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High School Projects

Get ideas for science projects appropriate for high school students.

Alum Crystals
Do you want to grow a big single crystal instead of a mass of crystals? Then try out these instructions for growing a big alum crystal. You can apply the techniques used here to grow big single crystals of other substances, too.

Ammonium Phosphate Crystals (Easy)
Monoammonium phosphate crystals are among the quickest, easiest, and safest crystals you can grow. Learn how to grow these crystals yourself.

Baking Soda & Vinegar Volcano
Okay, it's the kitchen equivalent of a volcano, not a real one. The 'eruption' is cool all the same! It's also more or less non-toxic, which adds to its appeal.

Baking Soda Crystals
Baking soda crystals are easy to grow. Here are step-by-step instructions explaining how you can grow baking soda crystals yourself.

Baking Soda Stalactites and Stalagmites
Make your own stalagmites and stalactites using baking soda or sodium bicarbonate. It's an easy, non-toxic crystal project.

Bend Water with Static Electricity
Use static electricity to bend a stream of flowing water. This is an easy science activity that illustrates how opposite electrical charges attract each other.

Black Light Projects
There are a lot of interesting science projects you can try in which you make things glow in the dark using a black light or ultraviolet lamp. Here are some fun glowing projects to try.

Black Snakes or Glow Worms
You can make black snake or glow worm fireworks yourself, safely and easily.

Borax Crystal Snowflake
Do real snowflakes melt too quickly? Grow a borax snowflake, color it blue if you like, and enjoy the sparkle all year long!

Bouncing Polymer Ball
Use chemistry to make a bouncing polymer ball, then alter the procedure to see the effect the changes have on the charactertistics of the bouncing ball.

Bubble Prints
Bubble prints are like fingerprints, except made with bubbles. You can make bubble prints and learn about how bubbles are shaped and how pigments combine to make different colors.

Cabbage pH Paper Video
Have you ever wanted to make your own pH paper test strips? This is an easy project that you can complete in a few minutes. Here's a video that guides you through the steps of making pH paper test strips yourself.

Caffeine & Typing Speed
The purpose of this science fair project is to determine whether caffeine affects typing speed.

Candle Science Magic Trick
You know you can put out a candle flame by pouring water on it. In this science magic trick, the candle will go out when you pour 'air' onto it.

Carbonated Fizzy Fruit
Use dry ice to carbonate fruit. The fruit will be filled with tingly carbon dioxide bubbles, like a soda. The fizzy fruit is great to eat on its own or it can be used in recipes.

Chalk Chromatography
You can use chalk and alcohol to perfom chromatography to separate the pigments in food colorings or inks. After you've finished making your chromatogram, you'll have colored chalk.

Charcoal Crystal Garden Instructions
Make delicate, colorful crystals! This is a great classic crystal-growing project. You use charcoal briquettes (or other porous materials), ammonia, salt, bluing, and food coloring to grow a sort of crystal garden.

Chemistry Fun with Pennies
Use pennies, nails, and a few simple household ingredients to explore some of the interesting properties of metals. Clean the pennies chemically, make verdigris, and plate the nails with copper.

Christmas Chemistry - Make Peppermint Cream Wafers
Chemistry and cooking share a lot in common! You can have some Christmas chemistry fun in the lab making these peppermint cream wafer candies.

Chromatography with Candy and Coffee Filters
Analyze the dyes used in your favorite candies with paper chromatography using a coffee filter, colored candies, and a salt solution.

Cloud in a Bottle Demonstration
Here's a quick and easy science project you can do: make a cloud inside a bottle. This simple project uses water vapor and smoke from a match to help form a cloud.

Colored Chalk Recipe
This is cool colored chalk, for sidewalks or anywhere! Washes off with water, too.

Colored Flowers
It's easy to make your own colored flowers, especially carnations and daisies, but there are a couple of tricks that help ensure great results. Here's how you do it.

Copper Plating Christmas Ornament
Copper plate a holiday decoration as a Christmas ornament or for other decorative uses.

Copper Sulfate Crystals
Copper sulfate crystals are among the easiest and most beautiful crystals that you can grow. The brilliant blue crystals can be grown relatively quickly and can become quite large. Here's how you can grow copper sulfate crystals yourself.

Crystal Geode Project
Natural geodes are hollow rock formations that contain deposits of crystals. Assuming you don't have a geological timeframe to obtain a geode, it's easy to make your own crystal geode using plaster of paris, alum, and food coloring.

Cup of Quick Crystal Needles
Grow a cupful of epsom salt crystal needles in your refrigerator. It's quick, easy, and safe.

Density Column
Make a liquid layers density column with as many as seven layers using common household liquids. This is an easy, fun and colorful science project that illustrates the concepts of density and miscibility.

Disappearing Ink Instructions
Learn how to make blue or red ink that will disappear after exposure to air. Tips for restoring the color and an explanation of the acid-base chemistry of the reaction are also included.

Diving Ketchup Magic Trick
Place a ketchup packet in a bottle of water and make it rise and fall at your command, as if by magic. Of course, the magic involves some basic science. Here's how to do the diving ketchup trick and how it works.

Duck Tape Triboluminescence
You can use duck tape to see an example of triboluminescence, the glow given off when some materials are subjected to mechanical stress or friction. The duck tape triboluminescence project is extremely easy and only take a few seconds to try.

Edible Slime
Most slime recipes are non-toxic, but there are only a few you can actually eat and none that taste as good as this one! Here's how to make edible slime.

