{"id":2074,"date":"2026-06-08T13:35:00","date_gmt":"2026-06-08T08:05:00","guid":{"rendered":"https:\/\/1000sciencefairprojects.com\/tech\/?p=1010"},"modified":"2026-06-09T11:49:47","modified_gmt":"2026-06-09T06:19:47","slug":"national-winning-science-fair-projects-5th-grade","status":"publish","type":"post","link":"https:\/\/1000sciencefairprojects.com\/tech\/national-winning-science-fair-projects-5th-grade\/","title":{"rendered":"National Winning Science Fair Projects for 5th Grade"},"content":{"rendered":"
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Science Fair Resources<\/span><\/div>\n

National Winning Science Fair Projects for 5th Grade<\/h1>\n

Discover 100 curated project ideas<\/strong> across 10 subject streams<\/strong>. Each idea is designed to help students win at school, district, and national science fairs.<\/p>\n

\ud83d\udccb 100 Projects<\/span>
\n\ud83c\udfc6 Competition Ready<\/span>
\n\ud83d\udcda 10 Streams<\/span><\/div>\n<\/div>\n
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Quick Navigation by Stream<\/h2>\n
Physics<\/a>
\nBiology & Plants<\/a>
\nChemistry<\/a>
\nEarth Science<\/a>
\nHealth & Human Body<\/a>
\nEnvironmental Science<\/a>
\nTechnology & Engineering<\/a>
\nMath & Data<\/a>
\nAnimal Science<\/a>
\nPsychology & Social Science<\/a><\/div>\n<\/div>\n
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<\/div>\n

Physics<\/h2>\n

10 Projects<\/span><\/p>\n<\/div>\n

\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
#<\/th>\nProject Idea<\/th>\nExplore<\/th>\n<\/tr>\n<\/thead>\n
1<\/td>\nWhich paper airplane design flies farthest? (variable: wing shape)<\/td>\nView \u2192<\/a><\/td>\n<\/tr>\n
2<\/td>\nDoes the color of a surface affect how much heat it absorbs from sunlight?<\/td>\nView \u2192<\/a><\/td>\n<\/tr>\n
3<\/td>\nWhich type of ball bounces highest from the same drop height?<\/td>\nView \u2192<\/a><\/td>\n<\/tr>\n
4<\/td>\nHow does the length of a pendulum affect the number of swings per minute?<\/td>\nView \u2192<\/a><\/td>\n<\/tr>\n
5<\/td>\nWhich container shape keeps ice cream from melting the longest?<\/td>\nView \u2192<\/a><\/td>\n<\/tr>\n
6<\/td>\nDoes the weight of a car affect how far it rolls down a ramp?<\/td>\nView \u2192<\/a><\/td>\n<\/tr>\n
7<\/td>\nCan you generate electricity by spinning a magnet inside a coil?<\/td>\nView \u2192<\/a><\/td>\n<\/tr>\n
8<\/td>\nWhich shape of a boat hull carries the most pennies before sinking?<\/td>\nView \u2192<\/a><\/td>\n<\/tr>\n
9<\/td>\nHow does wind direction and speed affect a kite’s flying height?<\/td>\nView \u2192<\/a><\/td>\n<\/tr>\n
10<\/td>\nDoes surface texture affect how far a toy car slides after rolling?<\/td>\nView \u2192<\/a><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n
More Physics Projects<\/a>
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Also Read : National Winning Science Fair Projects for Class 9<\/a><\/h4>\n
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Biology & Plants<\/h2>\n

