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Science Fair Project Ideas

Great selection of fourth grade science fair project ideas. These science fair projects can help you find fourth grade level ideas for your science fair.

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This science fair project teaches about mold. Students will test different foods to see which grow mold the fastest.
Which Food Will Mold the Fastest?
Fourth Grade
Health and Medicine
The objective of this science fair project is to find out how much fat is in potato chips.
How Greasy are Your Potato Chips?
Fourth Grade
Health and Medicine
This project examines whether people's taste perception is influenced by what they see.
Taste Perception
Fourth Grade
Psychology and Sociology
This science fair project teaches kids experimental design and how to test if subjects can really sense if they are being watched.
The Psychology of Feeling Watched
Fourth Grade
Psychology and Sociology
This science experiment tests if dog saliva can really help heal wounds.
Can Doggy Drool Really Kill Germs?
Fourth Grade
Health and Medicine
The goal of this science fair project is to test the effectiveness of various search engines.
Effectivess of Various Search Engines
Fourth Grade
Psychology and Sociology
This science experiment examines the role of fat in food, especially in making bread rise and whipping cream.
The Role of Fat in Food
Fourth Grade
Health and Medicine
This project explores whether people's choice of a 'random' number is not as random as it seems.
17: The Most Popular Random Number
Fourth Grade
Psychology and Sociology
This project examines the common belief that with increasing age, people are less willing to adopt new technology.
Age and the Willingness to Adopt Technology
Fourth Grade
Psychology and Sociology
Which music genres have the fastest tempos? The slowest? This experiment determines if there's a relationship between beats per minute in a song and its genre.
Is there a Relationship between Tempo and Genre?
Fourth Grade
Psychology and Sociology
Are crickets affected by temperature? Test your knowledge! This project examines whether temperature has any effect on the chirping of crickets.
Effect of Temperature on Chirping Crickets
Fourth Grade
Psychology and Sociology
In this science fair project, we'll use a liquid crystal thermometer to find out whether exercising makes a difference in people's temperature.
Warm, Warmer: How Does Exercise Change Body Temperature?
Fourth Grade
Health and Medicine
Do goldfish have a preference for different water temperature readings? Find what temperature goldfish prefer.
Sounds Fishy: Do Goldfish Have Water Temperature Preferences?
Fourth Grade
Psychology and Sociology
Could there be toxic chemicals lurking in the cupboards and closets of your home?
Toxic Chemicals: What's in Your Home?
Fourth Grade
Health and Medicine
The objective of this experiment is to determine whether there is more advertising content per hour during the day in comparison to the evening prime-time viewing.
Comparison of Programming to Advertising Content
Fourth Grade
Psychology and Sociology

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