic demo
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Exhibition chemistryDynamite soap: The combustion of stoichiometric hydrogen–oxygen mixtures
Add this quick demo to the end of a lesson on squeaky pops to show the dramatic impact of mixing chemicals in the correct proportions
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Exhibition chemistryDemonstrating the diffusion of ammonia and hydrogen chloride
Revisiting and refining a classic diffusion demo with Declan Fleming
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Exhibition chemistryThe gallium beating heart
Explore redox chemistry with this safer alternative to the mercury beating heart demo
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Exhibition chemistryPyrophoric silanes
Use the impressive reaction of pyrophoric silanes in air to explore a range of chemistry topics with your students
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Exhibition chemistryThe screaming jelly baby
Demonstrate energy release in action with this spectacular experiment