How can I tell if an egg is hard boiled without breaking it open?

Why doesn't a mother bird break her eggs when she sits on them?

The amazing egg drop project.

Can I get a big egg into a small bottle without breaking the egg?

Can you measure the speed of light?

What are the angles of reflecting light?

Can I vary the properties of elastic polymers by changing the formulas?

What affect do acids have on metals?

Is the soil in my garden or from other places capable of buffering acid?

Which battery maintains its voltage the longest in low, medium and high drain devices?

Can I determine which cleaning products work the best to kill every day germs?

Do fans really cool you off during the hot weather?

Can I grow crystals?

Can I determine which brand of paper towel is the best value for the money?

Can I determine the effectiveness of different detergents on different types of stains?

Will natural (homeopathic) treatment work better for my dog and cat than conventional pharmaceutical products?

Which is more important to you and your fellow students: computers, TV, or newspapers? What about the parents?

Do boys or girls get better grades? Who has better study habits?

What substance attracts and holds the most solar energy?

Can I split the hydrogen and the oxygen in water?

Can I determine if a computer is worth upgrading and increasing its speed? (Pentium-Based Computer)

Can I make two different compasses that work?

How does the caffeine in Coke and coffee affect the blood pressure of youngsters and adults?

What type of birds live around me?

Who knows more about protecting computers from viruses?

Can I make frogs jump with static electricity?

Do air and light affect decomposition of food products?

What concentration of bleach is needed to kill mold?

Can I determine how a bird eats by looking at its beak?

Can I make a wind generator?

Can I make my own perfume?

Does the strength of a magnet become affected when subjected to different degrees of hot and cold temperatures?

Is it safe to reuse the same water bottle over and over?

What causes the most stress among students of my age group?

Conduct a survey to find out who knows more about the Everglades .

Which truss design is the strongest?

Can plants grow without soil?

Can I build a cantilever?

How does the size of a pumpkin compare to the number of seeds in it?

Can I collect and store solar energy?

What are the effects of acid rain on seed germination and plant life?

Smashing Pumpkins! How does the size of a pumpkin relate to the force needed to break it?

Who knows more about California agriculture?

How do different types of music affect blood pressure?

Can I grow stalactites and stalagmites? What are they anyway?

Do teenagers choose the same colleges their parents went to? Do they choose the same careers?

How long does it take water to freeze? Will it freeze more quickly if the water is very cold to begin with?

What material melts and prevents ice most effectively?

Are all-natural antibacterials as effective as prescribed pharmaceutical antibiotics?

How to set up an experiment in biogas (methane) production.

Do proteins digest faster in acid or alkaline environments?

Can I simulate a hurricane and predict the damage?

Can I prove that there may be bias in poll taking?

Just how much do people know about cattle?

Can the solar system turn a propeller?

Do enzymes aid in the removal of protein-based stains?

Can I make a real working rheostat, a small electrical device that controls voltage flow?

The Physics of Baseball

Can I make solid objects float in air?

What type of leaves produce the best leaf rubbings?

Can I forecast the weather by myself?

Can I make a real working telegraph?

Can I make a kaleidoscope?

Which plants are easiest to clone offspring from?

Can I make a real working thermometer?

What temperature do germs grow best at?

Can an inexperienced person create stained glass windows?

Will UV degrade monofilament fishing line? If so, how long will it take?

Can I make a real flying saucer?

Can I make far-a-way objects appear much closer?

Does music affect the growth of plants?

Which colors and materials cool the fastest?

Will cut flowers last longer if stems are cut regularly?

Which cheese will get the moldiest?

Taste, smell, touch, sight, hearing - a very SENSE-able project

Can I determine if people are right handed or left handed?

How good a detective are you?

How much weight can a helium balloon lift?

Can magnetism get rusty old iron out of nice clean sand?

Can I make popcorn swing using static electricity?

Which liquid will cause a nail to rust the most, the fastest?

Electricity in a bottle: Make a Leyden Jar Capacitor

What type of parachute floats down the slowest?

Can I inflate a balloon using vinegar and baking soda?

Can I make a dozen eggs from just one using reflection and mirrors?

Can I get a lion into its cage with the science of perception?

Can I make an egg bounce?

Is solar energy really practical?

Can we use mother nature to help keep us cool in the hot summertime?

Does noise affect a person's concentration?

Pollution

Can people really have ESP ?

Which popcorns pop the most kernels?

Does red light improve the healing rate of skin wounds?

How much bacterial growth develops on cooked turkey left out of the refrigerator?

Which public places have the most germs?

Can I extract DNA from animal tissue?

Can I control water and air pressure?

How do temperature changes affect the time required for aspirin to dissolve?

Do males or females have better memories? Old or young?

What behaviors does my cat exhibit most frequently?

Can body language help me determine if a person is lying?

Does lack of sleep affect athletic performance?

