Math and Science Home
K-12 STEM EDUCATIONAL ACTIVITIES -- NGSS ACTIVITIES
Mass Volume Density
Measuring Mass using a triple beam balance
What is the difference between mass and weight?
Measuring volume using a graduated cylinder
How to calculate the density of a solid
How to calculate the density of a liquid
Units and Measurements
Mass Volume Density Assessment Questions (Level 1)
Mass Volume Density Assessment Questions (Level 2)
Scientific Notation and Units and Measurement
Introduction to Scientific Notation
Scientific Notation Generator
How to Multiply in Scientific Notation
How to Divide in Scientific Notation
Word Problems using Scientific Notation
Units of Measurement
Gates Project -- Central Park, New York City -- Art -- Mathematics -- Technology
Force --Work -- and Energy
Speed, Velocity and Acceleration -- Graphing Velocity and Acceleration
What is Force -- How to Measure Force, What is Friction -- Assessment Activities
What is a Vector? What is a Scalar Quantity? Test Your Understanding
What are Newtons Three Laws of Motion?
Introduction to Energy -Types of Energy -- Sources of Energy
Definitions for Work, Energy and Power-- What is the Work-Energy Principle
Gravity, Mass and Weight
Energy in Motion
What is heat? What is temperature? How is heat transferred?
Why do metals conduction electricity and heat? What metals conduct the best?
How does a battery work? Chemical Reactions in Batteries. Volta's first battery.
Properties of Waves
What is the difference between longitudinal and transverse waves?
What are electromagnetic waves?
What are seismic waves? What are the different types of seismic waves?
Electricity, Magnetism and Electromagnetism
Electricity and Magnetism Home
Coulombs Law and Inverse Square Law
The Flow of Electricity
The Nature of Magnets
Earth as a Magnet
Magnetism in Action
Magnetism from Electricity
Electricity from Magnetism
How do Transformers Work?
Ohms Law Lab
Magnetic Forces Lab
Why Metals Conduct Electricity
How does a Battery Work
How does an Electric Motor Work
Science and Technology of Fluids
What are fluids? What is Rheology? Static and Dynamics of Fluids
What is pressure? What is Atmospheric Pressure? What is Vapor Pressure?
What is Hydrostatic pressure --What is the relation between fluid pressure and depth
What is surface tension? What is capillary action? Why is capillary action important to plants?
Pascal's principle and Hydraulics. How do hydraulics work?
What is the difference between adhesion and cohesion?
What is viscosity? How is viscosity measured? What is the difference between Newtonian and Non-Newtonian Fluids?
What is humidity? What is relative humidity? What is a psychrometer? How is humidity measured?
Who was Archimedes? What is buoyancy? What is the formula for Archimedes Principle?
What is Bernoulli's Principle? What are some factors that enter in lift of an airplane?
Food Technology -- How does starch and other food thickening agents work?
Solutions Suspension Colloids and Food Technology
Solutions -- What are solutions, examples of solutions, strength of solutions, what is the universal solvent?
What are suspensions, emulsions and colloids. Examples of colloids.
Summary Sheet for Solutions, Suspensions and Colloids
Student Assessment for Solutions, Suspensions and Colloids
What are Hydrocolloids?
Hydrocolloids in Cooking and the Food Industry
The Incline Plane
The Wheel and Axle
What is Mechanical Advantage
Atomic and Chemical Properties
What is the Structure of the Atom? How are electrons organized around the nucleus?
What are atomic orbitals? 3D interactive images of atomic orbitals using Jmol.
What are elements? What is the Periodic Table of Elements?
Chemical Bonding -- Ionic, Covalent and Hydrogen Bonds
What is a Chemical Formula?
Hydrogen Bonds in Water
What is a Physical Change?
What is a Chemical Change?
What is Ph?
Assessment -- Chemical OR Physical Change
What are the 4 states of Matter? What is the 5th State of Matter?
K-12 Molecular Modeling Activity -- A STEM Activity
K-12 Molecular Modeling Part II -- Difference between water and ice -- Difference between graphite and diamond
Properties of Carbon
The Carbon Atom
The Carbon Molecule
Carbon the Element
The Graphene Molecule -- A 3D Perspective using Jsmol
What are Fullerenes? What is the diameter of a Buckyball?
Why is the fullerene molecule and similar structures the cornerstone of nanotechnology?
The Carbon Molecule 3D Perspectives using Jmol
Simple Carbon Compounds
Why is Diamond hard and Graphite soft if both are pure carbon?
Why is Carbon Monoxide so dangerous?
What is the difference between pure carbon compounds -- Carbyne and Graphene?
What is Soap and how does it work?
What is the difference between water and ice?
What are the basic properties of water and ice?
Why is water such a good solvent?
Can ice evaporate? What is sublimation?
What is the structure of water and ice?
Why does ice float?
What is a water dimer?
Water molecules in motion...
What is the human genome and how big is it?
What is the difference between sexual and asexual reproduction?
How are living things classified?
Where is food digested?
What is gluten, gluten sensitivity and celiac disease?
How do drugs work?
