Fire: Flames and Chemical Change
These downloadable videos and animations are part of the multimedia package Stuff and Substance, developed by the Gatsby Science Enhancement Programme (SEP). They can be used to develop ideas relating to flames, from hydrogen to candle wax. A flame is a chemical reaction between two substances in a gaseous mixture. Normally,…
Rate of Dissolving
These downloadable videos and animations are part of the multimedia package Stuff and Substance, developed by the Gatsby Science Enhancement Programme (SEP). They can be used to develop ideas relating to the factors which affect the rate of dissolving and the particle model explanation. The rate of dissolving depends on the surface…
Separating Mixtures
These downloadable videos and animations are part of the multimedia package Stuff and Substance, developed by the Gatsby Science Enhancement Programme (SEP). They can be used to develop understanding of filtration, evaporation and distillation as methods to separate various types of mixtures. Understanding filtering rests on…
Fire: Combustion or Decomposition?
These downloadable videos and animations are part of the multimedia package Stuff and Substance, developed by the Gatsby Science Enhancement Programme (SEP). They can be used to develop ideas relating to the distinction between combustion and decomposition in the context of ‘burning’ materials. Combustion is a reaction…
Substances Changing: Dehydration
These downloadable videos and animations are part of the multimedia package Stuff and Substance, developed by the Gatsby Science Enhancement Programme (SEP). They can be used to develop the idea that some crystals incorporate water molecules within their structures. Whether the change from hydrated copper sulfate to anhydrous…
Substances Changing: Decomposition
These downloadable videos and animations are part of the multimedia package Stuff and Substance, developed by the Gatsby Science Enhancement Programme (SEP). They can be used to develop the idea of chemical change by showing that in some reactions substances decompose. Chemical changes often involve two substances reacting together…
Substances Changing: Reaction in Solution
These downloadable videos and animations are part of the multimedia package Stuff and Substance, developed by the Gatsby Science Enhancement Programme (SEP). They can be used to develop the idea of chemical change by showing reactions that takes place between substances in solution. Many chemical reactions involve solutions and…
Substances Changing: Reaction on Heating
These downloadable videos and animations are part of the multimedia package Stuff and Substance, developed by the Gatsby Science Enhancement Programme (SEP). They can be used to develop the idea of chemical change by showing a reaction that takes place on heating to a higher temperature. These resources cover the reaction between…
Substances Changing: Reaction at Room Temperature
These downloadable videos and animations are part of the multimedia package Stuff and Substance, developed by the Gatsby Science Enhancement Programme (SEP). They can be used to develop the idea of chemical change by showing reactions that take place spontaneously at room temperature. These resources use novel approaches to cover…
Density
These downloadable animations are part of the multimedia package Stuff and Substance, developed by the Gatsby Science Enhancement Programme (SEP). They can be used to introduce density as a property to identify substances. The first animation introduces the idea of density by comparing the masses of equal sized blocks of different…
Substances and the Three States
These downloadable animations are part of the multimedia package Stuff and Substance, developed by the Gatsby Science Enhancement Programme (SEP). They can be used to emphasize that a substance can be in any of the three states and there is nothing special about room temperature states. The state of a sample of a substance depends…
The Gas State
These downloadable videos and animations are part of the multimedia package Stuff and Substance, developed by the Gatsby Science Enhancement Programme (SEP). They can be used to predict the possibility of the gas state with the particle model and understand that ‘gases’ are substances which happen to have boiling points…
Particle Theory
These downloadable videos and animations are part of the multimedia package Stuff and Substance, developed by the Gatsby Science Enhancement Programme (SEP). They can be used to introduce a particle model to explain why a substance can exist in both the solid and liquid states and why different substances have different melting points. The…
Melting and Freezing
These downloadable videos and animations are part of the multimedia package Stuff and Substance, developed by the Gatsby Science Enhancement Programme (SEP). They can be used to develop the idea of a substance as a kind of ‘stuff’ which has a definite melting point. The idea of a melting point can be introduced using…
Acids