Do boys or girls need more personal space?

How does the diameter of the hose affect the water speed in a siphon?

Can I be an archeologist?

Can I make the water in a bucket move to the sides of the bucket?

Can I make soap that works as good as what we buy in the store?

Do girls or boys have better manners?

Can I make an accurate clock with water?

How much more weight can I lift using a block and tackle?

Which thermometer is most accurate?

Can I determine how many calories are in a peanut?

Can I make a boomerang that really works?

Can my fellow students really identify and taste the difference in Pepsi, Coke, and other Cola drinks?

Which detergent works best?

Which fertilizer do plants like best?

What type of wood absorbs the most water?

Can I make an accurate model of the earth and its layers?

How does exercise affect blood pressure?

Which cat litter absorbs the most?

Can I ascertain if the water in my house is hard water or soft water?

Which brand of batteries last the longest?

Can I make six different kinds of slime and determine which one is the slimiest?

Can decalcified bones reabsorb calcium from solution?

Which store can I save the most money at?

Do people remember audio or visual information better?

Can I make a model of a volcano?

Which product will melt ice the best?

Does caffeine affect a person's blood pressure?

What do people throw away?

Can I suspend an object in the air by blowing down on it?

What Dissolves in Water?

What materials conduct electricity?

Can I overcome the force that slows things down?

Can I make an explosive chemical reaction?

How does size of earth's movement affect damage by a tsunami?

What type of bridge is the strongest?

New Item

How does heat affect enzyme activity?

Can I control invisible magnetic fields?

How does the weight of a pendulum affect it's period?

Paintball Accuracy

¿Puedo hacer un generador de aire?

How does gas pressure affect the force of a paintball strike?

What works best to treat heartburn, home remedies or over-the-counter antacids?

How does changing the effort point on a third class lever affect the resistance of the load and how does this change relate to the distance the effort and resistance travel?

How does the note from a trumpet affect the movement of the air?

How does the shape of an airfoil affect the amount of lift it produces?

What affect does an electromagnetic field have on algae cells?

How does the salt content of water vary in an estuary?

How does the intensity of the light source affect the transpiration rate of a plant?

Which materials and colors heat up the fastest?

Do temperature changes affect the growth and survival rate of aquatic plants?

Where in my neighborhood is it most polluted?

Can I design and build a web page on my own?

The Sun. Can we measure it? What can we learn from it? What can it teach us?

How does environmentally friendly antifreeze perform compared to traditional antifreeze?

Will fruits or vegetables lose their moisture more rapidly?

How much caffeine is in tea?

Can I make a device to determine electrical charge polarity?

How will the intensity of various lights be affected by increasing distance?

Does your eye color affect your vision?

Can I determine the flammability of three different materials after various flame retardants are applied?

Will alcohol and tobacco have an adverse affect on seed germination?

What is the pH (acidity) of many common substances?

Can I change the sleeping and activity habits of an animal?

Is astrology for real? Can I do a science project to find out?

How many teeth does a sand dollar have?

Can I demonstrate that for every action there is an equal and opposite reaction?

What liquid causes hands to wrinkle the fastest?

What food do cats like best?

What is the most common feeding behavior among birds?

What food do dogs like best?

How can I best preserve a Christmas tree?

Does temperature affect how long holiday punch stays carbonated?

How do various search engines compare?

Can this blob change from liquid to solid and back right before my eyes?

Can I extract DNA from an onion?

Composting. Why do it?

Which age group is the best recycler?

What type of paper decomposes the fastest?

How does light color affect photosynthesis?

How does air temperature affect evaporation of water?

How does humidity affect evaporation of water?

How does wind affect evaporation of water?

Is the sense of smell or taste more accurate in identifying food?

How does water hardness affect soap suds?

Which household items are acids and which are bases?

What kind of food do ants like to eat best?

Will varying temperatures affect the amount of rust on a penny, nail, needle and paper clip when submerged in different liquid environments?

Do different kinds of music such as jazz, rap or classical affect test performance?

Which soft drink contains the most fizz?

Which uses more water, a bath or a shower?

Does age make a difference in lung capacities?

Is the sense of taste or smell more accurate in identifying carrots, string beans, potatoes and cabbage.

Is the sense of taste or smell more accurate in identifying hot dogs, hamburgers, chicken and steak?

How do cold and warm temperatures affect how a butterfly (caterpillar) grows?

How do light and dark conditions affect how a butterfly (caterpillar) grows?

Which material conserves heat best, paper, cotton, or aluminum foil?

Will you really get better gas mileage if the family car has proper tire pressure?

Can you get better fuel economy in your family car with proper tune up, air filters and motor oil?

What do most car drivers do at stop signs? Do they stop, or do they just slow down?

How do variations in light and darkness effect the behavior of ants?

How do variations in temperature affect the behavior of ants?

Will your trash bag break down or will it clog up the environment?