Why do carcinogens cause cancer? A molecular view.
What are the components of blood?
How does the heart work?
What is the path blood takes through the circulatory system?
Layers of the Earth -- What are the different types of Seismic Waves
What causes precipitation? What causes it to rain or snow? What causes dew on the ground?
What is the Coriolis Effect?
What are seismic waves? What are the different types of seismic waves?
What is Humidity? How is Humidity Measured?
What causes precipitation --( rain or snow)?
Where is the Earth in the Solar System? Why is there life on earth?
Science behind el Nino and la Nina
Alternative Sources of Energy
Introduction -- What are the different types of energy? Kinetic vs. Potential Energy
Hydropower as Fuel
Biomass for Fuel
What is nanotechnology?
Nanotechnology Home Page
Atomic Force Microscope
Nanotechnology Journals and Review Articles
What is a Nanometer?
What is a Nanocar?
Scanning Tunneling Microscope
The carbon molecule
Buckyball -- Fullerene
Robots -- History and Development
What is Robotics
Types of Robots
Ways to Use Robots
What is Cybernetics
NASA Robot Links
Robot Assisted Heart Surgery
MathMol -- Mathematics and Molecules
MathMol Home Page
-- 2022 Version
Measuring length and distance at the molecular level
Geometry of 2- Dimensions
Geometry of 3-Dimensions
: Introduction to Molecular Modeling using Jsmol
The Geometry of Crystals
Summary Sheet by Students
What is the Geometry of the Methane Molecule
Geometry of the Crystal Structure of Ice
Geometry of the Benzene Molecule
Integrated Math and Science Labs-- Mathematical Relations and Science Principles
About these labs: Mathematical relationships in science
What are the different types of mathematical relationships?
What is the relationship between how much a spring stretches and the force pulling on the spring? --The Spring Constant
What is the relationship between the period of a pendulum and the length of the string of the pendulum?
What is the relationship between the mass of a ball and its volume assuming a constant density?
What is the relationship between the volume of a liquid and its density.
What is the relationship between the intensity of a beam of light and the distance from a light source?
What is a the relationship between how the distance travels and the time in travel for an accelerating object?
What is the relationship between how much light passes through a Polaroid filter and the angle the filter is rotated?
What is the relationship between the decay of radioactive material and the time allowed for the decay?
What is the relationship between current, voltage when there is a constant resistance in an electric circuit.
What is the relationship between how far water squirts out of a hole in a container and the depth of the hole beneath the water?
What is the relationship between the distance between two magnets and the force between them? Attractive and Repulsive Forces
What is the relationship between the height that a ball bounces and the number of times it bounces? --Damping Motion
What is the relationship between the volume of a boat and the weight it can hold?
Beyond the Earth
Introduction to the Solar System
An Overview of the Solar System -- Galileo's telescope, how was the solar system formed?
The Sun -- how big is the sun? What are sunspots? How hot is the sun? What is solar weather?
Mercury -- How big is mercury? What is the surface of mercury like?
Venus -- How big is the planet Venus? What is the surface of Venus like?
The Earths Moon -- What is the distance from the Earth to the Moon? What is the surface of the moon like?
Mars -- How big is mars? What is the surface of mars like?
Asteroid Belt -- How many are there? What are they named after?
The planet Jupiter -- How big is Jupiter? What are the moons of Jupiter? How much gravity does Jupiter have?
Saturn -- How big is Saturn? What are the rings of Saturn... What are the moons of Saturn like?
The planet Uranus -- How big is it? Does it have rings? How many moons does Uranus have?
Neptune --How big is Neptune? What is the surface of Neptune like?
Pluto -- Is Pluto really a planet? How big is Pluto? Does Pluto have any moons?
What is a comet? Where are they in the Solar System?
What is the Kuiper Belt? How many objects are in the Kuiper belt and how big are they?
What is the Oort Cloud? Where is the Oort cloud and how did it start?
How big is the Milky Way? Where is the Earth in the Milky Way Galaxy?
What is Helium-3 and why is it so important?
What is Dark Energy and Dark Matter?
Life of a Star
What are black holes, wormholes and white holes?
Videos of black holes and worm holes
About Forensic Science
Genetic DNA Fingerprinting
Science of Fingerprinting
DNA Forensic Science -- Genome Project
Taking Legible Fingerprints
Forensic Science Technician
Edinformatics Science and Math Tests
About these online TIMSS Practice Math and Science Test
TIMSS Grade 3-4 Math Test
TIMSS Grade 3-4 Science Test
TIMSS Grade 7-8 Math Test
TIMSS Grade 7-8 Science Test
TIMSS Grade 12 Advanced Math Test
TIMSS Grade 12 Math and Science
Edinformatics Science Challenge Tests
About the Edinformatics Science Challenge Tests
Part I-- Knowledge and Concepts
Part II- Reasoning and Analysis
Related Topics from Edinformatics
Greatest Thinkers -- Greatest Minds
What were the Greatest Inventions of All Time?
Creative Ideas in Science Projects
MathMol Interactive Textbook
Science and Technology of Food and Cooking