10 Projects<\/span><\/p>\n<\/div>\n

\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
#<\/th>\nProject Idea<\/th>\nExplore<\/th>\n<\/tr>\n<\/thead>\n
1<\/td>\nWhich color of light helps bean plants grow tallest in two weeks?<\/td>\nView \u2192<\/a><\/td>\n<\/tr>\n
2<\/td>\nDoes talking to plants help them grow faster?<\/td>\nView \u2192<\/a><\/td>\n<\/tr>\n
3<\/td>\nWhich type of soil (clay, loam, sand) grows the healthiest tomato plant?<\/td>\nView \u2192<\/a><\/td>\n<\/tr>\n
4<\/td>\nDo plants grow better with tap water, filtered water, or rainwater?<\/td>\nView \u2192<\/a><\/td>\n<\/tr>\n
5<\/td>\nWhich common household item slows mold growth on bread best?<\/td>\nView \u2192<\/a><\/td>\n<\/tr>\n
6<\/td>\nDoes the direction seeds are planted (up or down) affect germination speed?<\/td>\nView \u2192<\/a><\/td>\n<\/tr>\n
7<\/td>\nCan plants grow without soil using only water and nutrients?<\/td>\nView \u2192<\/a><\/td>\n<\/tr>\n
8<\/td>\nWhich fruit ripens fastest at room temperature vs in the refrigerator?<\/td>\nView \u2192<\/a><\/td>\n<\/tr>\n
9<\/td>\nDoes caffeine in coffee water affect how fast bean sprouts grow?<\/td>\nView \u2192<\/a><\/td>\n<\/tr>\n
10<\/td>\nWhich natural fertilizer (compost, egg shells, banana peels) grows plants best?<\/td>\nView \u2192<\/a><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n
More Biology & Plants Projects<\/a>
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Chemistry<\/h2>\n

10 Projects<\/span><\/p>\n<\/div>\n

\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
#<\/th>\nProject Idea<\/th>\nExplore<\/th>\n<\/tr>\n<\/thead>\n
1<\/td>\nWhich household liquid cleans pennies best and why?<\/td>\nView \u2192<\/a><\/td>\n<\/tr>\n
2<\/td>\nDoes hot water or cold water dissolve sugar faster?<\/td>\nView \u2192<\/a><\/td>\n<\/tr>\n
3<\/td>\nWhich natural fruit juice makes the best invisible ink?<\/td>\nView \u2192<\/a><\/td>\n<\/tr>\n
4<\/td>\nCan you make a natural glue that holds as well as school glue?<\/td>\nView \u2192<\/a><\/td>\n<\/tr>\n
5<\/td>\nWhich liquid has the highest density? (Layered liquids experiment)<\/td>\nView \u2192<\/a><\/td>\n<\/tr>\n
6<\/td>\nDoes adding salt make water boil faster or slower?<\/td>\nView \u2192<\/a><\/td>\n<\/tr>\n
7<\/td>\nWhich brand of paper towel absorbs the most water?<\/td>\nView \u2192<\/a><\/td>\n<\/tr>\n
8<\/td>\nCan you make a pH indicator from red cabbage that beats litmus paper?<\/td>\nView \u2192<\/a><\/td>\n<\/tr>\n
9<\/td>\nDoes the shape of ice affect how fast it melts?<\/td>\nView \u2192<\/a><\/td>\n<\/tr>\n
10<\/td>\nWhich soda pop has the most CO2 gas dissolved in it?<\/td>\nView \u2192<\/a><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n
More Chemistry Projects<\/a>
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Earth Science<\/h2>\n

10 Projects<\/span><\/p>\n<\/div>\n

\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
#<\/th>\nProject Idea<\/th>\nExplore<\/th>\n<\/tr>\n<\/thead>\n
1<\/td>\nWhich type of rock weathers fastest when exposed to vinegar (acid rain)?<\/td>\nView \u2192<\/a><\/td>\n<\/tr>\n
2<\/td>\nWhich soil type (sand, clay, loam) holds the most water?<\/td>\nView \u2192<\/a><\/td>\n<\/tr>\n
3<\/td>\nDoes slope angle affect how fast water erodes soil in a tray?<\/td>\nView \u2192<\/a><\/td>\n<\/tr>\n
4<\/td>\nCan you predict tomorrow’s weather from cloud patterns?<\/td>\nView \u2192<\/a><\/td>\n<\/tr>\n
5<\/td>\nDoes the color of the ground affect how hot it gets in sunlight?<\/td>\nView \u2192<\/a><\/td>\n<\/tr>\n
6<\/td>\nWhich type of container loses heat the fastest (glass, plastic, metal)?<\/td>\nView \u2192<\/a><\/td>\n<\/tr>\n
7<\/td>\nHow does plant cover affect the amount of runoff from rain?<\/td>\nView \u2192<\/a><\/td>\n<\/tr>\n
8<\/td>\nCan you build a model that shows how mountains form from plate pressure?<\/td>\nView \u2192<\/a><\/td>\n<\/tr>\n
9<\/td>\nWhich local material best filters muddy water to make it clear?<\/td>\nView \u2192<\/a><\/td>\n<\/tr>\n
10<\/td>\nDoes grass, concrete, or sand get hottest in summer sunlight?<\/td>\nView \u2192<\/a><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n
More Earth Science Projects<\/a>
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Health & Human Body<\/h2>\n

