Titration pH Curves
Changes in pH can be used to study acid-base neutralisation reactions. Here is a companion worksheet with an answer key!
NUS AI Centre Learning Journey
NUS AI Centre (AICET) organised a learning journey to inspire educators to use EdTech well.
Generative AI Learning Penalty
Are students using AI as personalised tutors or homework slaves? What are the implications? A June 2026 research offers thoughtful insights.
National Day Quiz
How well do we know Singapore? Work in teams to achieve the highest score possible!
Chemical Formula Games
Writing formulae correctly underpins almost everything in Chemistry. Discover three games which help us to learn with great joy!
How to Create Molecular Models Using Claude
Keen to create molecular models? Find out how to do so here!
Experimental Design
What are variables (independent, dependent & controlled)? How do we set up fair experiments?
Kinetic Particle Theory
Interact with this simulation to see how particles move at different temperatures and with different masses!
Cell Structure & Organisation
Learn more about the levels of organisation, cell structures and differences between plant cells and animal cells!
How to Embed HTML5 Activities on Google Site
Learn the steps needed to embed your HTML5 (and EdTechSims) activities on your Google Sites.
Population Pyramids
How do populations of various countries differ? What challenges does each face?
Heating & Cooling Curves
Learn more about the heating and cooling curves of water.
Diffusion
Discover what diffusion is and some factors affecting how fast it takes place!
Surface Area : Volume Ratio
How do the surface area to volume ratio of cells, tissues and organs affect their functions?
Fractions Battle
How accurately and quickly can you tell which fraction is larger or smaller? Test yourself in this challenge!
Potato Strips In Solutions
Observe the changes when potato strips are placed in solutions with different water potential!
Active Transport
Does active transport involve the movement of particles up or down the concentration gradient? Find out here!
Food Consumption Comparator
What are the differences in food consumption trends between developed countries and less developed countries?
Diverse Group Generator
Easily generate student groups which are as diverse as possible here.
Diffusion, Osmosis & Active Transport
What are the differences between these transport processes and how do they sustain life?
Organic & Inorganic Farming
What are some key differences between these two farming methods? What choices would you make if you were to have your own farm?
Decimal Builder
How quickly can you build the smallest decimals, largest decimals and decimals in between given values?
Number Lines
Which is larger and which, smaller? Are you able to compare numbers on number lines?
Carbohydrates, Fats & Proteins
What elements are found in these food classes? What are their roles and how can we test for them?
Simple Harmonic Motion
Explore this concept through synchronised circular motion, displacement-time graphs and a spring-mass system.
Food Tests Lab
How to test for the presence of reducing sugars, starch, fats and proteins in food samples?
Paper Chromatography
How can we carry out a paper chromatography experiment and analyse the results?
Models of Enzyme Action
What are the differences between the lock-and-key model and the induced fit model?
Enzyme Inhibition
Learn more about competitive and non-competitive inhibition of enzymes!
Substrate Concentration On Enzyme Kinetics
Discover the impact of substrate concentration on enzyme kinetics through a closer look at Michaelis-Menten graphs.
Verb Forms Quiz
Challenge your speed in giving the correct verb forms (present tense, past tense, continuous form and past participle)!
What Kind Of Tourist Are You?
What are some reasons we travel? What kind of tourists are we?
Stalin’s Soviet Union
Understand the multiple factors that led to Stalin’s rise to power. Analyse the causes and consequences of Stalin’s policies.
Human Digestive System
How quickly can you recall key terms and drag them into their blanks?
Ions Matchmaker
Are you able to match positive ions with negative ions to come up with the chemical formulae of ionic compounds?
Stratovolcanoes & Shield Volcanoes
What are some characteristics of stratovolcanoes & shield volcanoes?
Constructive & Destructive Waves
Learn more about waves and how they shape natural landforms and human activities!
Tense Timeline
How well do you know your tenses? Use this timeline to help you visualise a sequence of events!
Formula Feast
How accurately and quickly can you put together chemical formulae and match them to their names? Test yourself here!
Formula Writing Challenge
Test your skill and speed in writing chemical formulae!
Balancing Equations
Discover how to balance equations as well as how to identify limiting and excess reagents!
Quadratic Equations
How quickly and accurately can you expand quadratic expressions to find the missing numbers?
Indices Challenge
Solve these expressions involving indices with great velocity and accuracy!
Equation Auto-Balancer
Uncertain if your equation is balanced? Check it out here!
Algebra Equation Quiz
Challenge yourself to solve algebraic equations with great accuracy and speed!
Balancing Equations Challenge
How fast can we balance our chemical equations?
Mole Concept
What is a mole? Does it dig into the ground or quiver on the face? Or does it help us in counting how many particles there are?
The Chaos Theory
Have you ever heard of the idea that the flap of a butterfly wing here can cause a tornado elsewhere? Learn more about the chaos theory!
Korean War Decision Simulator
What would you do if you were Kim Il Sung, Joseph Stalin, Harry S. Truman or Syngman Rhee?
Conservation of Energy
Under what conditions is the sum of energy conserved? Find out here!
Creating HTML5 Activities & Adding Them to SLS
Learn how to create HTML5 activities and integrate them with existing Student Learning Space (SLS) lessons here.
Pupil Reflex In Bright & Dim Lighting
Look at how the pupil changes size as light intensity varies!
Infectious Diseases
Use this simulation to model the spread of infectious diseases such as AIDS, influenza and pneumococcal disease!
Rotational Kinematics
Learn more about angular displacement, angular velocity and angular momentum!
