simple science


Simple Science

Value of Fire
General Effect of Heat
Amount of Expansion and Contraction
Advantages and Disadvantages of Expansion and Contraction
The Thermometer
Some Uses of a Thermometer
Methods of Heating Buildings
Hot water Heating
Fresh Air
Winds and Currents
Temperature not a Measure of the Amount of Heat Present
The Unit of Heat
Some Substances Heat more readily than Others
Specific Heat
Water and Weather
Sources of Heat
The Amount of Heat Absorbed
General Truths
Practical Application Heat
Rain Snow Frost Dew
How Chills are Caused
Weather Forecasts
Heat Needed to Melt Substances
Molding of Glass and Forging of Iron
Strange Behavior of Water
Heat Necessary to Dissolve a Substance
Why Things Burn
How to Prepare Oxygen
Safety Matches
Some Unfamiliar Forms of Burning
How to Breathe
Cause of Mouth Breathing
How to Build a Fire
Spontaneous Combustion
The Treatment of Burns
Carbon Dioxide
Danger of Carbon Dioxide
What Becomes of the Carbon Dioxide
How to Obtain Carbon Dioxide
A Commercial Use of Carbon Dioxide
How Charcoal is Made
Matter and Energy
The Body as a Machine
Fuel Value
Varied Diet
Our Bodies
Why we eat so Much
The Different Foods
The Carbohydrates
The Fats
The Proteids
Mistakes in Buying
Destructive Action of Water
Constructive Action of Water
Relation of Water to Human Life
Water and its Dangers
Methods of Purification
The Source of Water
The Composition of Water 1
The Composition of Water 2
How to prepare Hydrogen
The Instability of the Air
The Character of the Air
Air Pressure
The Barometer
A Portable Barometer
The Weight of the Air
Use of the Barometer
Isobaric and Isothermal Lines
Weather Maps
Components of the Air
Bicycle Tires
The Danger of Compression
How Pressure is Measured in Buildings
The Gas Meter
The Relation between Pressure and Volume
Heat due to Compression
Cooling by Expansion
Unexpected Transformations
Artificial Ice
Very Small Objects
Journeys Made by Molecules
The Companions of Molecules
Simple Molecules
What Light Does for Us
The Candle
Fading Illumination
Money Value of Light
How Light Travels
Good and Bad Mirrors
The Path of Light
Why the Image seems to be behind the Mirror
Why Objects are Visible
Bent Rays of Light
How Refraction Deceives us
Uses of Refraction
The Window Pane
Chandelier Crystals and Prisms
The Shape and Material of a Lens
How Lenses Form Images
The Value of Lenses
The Human Eye
Farsightedness and Nearsightedness
Headache and Eyes
Eye Strain
The Magic of the Sun
The Magic Wand in Photography
The Camera
Light and Shade
The Perfect Photograph
Light and Disease
The Rainbow
How to produce Rainbow Colors
Sunlight or White Light
Reflected Light
How and Why Colors Change
Pure Simple Colors Things as they Seem
Colors not as they Seem Compound Colors
The Essential Colors
Color Blindness
Most bodies which glow and give out light are hot
Red a Warm Color
The Energy of the Sun
How Light and Heat Travel from the Sun to Us
How Heat and Light Differ
Methods of illumination
Artificial Candle Lighting
The Oil Lamp
Gas Burners and Gas Mantles
Gas for Cooking
By products of Coal Gas
Natural Gas
Labor saving Devices
When do we Work
The Lever
Applications of the Lever
The Wheelbarrow as a Lever
The Inclined Plane
Railroads and Highways
The Wedge
The Screw
Movable Pulleys
Combination of Pulleys
Practical Application
Wheel and Axle
Windlass Cogwheels Application
Compound Machines
Measurement of Work
The Power or the Speed with which Work is Done
Waste Work and Efficient Work
Man's Strength not Sufficient for Machines
Power of water
Water Wheels
How much is a Stream Worth
Quantity of Water Furnished by a River
The Principle of the Windmill
Steam as a Working Power
Steam Engines
Gas Engines
Methods of pumping
The Air as Man's Servant
The Common Pump or Lifting Pump
The Force Pump
Irrigation and Drainage
Camping Its Pleasures and its Dangers
A Cheap Well for Campers
Our Summer Vacation
Pumps which Compress Air
The Bicycle Pump
How a Man works under Water
Combination of Pumps
Water supply
Two Possibilities
The Pressure of Water
Why the Water Supply is not uniform in All Parts of the City
Why Water does not always flow from a Faucet
The Cost of Water
The Bursting of Dams and Reservoirs
The Relation of Forests to the Water Supply
Neutral Substances
Why Soap Cleans
Washing Powders
To remove Stains from Cloth
Baking Soda
Baking Powders
Soda Mints
Baking powder
The Bread of Antiquity
The Cause of Fermentation
Where does Yeast come From
An Artificial Bleaching Agent
Bleaching Powder
Commercial Bleaching
Wool and Silk Bleaching
Why the Color Returns
The Removal of Stains
Plants as a Source of Dyes
Wool and Cotton Dyeing
The Selection of Dyes
Indirect Dyeing
How Variety of Color is Secured
Color Designs in Cloth
Personal Disinfection
Chemicals as Food Preservatives
The Preservation of Wood and Metal
Stimulants and Narcotics
The Cost of Health
The Uncounted Cost
The Right Use of Narcotics
Patent Medicines Cough Sirups
Soothing Sirups; Soft Drinks
Headache Powders
Other Deceptions
Plant Food
The Poverty of the Soil
Bacteria as Nitrogen Gatherers
Artificial Fertilizers
The Senses
How Sound is Produced
Sound is carried by Matter
How Sound is transmitted through Air
Why Sound dies away with Distance
Velocity of Sound
Sound Waves
How One Sounding Body produces Sound in Another Body
Borrowed Sound
Motion does not always produce Sound
Noise and Music
The Effect of the Rapidity of Motion on the Musical Tone Produced
The Pitch of a Note
The Musical Scale
Musical instruments
Stringed Instruments
Strings and their Tones
The Freedom of a String
The Value of Overtones
The Individuality of Instruments
The Kinds of Stringed Instruments
Wind Instruments
How the Various Pitches are Produced
The Percussion Instruments
The Ear
The Structure of the Ear
Care of the Ear
The Phonograph
Electricity as first Obtained by Man
Experiments which grew out of the Voltaic Cell
Electrical Terms
The Disadvantage of a Simple Cell
The Gravity Cell
Dry Cells
A Battery of Cells
Electric Stoves
Electric Lights
Welding of Metals
Chemical Effects
How Pure Metal is obtained from Ore
An Electric Current acts like a Magnet
The Electric Bell
The Push Button
How Electricity may be lost to Use
The Telegraph
The Earth an Important Part of a Telegraphic System
Advances in Telegraphy
The Attractive Power of a Magnet
The Extent of Magnetic Attraction
The Influence of Magnets upon Each Other
Magnetic Properties of an Electric Current
The Principle of the Motor
Mechanical Reversal of the Current
The Practical Motor
Danger of an Oversupply of Current
How Current is Measured
Voltage and Voltmeters
Current Voltage Resistance
The Dynamo 1
A New Source of Electricity
A Test of the Preceding Statement
The Dynamo 2
Powerful Dynamos
The Telephone
Cost of Electric Power
More ...

Test your English Language
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Rules to play Baseball
Rules to play Beach Volleyball
Healthy Nose
Benefits of Broccoli
Globe Dial
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Most Sinister Childhood Villains Of All Time
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