10 Projects<\/span><\/p>\n<\/div>\n

\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
#<\/th>\nProject Idea<\/th>\nExplore<\/th>\n<\/tr>\n<\/thead>\n
1<\/td>\nDoes breakfast improve concentration and spelling test scores?<\/td>\nView \u2192<\/a><\/td>\n<\/tr>\n
2<\/td>\nWhich hand washing technique removes the most germs?<\/td>\nView \u2192<\/a><\/td>\n<\/tr>\n
3<\/td>\nDoes exercise for 10 minutes improve your memory recall test?<\/td>\nView \u2192<\/a><\/td>\n<\/tr>\n
4<\/td>\nWhich healthy snack gives you the most energy for PE class?<\/td>\nView \u2192<\/a><\/td>\n<\/tr>\n
5<\/td>\nDoes listening to music while studying improve quiz scores?<\/td>\nView \u2192<\/a><\/td>\n<\/tr>\n
6<\/td>\nWhich sunscreen SPF actually blocks the most UV using UV beads?<\/td>\nView \u2192<\/a><\/td>\n<\/tr>\n
7<\/td>\nDoes the amount of sleep the night before affect your reaction time?<\/td>\nView \u2192<\/a><\/td>\n<\/tr>\n
8<\/td>\nWhich common food has the most hidden sugar content?<\/td>\nView \u2192<\/a><\/td>\n<\/tr>\n
9<\/td>\nDoes posture while reading affect reading speed?<\/td>\nView \u2192<\/a><\/td>\n<\/tr>\n
10<\/td>\nCan smelling lavender or peppermint improve concentration during tests?<\/td>\nView \u2192<\/a><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n
More Health & Human Body Projects<\/a>
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Environmental Science<\/h2>\n

10 Projects<\/span><\/p>\n<\/div>\n

\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
#<\/th>\nProject Idea<\/th>\nExplore<\/th>\n<\/tr>\n<\/thead>\n
1<\/td>\nWhich common household waste item breaks down fastest in soil?<\/td>\nView \u2192<\/a><\/td>\n<\/tr>\n
2<\/td>\nCan you filter polluted water using sand, gravel, and charcoal?<\/td>\nView \u2192<\/a><\/td>\n<\/tr>\n
3<\/td>\nWhich indoor plant purifies air the most (spider plant, aloe, pothos)?<\/td>\nView \u2192<\/a><\/td>\n<\/tr>\n
4<\/td>\nDoes recycled paper have the same strength as new paper?<\/td>\nView \u2192<\/a><\/td>\n<\/tr>\n
5<\/td>\nWhich material (plastic, glass, metal, paper) has the best recyclability?<\/td>\nView \u2192<\/a><\/td>\n<\/tr>\n
6<\/td>\nCan you power a small LED using a vegetable or fruit battery?<\/td>\nView \u2192<\/a><\/td>\n<\/tr>\n
7<\/td>\nWhich color of roof keeps a house the coolest in summer?<\/td>\nView \u2192<\/a><\/td>\n<\/tr>\n
8<\/td>\nDoes composting really reduce the amount of waste in a landfill?<\/td>\nView \u2192<\/a><\/td>\n<\/tr>\n
9<\/td>\nWhich packaging material breaks down the fastest in water?<\/td>\nView \u2192<\/a><\/td>\n<\/tr>\n
10<\/td>\nHow does litter near a stream affect the plants growing nearby?<\/td>\nView \u2192<\/a><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n
More Environmental Science Projects<\/a>
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Technology & Engineering<\/h2>\n