These downloadable videos and animations are part of the multimedia package Stuff and Substance, developed by the Gatsby Science Enhancement Programme (SEP). They can be used to develop ideas relating to the characteristic reactions of acids. These resources can be used to unpack the complexities surrounding the reactions of…
Formulae
This downloadable animation is part of the multimedia package Stuff and Substance, developed by the Gatsby Science Enhancement Programme (SEP). It can be used to develop ideas relating to the formulae of substances. The formula of a substance tells us which atoms a substance is made from and their relative numbers. For molecular…
Chromatography
These downloadable videos and animations are part of the multimedia package Stuff and Substance, developed by the Gatsby Science Enhancement Programme (SEP). They can be used to develop ideas relating to paper chromatography as a method for separating mixtures. Paper chromatography can be used to separate mixtures of substances…
Rate of Evaporation
These downloadable animations are part of the multimedia package Stuff and Substance, developed by the Gatsby Science Enhancement Programme (SEP). They can be used to develop ideas relating to the factors which affect the rate of evaporation and the particle model explanation. The rate of evaporation (below boiling point) increases…
Diffusion
These downloadable videos and animations are part of the multimedia package Stuff and Substance, developed by the Gatsby Science Enhancement Programme (SEP). They can be used to develop ideas relating to the intrinsic motion of particles and diffusion phenomena involving the liquid and gas states. Due to the intrinsic translational…
Gas and Pressure
These downloadable videos and animations are part of the multimedia package Stuff and Substance, developed by the Gatsby Science Enhancement Programme (SEP). They can be used to develop the ideas relating to the pressure of the gas state and dependence of the boiling point on external pressure. The pressure of a substance in the…
Change of State
These downloadable videos are part of the multimedia package Stuff and Substance, developed by the Gatsby Science Enhancement Programme (SEP). They can be used to introduce ideas of the energy changes which accompany changes of state. Melting requires an energy input for the change from solid to liquid and so the temperature…
Crystals
These downloadable videos and animations are part of the multimedia package Stuff and Substance, developed by the Gatsby Science Enhancement Programme (SEP). They can be used to develop the idea that substances in the solid state usually consist of crystals, even though this is sometimes not obvious. The first animation can be…
Substances Changing: Chemical Change
These downloadable animations are part of the multimedia package Stuff and Substance, developed by the Gatsby Science Enhancement Programme (SEP). They can be used to develop the idea of chemical change as a change of substance. The fact that substances can cease to exist with new ones being created in their place is a very challenging…
Structures
These downloadable animations are part of the multimedia package Stuff and Substance, developed by the Gatsby Science Enhancement Programme (SEP). They can be used to introduce ideas of atoms and types of structures. Which atoms and how they are bonded together defines a particular substance. Many students conflate atoms and…
Solubility
These downloadable videos and animations are part of the multimedia package Stuff and Substance, developed by the Gatsby Science Enhancement Programme (SEP). They can be used to introduce the idea of solubility. Solubility is the amount of a substance that will dissolve in a certain amount of solvent. Students can confuse solubility…
Recognising Dissolving
These downloadable videos and animations are part of the multimedia package Stuff and Substance, developed by the Gatsby Science Enhancement Programme (SEP). They can be used to introduce and explain the phenomenon of dissolving. Dissolving is recognised by the formation of a clear mixture. Before mixing, solutes can be in the…
Condensation of Water
This downloadable video is part of the multimedia package Stuff and Substance, developed by the Gatsby Science Enhancement Programme (SEP). It can be used to show water condensing out of the air. A pure sample of water is normally in the liquid state at room temperature, but water particles can remain separated when mixed with…
Evaporation of Water
These downloadable videos and animations are part of the multimedia package Stuff and Substance, developed by the Gatsby Science Enhancement Programme (SEP). They can be used to distinguish between boiling and evaporation of water below boiling point. Boiling forms a pure sample of water in the gas state (the big bubbles), evaporation…
2/5- Publication year: 2000 - 2009
- Video
Melting Behaviour
These downloadable videos and animations are part of the multimedia package Stuff and Substance, developed by the Gatsby Science Enhancement Programme (SEP). They can be used to develop the idea that mixtures do not have precise melting and boiling points. Using properties that depend on the material only to distinguish between…