A Bell System
History of Shells
A Chemical Change
A Crystal Radio Set
Heat can Produce Electricity
Fire Must Have Air to Burn
A Door Chime
How Electricity is Made
A Projector (Make a slide projector)
Measuring the Ocean Depths
Measuring Outer Space
How to Develop a Picture
How Traffic Signals Work
Most Liquid contain either Acid or
Inside a Cave, Make stalactite
Operation of a Doorbell buzzer
Parts of an Electric Motor
Minerals: Origin, Distribution
A Water Pump in action
Make an Equatorial Sundial
A Weather Station
Our Solar System
A Cotton Gin
Phases of the Moon
A Wheat Elevator
Cross Section of a volcano
Salt and its Uses
Cross Section of the Earth
Distillation of Water
Expansion and Contracting Of Liquids
The Telegraph Key
Which Metals Conduct Heat best?
Water Supports Heavy Weights
An Electromagnetic Crane
Space Problems in Gravity
Parts of a Windmill
Water is Compound of Hydrogen & Oxygen
Working Principles of a Gasoline Engine
Working of a Telegraph
Machines Made Work Easier
Causes of the Seasons
Bulbs in Series and Parallel
How Hard are Various Types of Rocks and
Erosion - What causes erosion? - How can
soil erosion be prevented?
Air Pollution - causes and cleanup
EarthQuakes and Associated measuring
Collect and Identify minerals and rocks
exposed in local area.
Can Electricity Create Heat?
Make a Volcano Model
Make a Magnet
Design and Make A Model Arm
Make A Bird House
Insect Collection Display
Make a Sundial
Human Eye / Vision Research
Make A Compass
Make Salt Crystals
How a Tooth Decays
Make Sugar Crystals
How Plants Reproduce
Insects: Bad Guys or Good Guys?
Draw A Magnetic Field
The Solar System
Parts of the eye (Make a Model of the
Parts of a Hen's Egg
Parts of a Horse (Display)
Parts of Birds (Display)
Do Plants Grow Toward Light?
What material and objects will be
attracted by magnet?
A Secret Letter with Invisible Ink
What is needed for fire to start?
The Sun, Moon and Earth (Make Model)
The Human Heart, Make Display and
Carbon Dioxide and Man
How to Test Food for Starch?
How Do You Test If The Egg Is Cooked?
Best Packaging for an Egg
Make A Simple Electric Circuit
What Battery Last Longest?
Do Detergent Work Best In Cold or Hot
What causes the milk to spoil?
What makes plants grow upward? Light or
What is the effect of light on a plants
What is the effect of salt water on a
What is the effect of sugar water on a
What is the effect of vinegar on plants?
What is the effect of oil on plants?
What color light is best for a plants
What factors affect the evaporation of
What is the effect of sugar or salt in
the evaporation of water?
Compare two dishwashing liquid to see
which one makes more bubbles.
Identify counterfeit bills
Test Apple Maturity
Test fruits or fruit juices for starch
What is cotton candy?
A Tundra (Make a model)
How metals compare in conducting heat.
How metals compare in density
Egg Floatation (buoyancy)
How does the amount of oxygen affect the
rate of burning?
How do Aeorplanes fly? What is the best
How do waves carry energy
How do magnets work? How are they made?
How Light is Affected passing through
water e.g. viewing objects under water,
formation of rainbows.
What limits the speed of a car, boat, or
Submarine: How to sink? How to float?
Musical instruments- the scientific
principles behind them
Music Versus Noise- difference
Pendulums- how can a period of a
pendulum be increased?
Air Pressure- Water Pressure
How do you establish elevation from sea
Gears- compare efficiencies, effect of
Lenses- effects of curvature, materials
on light beams
Can eggs withstand a greater force from
one direction than from others?
How strong are nylon fishing lines?
How strong are plastic wraps?
Which homemade airplane design flies
What factors affect the bounce of a
How do compression and tension make
How strong is a toothpick?
Which type of lawn sprinkler works best?
Which type\size of light bulb produces
the most light?
How can the strength of light be
measured?- the effect on degradable
Which materials can be charged with
Which battery lasts the longest?- How
can power be increased?
What affects light reflection?-
refraction and diffraction of light?
Spectrum and color production- prisms
How is sound produced? What affects the
pitch of sound?- What affects the volume
of sound? - How would you measure the
velocity of sound?
Electric Motors- principles and factors
effecting their efficiency
Electric Circuits- factors affecting
Magnets and electromagnets- What affects
the strength of an electromagnet?
Magnet Levitation- Experiment gravity
defying effects of magnetism and build a
Magnetic Levitating Train
Internal Combustion engines
Insulation-best materials, thickness
How is paint affected by temperature
changes?- Elasticity of rubber; effect
Use of solar energy- design and
construct solar cookers, solar panels,
Designing a strong bridge
Determine the accuracy of various
How much heat is required to raise the
temperature of various substances by an
Comparing active & passive solar energy
systems in cost and efficiency.
Designing an energy efficient home
Can water be magnetized?
What is light?
Compare copper wires to optical fibers
for transmitting sound, image or data.
Chemical Change and the factors that
affect the rate such as heat. light and
Acid and basic solutions,
The effects of salts on the freezing
point of water.
Fire must have air to burn.
Effect of Acids on teeth, bones and eggs
The effect of salt on the boiling point
Testing of consumer products- glues,
stain removers, antiseptics, mouthwash,
detergents, paper towels
Effects of sunlight on rubber, ink,
Growing crystals- factors that affect
the rate and the size
Personal observations on life cycle
What attracts insects? light or heat?
plants and fertilizer
Minerals in foods (Compare foods or
fruits for dissolved minerals)
How pet mice respond to different types
of food (pellets, crushed, solid)
Why do plants grow towards light?
The effects of gravity on seed
How water moves through the plant
How plants reproduce and factors that
affect the process
Why do plants move?
How do plants get nitrogen
Does gravity affect plant growth?
The importance of earthworms to soil and
The effect of soil components and
organic matter on growth of plants.
Plants and animal life in a balanced
Determine the effects of various
nutrients on plant growth
Plant growth - How does the amounts of
water affect plant growth?
Plant growth - How does the hours of
sunlight affect plant growth?
Plant growth - How does the strength of
weed killer affect the plant growth?
Plant growth - How does the temperature
affect the plant growth?
Plant growth - How do pollutants affect
the plant growth?
Plant growth - How does the PH level
affect the plant growth?
Can plants live without carbon dioxide?
Can plants live without oxygen?
Roots - how do different types of soils
affect the ability of roots to anchor
What is the effect of acid rain on plant
What conditions are favorable for:
-fungus growth- E.G. yeast, mold, mildew
What conditions are favorable for
What conditions are favorable for algae
What conditions are favorable for
bacteria growth or control?
Make a Model of Plant or Animal cell.
Understanding Electrical Conductors and
Demonstration of principals; how is
current affected by type of conductor,
temperature, filament, etc.
Compare material and objects for
Principles of fluorescent lights; how do
they compare with filament bulbs, in
effectiveness and cost.
Air Movement - Is air in your house the
same temperature at floor level and near
the ceiling? How could you spread heat
more evenly through the house?
Dew - Does it form on clear or cloudy
nights? What other frost factors
increase the amount of dew? Can you
measure how much dew is formed in a
Temperature. - How does the temperature
change during the day? What time is
usually the warmest? Can you construct
your own thermometer to keep your own
Rain - How does a rain gauge work?
Measure the rainfall over a period of
time and compare it with the daily
weather reports. - Principles of cloud
seeding and other weather modification.