10 Projects<\/span><\/p>\n<\/div>\n

\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
#<\/th>\nProject Idea<\/th>\nExplore<\/th>\n<\/tr>\n<\/thead>\n
1<\/td>\nBuild the strongest possible bridge from popsicle sticks and glue<\/td>\nView \u2192<\/a><\/td>\n<\/tr>\n
2<\/td>\nDesign a solar oven and measure the highest temperature it reaches<\/td>\nView \u2192<\/a><\/td>\n<\/tr>\n
3<\/td>\nWhich bottle rocket design (fin shape) flies the straightest?<\/td>\nView \u2192<\/a><\/td>\n<\/tr>\n
4<\/td>\nCan you build a working water filter from natural materials?<\/td>\nView \u2192<\/a><\/td>\n<\/tr>\n
5<\/td>\nBuild a model dam and test how much water pressure it can hold<\/td>\nView \u2192<\/a><\/td>\n<\/tr>\n
6<\/td>\nDesign a parachute that slows an egg fall without breaking it<\/td>\nView \u2192<\/a><\/td>\n<\/tr>\n
7<\/td>\nBuild a windmill from paper that generates the most rotation<\/td>\nView \u2192<\/a><\/td>\n<\/tr>\n
8<\/td>\nCan you build a simple motor from a battery, copper wire, and magnets?<\/td>\nView \u2192<\/a><\/td>\n<\/tr>\n
9<\/td>\nDesign a boat that holds the most pennies without sinking<\/td>\nView \u2192<\/a><\/td>\n<\/tr>\n
10<\/td>\nBuild a marble maze that solves in the fewest total moves<\/td>\nView \u2192<\/a><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n
More Technology & Engineering Projects<\/a>
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Math & Data<\/h2>\n

10 Projects<\/span><\/p>\n<\/div>\n

\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
#<\/th>\nProject Idea<\/th>\nExplore<\/th>\n<\/tr>\n<\/thead>\n
1<\/td>\nIs your height equal to your wingspan? Test Vitruvian Man’s claim<\/td>\nView \u2192<\/a><\/td>\n<\/tr>\n
2<\/td>\nWhich guessing strategy wins most often in a number guessing game?<\/td>\nView \u2192<\/a><\/td>\n<\/tr>\n
3<\/td>\nDo people with longer ring fingers run faster? (2D:4D digit ratio)<\/td>\nView \u2192<\/a><\/td>\n<\/tr>\n
4<\/td>\nIs there a pattern in the winning numbers of your local lottery?<\/td>\nView \u2192<\/a><\/td>\n<\/tr>\n
5<\/td>\nCan you predict coin flip results better with more flips?<\/td>\nView \u2192<\/a><\/td>\n<\/tr>\n
6<\/td>\nDo people overestimate or underestimate a minute of time?<\/td>\nView \u2192<\/a><\/td>\n<\/tr>\n
7<\/td>\nIs there a relationship between shoe size and height in your class?<\/td>\nView \u2192<\/a><\/td>\n<\/tr>\n
8<\/td>\nDo students who eat lunch score better on afternoon quizzes?<\/td>\nView \u2192<\/a><\/td>\n<\/tr>\n
9<\/td>\nIs there a pattern in which numbers people randomly choose?<\/td>\nView \u2192<\/a><\/td>\n<\/tr>\n
10<\/td>\nDo students spend more time on easy or hard problems when test-taking?<\/td>\nView \u2192<\/a><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n
More Math & Data Projects<\/a>
\nBack to Top<\/a><\/div>\n<\/div>\n
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Animal Science<\/h2>\n

