stemNRICH consists of 4 applications nodes and 2 mathematics nodes, as shown in the table and diagram below. Although the problems are located in discrete nodes, there is some natural overlap between the various areas, particularly chemistry/biology and physics/engineering.
At a basic level, all problems refer to GCSE level concepts in science and mathematics, although concepts from Alevel mathematics and science will be needed in places.
Most problems come equipped with a solution, hint and teachers' notes pages. There is a wide range of
activitytypes, so you are sure to practise a variety of mathematical skills.
GCSE mathematics concepts 

GCSE chemistry needed
Alevel chemistry needed in places


GCSE biology needed
Alevel biology needed in places

 Numbers
 Algebra, equations and graphs
 Curve fitting and sketching
 Approximations and estimations
 Powers and roots
 Data handling
 Trigonometry
 Units
 Numerical methods, spreadsheets and IT
 General mathematics


 Proportional reasoning
 Dilutions
 Logarithms and pH
 Measurement and estimation
 Reaction kinetics
 Gases
 Bonds and crystals
 Enthalpy
 Moles and molarity
 Advanced mathematics in chemistry
 Articles


 Basic maths in biology
 Measurement and estimation
 Graphs and equations
 Statistics in biology
 Moles and molarity
 Dilutions
 DNA and Genetics
 Shapes
 Advanced mathematics in biology
 Articles






Alevel mathematics needed
Alevel further mathematics needed in places


Alevel physics and mathematics needed
Alevel further mathematics needed in places


Alevel physics and mathematics needed
Alevel further mathematics needed in places

 Rates of change
 Curves
 Calculus
 Differential equations
 Series and expansions
 Powers, roots and logarithms
 Probability and distributions
 Statistics
 Trigonometry
 Geometry and symmetry
 Complex numbers
 Vectors
 Vectors and matrices
 Numerical methods
 General mathematics


 General
 Dynamics
 Gravitation
 Units in physics
 Power, work and energy in physics
 Atoms and particles
 Electricity
 Fluids
 Gas laws and thermodynamics
 Waves and oscillations
 Advanced mathematics in physics
 Articles


 Dynamics
 Structural engineering
 Digital circuits and logic
 Decisions, logistics and control
 Mechanical engineering
 Power, work and energy in engineering
 Fluid mechanics
 Electrical engineering
 Advanced mathematics in engineering
 Articles
