I need some good science fair project ideas,

for 8th graders please!!!!

20 Answers

  • ndtaya
    Lv 6
    1 decade ago
    Favorite Answer

    Animals and Insects

    How does electricity affect fruit flies?

    How do different types of liquids affect fruit-fly growth?

    Earth, Sun, and Stars

    What evidence can we find about the rotation of the earth from star trails?

    What is the size of the earth? (Eratosthenes method)

    How does the color of a background affect its absorption of solar insolation?

    How does sunspot activity affect radio reception?

    Food and Our Bodies

    What are eating disorders? (research and survey)

    Is there a relationship between eating breakfast and school performance?

    On which foods does fungus grow best?

    How does ethylene affect ripening fruit?

    How are teeth affected by fluorides and acids?

    Oceans, Rivers, Streams

    Does the amount of water affect the size of the wave?

    How does the volume of a stream affect its flow rate?

    Where is the current of a stream the fastest?

    Is there a relationship between phases of the moon and our weather?

    Plants and Gardening

    What kind of soil is best for water retention?

    Will antacids help soil polluted by acid rain?

    Does human hair affect the growth of plants?

    How does a garden mist spray affect plant growth?

    How does the duration of insolation affect plant growth?

    What is the percentage of water in various fruits and vegetables?

    Which plants and vegetables make the best dye?

    Which type of wildflower grows best under artificial light?

    How does temperature affect the water uptake in celery plants?

    Does the type of water affect the growth of plants?

    Is soil necessary for plant growth? (hydroponics study)

    How does rotation affect plant growth?

    Does music affect plant growth?

    Does a plant grow best in sunlight or artificial light?

    Can plants deprived of sunlight recover?

    What is the relationship between root and stem growth?

    How does gibberellic acid affect plant growth? (growth hormones study)

    Which color of light causes green beans to grow best?

    Can potatoes be grown without soil?

    How do worms affect plant growth?

    What is the effect of urine on grass?

    What affect do Epsom salts have on plant growth?

    Water Quality

    What is in our drinking water?

    Are our local waters acidic?

    Do our soils show the effects of acid rain?

    What is the lime content of various samples of water?

    How polluted is our water? (the trapping and study of bacteria with a Millipore filter)


    How can we prevent the weathering of our sidewalks and driveways?

    How does topography affect weather conditions?

    Does the topography of an area affect its local weather?

    How do changes in air pressure affect the weather?

    How are all weather factors related?


    Are safe homemade cleansers as effective as commercial cleansers?

    How does particle size affect settling rates?

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  • 1 decade ago

    I recently judged a Jr. High science fair. Some of the fair projects were really creative.

    "They color of cool"Can the color of shingles affect the temperature of a house?

    "Night Writers" - How does lack sleep affect your motor skills? They had people stay up all night giving them typing test at various points of the night and after things like drinking a cup of coffee.

    "The unpopables" - Which brand and/or flavor of popcorn has fewer un popped kernels ?

    There were so many that were great. but these are the ones that I remember as the best

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  • Anonymous
    1 decade ago

    For my science fair project, I researched the affects of farting. (no joke). Get 2 3 liter bottles (empty) and fill one with one food, and the other with another. Add a half a cup of soil (for bacteria to form) then put a balloon over the top (no cap). Monitor how big the balloon gets for one week and BAM! A perfect science fair project. Hope I helped!

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  • 1 decade ago

    I did a science fair project, where I took four of the same plants and used the sunlight and a black light. To see if sunlight makes a plant grow better or will a black make them grow better. I know which one makes them grow better. But just do the project and find out.

    Source(s): I did this when I was in the 8th grade.
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  • 1 decade ago

    No volcanos or solar systems think of something fun like ummm a........ robot im sure you can buy a little kit thing well if thats even aloud i just get tired of movies with paper micha volcanos & solar systems..think outside the box.....not much help i know but advice should work to right?

    Source(s): me
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  • 1 decade ago

    Wallpaper that has mini /or tiny little lites such as smallest x-mas size lights to light up 3-D outstamped areas area s of the wall paper. Like city lit buidings ,Safe of fire ect,, just a new idea

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  • 1 decade ago

    My daughter did one last year that landed her 2nd place in the state regional science fair

    "Are Double Stuff Oreos really double stuffed?"

    It was really fun to do, and all her teachers were very impressed!

    Good Luck, whatever you choose to do!

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  • 1 decade ago

    In England we don't do science fairs, so I'll give it my best shot.

    How antiacid tablets work - some acid and some milk of magnesia, stick them together and explain. Also demonstrate film canister rockets as they are fun.

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  • 1 decade ago

    I recommend your local library. They have tons of books on science fair projects and they will be glad to help you.

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  • 1 decade ago

    Create a hot air balloon. Show the value of kinetic energy, make an anti gravity device?

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