No. 681Ages 11 to 14
Inside an Atom
The protons, neutrons and electrons that build every atom, with a labelled diagram and a worked example.
No. 682Ages 11 to 14
Elements, Compounds and Mixtures
Tell the three pure and impure substances apart by looking at their particles, then sort real examples.
No. 683Ages 11 to 14
The Particle Model
How particles are arranged in solids, liquids and gases, plus every change of state between them.
No. 684Ages 11 to 14
Reading Chemical Formulae
Read subscripts, brackets and big numbers to count exactly how many atoms are in any formula.
No. 685Ages 11 to 14
Atoms and Molecules
The difference between atoms and molecules, the seven diatomic elements, and molecules of compounds.
No. 686Ages 11 to 14
Chemical Reactions
Reactants become products, atoms rearrange and mass is conserved, shown by burning magnesium.
No. 687Ages 11 to 14
Acids and Alkalis
The pH scale from 0 to 14, the indicators that measure it, and how neutralisation works.
No. 688Ages 11 to 14
Separating Mixtures
Filtration, crystallisation, distillation and chromatography, with the mixture each one is made for.
Type or write inNo. 689Ages 11 to 14
Word Equations
Learn to write reactions in words, then complete four equations of your own. Answer key included.
Type or write inNo. 690Ages 11 to 14
Atoms Quiz
Ten write-in questions covering the whole pack, from subatomic particles to pH, with a full answer key.