104 Science Fair Projects for High School
Do hamsters suffer from jet lag? Find out if hamsters have a circadian rhythm!
Hard
Can you make a pineapple grow faster in soil, sand, or water? Let's find out!
Medium
Have you ever wondered what happens when you put an egg in salt water? Find out in this science project!
Hard
Make a hologram with nothing more than a compass and some scraps of plexiglas!
Hard
Can dogs tell the difference between blue and yellow? Find out in this science project!
Hard
Have you ever wondered what happens when you add salt or sugar to water? Find out in this science project!
Hard
Can plants learn? Find out if the Mimosa Pudica plant can be conditioned to respond to stimuli like animals do!
Hard
Learn how to use Galileo's inclined plane experiment to demonstrate acceleration with a fun and easy science project!
Hard
How does precision affect chaos? Join us as we explore the varying effects of precision on iterative processes!
Hard
Have you ever wondered what kind of light we can't see? In this experiment, you will explore the invisible light called infrared and measure its temperature.
Hard
Can your favorite drinks harm your teeth? Find out using hard boiled eggs in this science project!
Medium
Mix cornstarch and water to make quicksand and see if your hands sink!
Medium
Can some rocks hold more oil, gas and water than others? Find out in this rock porosity and permeability experiment!
Medium
Rocks are irregularly shaped. How can you measure the density of a rock? (Density = weight / volume) Discover the answer by using water displacement and weighing the rock to ...
Medium
How hard is that rock? You can learn how to classify your own rocks by their hardness just like geologists!
Medium
Did you know that milk from the fridge can be transformed into plastic? How cool is that?
Easy
Let's find out how quickly biodegradable spoons can decompose in soil!
Hard
Have you ever wondered how to make glow-in-the-dark stickers glow longer?
Medium
Do you like your food hot or cold? Find out how temperature affects your taste buds in this fun experiment!
Medium
Let's find out if aluminum foil can keep a bottle of water cold for a longer period of time!
Hard
Does classical music help children fall asleep faster? Find out in this science project!
Hard
Join us on an adventure to explore the different kinds of insects living on three different species of trees!
Easy
Does music affect your blood pressure? Find out in this fun experiment!
Hard
Can you see a 3D image in a 2D pattern? Test your eyesight with this fun science project!
Hard
Are you curious about how different types of glass windows can affect the temperature inside a room? Find out in this science project!
Hard
Find out if brushing your teeth with toothpaste can reduce the amount of bacteria in your mouth!
Hard
Is the water from a water cooler really more bacteria-filled than tap water? Find out in this science project!
Hard
Does the color of your clothing affect how much UV radiation you're exposed to? Find out in this science project!
Hard
Does acid rain dissolve buildings? Find out by testing marble, limestone, granite, and bricks in vinegar!
Hard
Does the height of your ceiling affect the temperature of your room? Find out in this science project!
Hard
In this science project, you will compare the thermal insulation of air, sand, and Styrofoam to see which one can keep water warm the longest.
Hard
Can electricity help plants grow faster? Find out in this science project!
Hard
Discover how to create beautiful shapes and images using simple geometric shapes and mathematical formulae.
Hard
Does the way you hold your tennis racquet affect how tired your muscles get? Find out in this science project!
Hard
Do you want to know if running barefoot is better for your body than running with shoes? Find out in this science project!
Hard
Does temperature affect the sound of a tuning fork? Find out in this science project!
Hard
Does sunlight kill bacteria in water? Find out in this science project!
Hard
Discover how the Bernoulli's Principle works with different shapes and how it affects lift!
Hard
Discover how light can behave like both a wave and a particle in this fun experiment!
Hard
Do you know how quickly you can respond to different colors? Find out in this science project!
Hard
Is irradiated chicken really the safest to eat? Find out in this science project!
Hard
Are you curious about the different levels of carbohydrates in different types of milk? Find out by conducting this science fair project!
Hard
Do video games help kids concentrate better? Find out in this science project by testing 10 boys and 10 girls aged 15 years on their concentration after playing video games ...
Hard
Have you ever wondered what happens when you mix salt and electricity? Find out in this science project!
Hard
Discover how temperature affects the production of methane gas from dairy waste!
Hard
Find out which antacid can neutralize the most acid and get relief from heartburn and gastritis!
Hard
Dive into this science project to explore how the color of objects changes as they are submerged deeper into the water.
Hard
Do aluminum bats hit the ball further than wooden bats? Find out in this science project!
Hard
Let's explore how temperature affects the peroxidase enzyme and how it helps convert toxic hydrogen peroxide into harmless oxygen and water.
Hard
Do you ever wonder how well dogs can hear? In this science project, we will find out how age and breed affect a dog's hearing ability.
Hard
Discover how temperature affects the enzyme Catalase and how it helps convert hydrogen peroxide into oxygen and water.
Hard
Can different materials affect how sound travels? Find out by testing the sound transmission of different materials in this science project!