10 Projects<\/span><\/p>\n<\/div>\n

\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
#<\/th>\nProject Idea<\/th>\nExplore<\/th>\n<\/tr>\n<\/thead>\n
1<\/td>\nDo ants prefer sweet or salty food?<\/td>\nView \u2192<\/a><\/td>\n<\/tr>\n
2<\/td>\nWhich color of flower attracts the most bees?<\/td>\nView \u2192<\/a><\/td>\n<\/tr>\n
3<\/td>\nDo dogs respond differently to happy vs angry human voices?<\/td>\nView \u2192<\/a><\/td>\n<\/tr>\n
4<\/td>\nDo goldfish remember feeding times and gather before mealtime?<\/td>\nView \u2192<\/a><\/td>\n<\/tr>\n
5<\/td>\nWhich bird species visits a feeder most in winter mornings?<\/td>\nView \u2192<\/a><\/td>\n<\/tr>\n
6<\/td>\nDo meal worms prefer light or dark environments?<\/td>\nView \u2192<\/a><\/td>\n<\/tr>\n
7<\/td>\nCan butterflies taste food with their feet? (Behavioral test)<\/td>\nView \u2192<\/a><\/td>\n<\/tr>\n
8<\/td>\nWhich household smell repels ants most effectively?<\/td>\nView \u2192<\/a><\/td>\n<\/tr>\n
9<\/td>\nDo cats prefer patterned or solid toys for playing?<\/td>\nView \u2192<\/a><\/td>\n<\/tr>\n
10<\/td>\nDo crickets chirp faster in warmer temperatures?<\/td>\nView \u2192<\/a><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n
More Animal Science Projects<\/a>
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Psychology & Social Science<\/h2>\n

10 Projects<\/span><\/p>\n<\/div>\n

\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
#<\/th>\nProject Idea<\/th>\nExplore<\/th>\n<\/tr>\n<\/thead>\n
1<\/td>\nDoes wearing a school uniform affect how teachers treat students?<\/td>\nView \u2192<\/a><\/td>\n<\/tr>\n
2<\/td>\nDo kids eat more vegetables when they are shaped into fun designs?<\/td>\nView \u2192<\/a><\/td>\n<\/tr>\n
3<\/td>\nDoes peer pressure make people give wrong answers on easy questions?<\/td>\nView \u2192<\/a><\/td>\n<\/tr>\n
4<\/td>\nDo people read faster on paper or on a screen?<\/td>\nView \u2192<\/a><\/td>\n<\/tr>\n
5<\/td>\nDoes the color of a plate affect how much food you eat?<\/td>\nView \u2192<\/a><\/td>\n<\/tr>\n
6<\/td>\nDo people remember faces or names better after one introduction?<\/td>\nView \u2192<\/a><\/td>\n<\/tr>\n
7<\/td>\nDoes background music type affect how fast people complete a puzzle?<\/td>\nView \u2192<\/a><\/td>\n<\/tr>\n
8<\/td>\nDo taller people have an advantage in being picked as group leaders?<\/td>\nView \u2192<\/a><\/td>\n<\/tr>\n
9<\/td>\nDoes the time of day affect how many math problems students can solve?<\/td>\nView \u2192<\/a><\/td>\n<\/tr>\n
10<\/td>\nDo people tip more or less when waitstaff smile vs do not smile?<\/td>\nView \u2192<\/a><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n
More Psychology & Social Science Projects<\/a>
\nBack to Top<\/a><\/div>\n<\/div>\n
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Ready to Start Your Science Fair Project?<\/h2>\n

Browse 1,000+ fully detailed science fair project guides with methodology, materials, and judging criteria.<\/p>\n

Browse All Projects<\/a>
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Browse 100 national-level winning science fair project ideas for 5th graders. Simple, innovative experiments in physics, biology, chemistry, and technology.<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[13],"tags":[],"class_list":["post-2074","post","type-post","status-publish","format-standard","hentry","category-science-fair-projects"],"yoast_head":"\n100 National Winning Science Fair Projects for 5th Grade (2025)<\/title>\n<meta name=\"description\" content=\"Browse 100 national-level winning science fair project ideas for 5th graders. 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