Part II: Design and conduct an experiment

Here are some ideas for testable questions that might work for your experiment. (This list is a constant work in progress and in no way covers every idea or topic)

 

Physics:

Heat

Does changing the temperature of water affect the buoyancy of an egg?

What materials provide the best insulation from heat?

Does the start temperature of the water affect the time needed to boil?

 

Electrical (electromagnetic)

Does the type of insulation on the wire affect the strength of an electromagnet?

What effect does temperature have on the strength of different types of magnets?

Does the length of the wire affect the strength of an electromagnet?

Can you make an electromagnet stronger by adding more electric cells to the circuit?

Does the length of the wire affect the power of the circuit?

Does the thickness of the wire affect the power of the circuit?

How does a light bulb’s wattage affect the amount of heat detected above a light?

Do different brands of batteries last longer than others?

 

Mechanical

Does changing the wingtip direction affect an airplane’s flight?

Does the type of shoe worn during a 20 yard dash affect the speed in which you can run?

Does changing the size of a paper airplane affect how far it flies?

Will more air inside a basketball make it bounce higher?

How does the air pressure of a soccer ball affect how far it travels when kicked?

How does the temperature of a tennis ball affect the height of its bounce?

Which can support more weight: paper or plastic grocery bags?

How does increasing the height of a ramp affect how far a ball rolls down the ramp?

How does the weight of a bowling ball affect the number of pins knocked over?

 

Nuclear

For the sake of us all, do not test nuclear materials for your experiment :)

 

Radiant (light)

Does the color of a shirt affect the amount of heat it absorbs?

Sound

Through what material does sound travel the fastest?

Chemistry:

What brand of paper towel is most absorbent?

Does the type of wood affect how long it burns?

Does the amount of Mentos affect the height of the pop explosion?

How does the type of liquid affect how much a penny will corrode in 5 minutes?

Does changing the type of liquid affect how quickly a nail will corrode (rust)?

How does changing the amount of baking soda and vinegar affect the height of an explosion? (careful to change only one: baking soda or vinegar)

How does the brand of detergent affect how thoroughly it gets a grass stain out?

Is there an effect on evaporation rates when forming crystals from sugar and sugar substitutes?

Which antacid is the most effective in neutralizing an acid?

 

How does the temperature of water affect the time it takes to freeze into ice cubes?

Does the flavor of gelatin affect the amount of time it takes to set?

How will adding different flavors of Kool-Aid to water affect the water's boiling point?

What is the effect of salt on the boiling temperature of water?

Given the same amount of water, how does pot size affect the amount of time it takes to boil?

Does a no name stain remover work just as well as a brand name?

How does the volume (size) of a Tootsie Pop affect the number of licks needed to uncover the center?

How does the temperature of water affect the rate of stain removal?

Biology:

How does caffeine affect people’s heart rate?

How does talking on a cell phone or listening to music affect reaction time?

How does cooling your hand in ice water affect reaction time?

Does the type liquid given to a plant affect its growth?

Do artificial sweeteners attract ants the same as natural sugars?

Can mealworms or other invertebrates be taught to go through a maze?

Does having worms in soil cause plants grow faster?

On which surface can a snail move the fastest-dirt, cement, or grass?

How does the type of light affect how quickly a plant will grow?

What is the effect of light on rate of seed germination?

What is the effect of increased or decreased oxygen on plant growth?

Do mint leaves repel ants, worms, or isopods?

Does the direction seeds are planted affect plant growth?

Does surrounding color affect an insect’s eating habits?

What is the effect of different amounts of chlorine on plant growth?

What is the effect of a magnetic field on plant growth?

What is the effect of different amounts of air movement on plant growth?

Does an earthworm react to light, partial shade, or darkness?

Do ants prefer artificial sweeteners, natural sugar, or hard candy?

Which type of bread turns moldy first: store bought or bakery bread?

 

Below is an example of a poster project