Hard
Can turmeric juice counteract the effects of perchlorate on daphnia? Find out in this science project!
Hard
How does the shape of a parachute affect its drop velocity? Find out in this science project!
Hard
Do you like solving puzzles and playing strategy games? Find out if it can help you with your spatial reasoning skills!
Hard
Can DNA be taken out of the cell? We'll find out using an onion! (Check out the video where DNA is taken out of strawberries!)
Medium
Can fish recognize when it's time to eat? Find out by creating a feeding schedule and observing your fish's behavior!
Easy
Let's explore how enzymes work by testing the effects of amylase on starch!
Hard
Do you reuse your water bottle without washing it? Find out if bacteria increases in your water bottle!
Hard
Can a betta fish learn to ignore a mirror? Find out in this science project!
Medium
Learn how to construct an incubator and hatch eggs with this fun science project!
Hard
Learn how to make your own electric motor with magnets, wire, and a battery!
Hard
Can a computer's personality determine who wins the game of Monopoly? Find out in this experiment!
Hard
Have you ever seen bacteria that glow in the dark? In this project, you will streak luminescent bacteria on an agar plate and watch them grow and glow!
Hard
Find out which materials are the best insulators and how they affect the temperature of boiling water!
Medium
Learn why the seasons change and how the tilt of the Earth affects the intensity of the sunlight at a given location!
Medium
Make a hot dog cooker that uses the power of the sun! You can use this solar oven to cook other things too!
Medium
Create a mini-earthquake with a heavy object, elastic cord, and vibration sensor!
Hard
Make a volcano erupt with air pressure! See how tephra (sand) is dispersed downwind to form a cinder cone.
Hard
Discover how different solutions affect an animal cell and observe if substances pass through the cell membrane!
Medium
Find out which type of apple changes the most in sugar content after being taken out of cold storage!
Hard
Can an artificial intelligence program learn to beat a human at Connect 4? Find out in this project!
Hard
Does your child have trouble settling down for naps? Find out if music can help!
Medium
Let's find out which acne medications are the most effective against bacteria that cause acne!
Medium
Have you ever wondered how soil microbes help break down organic matter? In this project, you'll explore the environmental factors that favor decomposition by soil microbes.
Medium
Can detergents really kill plants? Find out in this experiment!
Medium
Let's build an instrument to measure the sun's diameter from Earth!
Hard
Do different methods of cooking potatoes produce a different taste? Find out by baking, pressure cooking, microwaving, boiling, and steaming potatoes and carrots to compare the results!
Hard
Learn how to determine the nutritional content of different types of foods with a few simple tests!
Hard
Build a toy that uses a candle as a heat source and a rare-earth magnet to create a heat engine!
Hard
Can you figure out the secret behind the Rubik's Cube? Join us as we explore the mathematics of how the average variegation of a Rubik's Cube changes as sequences of ...
Hard
Who will win the race? Will it be the bacteria from the feet of a human, a rabbit, or a chicken?
Medium
Ever wondered how fast sound travels? Find out with this fun science project!
Hard
Have you ever noticed that sound changes when you move? Find out why with this fun science project!
Medium
Learn how to grow your own vegetables with this fun science project! You'll explore different methods of vegetative (asexual) propagation and see which one works best.
Medium
Have you ever wondered what happens when a black hole evaporates? In this project, you'll explore the properties of black holes and learn how to identify them in the sky.
Hard
Have you ever wondered what kind of fabric would keep an astronaut warm on Mars? In this experiment, you will test different fabric combinations to see which one works best!
Medium
Have you ever wanted to make Jello with fresh pineapple instead of canned? Find out if it's possible in this fun science project!
Hard
Transform bacteria with a DNA plasmid and turn a wild-type E. coli into a ampicillin-resistant strain that produces fluorescent protein!
Hard
Do you ever wonder how sleep affects your body? Find out by conducting an experiment to measure your vital signs while you sleep!
Medium
Are you curious about what's really in your fast food? Find out by conducting this experiment!
Medium
Do you ever hit the wall when running? Find out if slow breathing can help you run further and faster!
Hard
Do your hand gestures reveal something about your personality? Find out in this experiment!
Hard
Let's explore how the pH level of acid in our stomachs affects the digestion of proteins!
Hard
This simple Oobleck recipe of cornstarch and water is a fun introduction to the complex science of non-Newtonian fluids!
Easy
Create your own planet! Shake it up and see how it's made in this fun, hands-on science experiment.
Hard
Did you know that space isn't just black and white? Join us on a colorful journey through the cosmos and discover what the colors can tell us about the universe!
Hard
Can you make a pipe cleaner foil bug walk on water? Find out with this engineering challenge by building your own water strider and exploring the science of surface tension.
Medium
Create your own solar system model to scale on the sidewalk and take a walk through space!
Medium
Can you protect a raw egg from breaking when dropped from high up? Have fun in this engineering challenge!
Easy
Let's see which paper airplane can fly the farthest! Fold, decorate, and launch your own planes to find the winning design.
Easy
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