Effect of Acids and Bases on the Browning of Apples
Perform an experiment to observe the effects of acids, bases, and water on the rate of browning of cut apples or other produce.

Egg in a Bottle Demonstration
You don't see air and might not think much of it is contained in a bottle, but air and the pressure it exerts can be very powerful. The egg in a bottle demonstration illustrates the concept of air pressure.

Electroactive Slime
This recipe makes cool, non-toxic slime that appears to have a life of its own!

Endothermic Reaction (Safe)
Most endothermic reactions contain toxic chemicals, but this citric acid and sodium bicarbonate reaction is safe and easy.

Epsom Salt Crystals
Epsom salt crystals are easy to grow and form quickly. Here's what you need to know to make your own magnesium sulfate crystals.

Exothermic Chemical Reaction
Exothermic chemical reactions produce heat. In this reaction vinegar is used to remove the protective coating from steel wool, allowing it to rust. When the iron combines with oxygen, heat is released.

Fake Blood
This results in a non-toxic, realistic stage blood.

Fake Glass Recipe
These instructions will result in either clear or amber glass, depending on the cooking time used.

Fake Neon Sign
Do you love the look of neon signs, but want an inexpensive alternative that you can customize to say whatever you want? You can make a fake neon sign using fluorescence to make inexpensive common materials glow.

Fake Snot Recipe
This is a gooey, gross variation of the traditional slime recipe, great for Halloween and other occasions requiring snot.

Fake Snow Instructions
You can make fake snow using a common polymer. The fake snow is non-toxic, feels cool to the touch, and looks similar to the real thing.

Fizzy Potion Recipe
Make a non-toxic fizzy Mad Scientist potion using ingredients from your kitchen. The potion looks evil, but it is safe enough to drink.

Floam Instructions
Make your own version of Floam, a type of slime that contains polystyrene beads so that you can mold it into shapes.

Fried Green Egg
Red cabbage juice contains a natural pH indicator that changes color from purple to green under basic (alkaline) conditions. You can use this reaction to make a fried green egg.

Fruit Battery
If you have fruit, a couple of nails, and wire then you can generate electricity to turn on a light bulb. Learn how to make a fruit battery. It's fun, safe, and easy.

Fruit Ripening and Ethylene Experiment
Measure the ripening of fruit from exposure to the plant hormone ethylene by testing starch levels with an iodine solution. This easy experiment can be performed on several types of fruit, such as apples, pears, and bananas.

Gel Air Fresheners
Feeling crafty? If you can make Jello, then you can make your own gel air fresheners. It's easy and fun. You can choose your own scents and colors. For holiday fun, consider layering different colored gels or using seasonal fragrances (e.g., pine or cinnamon for Christmas).

Gelatin Plastic Recipe
Colorful gelatin shapes can be used to make jewelry, mobiles, decorations, and more!

Geode of Copper Sulfate Crystals
Geodes are rocks that contain crystals. Normally, millions of years are required for flowing water and minerals to deposit crystals, but you can make your own 'geode' in only a few days. Grow blue copper sulfate crystals inside an egg shell to make your own geode.

Glow in the Dark Alum Crystals
Alum crystals are among the quickest, easiest, and most reliable crystals you can grow. Did you know you can make them glow in the dark by adding a common household ingredient to the crystal growing solution?

Glow in the Dark Crystal Geode
It's very easy to make a glow in the dark crystal geode. The rock is a natural mineral (eggshell). You can use one of several common household chemicals to grow the crystals. The glow comes from phosphorescent paint, which you can get from a craft store.

Glow in the Dark Ice
Learn how to make ice cubes that will glow in the dark when exposed to a black light. The glowing ice is easy to make and safe to use in drinks.

Glow in the Dark Mentos & Tonic Water Fountain
It's easy to make a mentos and soda eruption glow. All you need to do is use tonic water or diet tonic water instead of the usual diet soda and shine a black light on the fountain.

Glow in the Dark Pumpkin
You can make a glow in the dark pumpkin with a jack-o-lantern face using a common non-toxic chemical. The jack-o-lantern doesn't require carving or fire, shines in rain or wind, and lasts as long as your pumpkin. Plus, the glowing pumpkin looks really spooky!

Glow in the Dark Slime
What is better than regular slime? Slime that glows in the dark, of course! This is an easy and fun project that is suitable for kids.

Glow-in-the-Dark Crystal Snowflake
Learn how to make a glow-in-the-dark crystal snowflake or other glowing holiday ornament. This is a safe and easy project that's great for kids and kids-at-heart. The crystal decorations are light-weight and inexpensive to make.

Glowing Bubbles
Bubbles are already awesome, but glowing bubbles are even better. It is easy and safe to make bubbles glow, plus it doesn't require any hard-to-find materials. Here is what you do.

Glowing Ice Crystal Ball
This glowing crystal ball is easy to make, plus the light is sealed so you can float the glowing crystal ball in a punch bowl or use it as a safe decoration anywhere you might like glowing ice.

Glowing Jell-O Recipe
It's incredibly easy to make Jell-O or other gelatin glow under a black light. Here's what you do.

Glowing Water
It's really easy to make glowing water that you can use as glowing water or as a glowing ingredient in other water-based projects.

Helium Voice
If you breathe in helium and talk you will have a higher pitched squeaky voice. Learn how to do the helium voice experiment safety and find out how helium voice works.

Homemade Hand Sanitizer
Some commercial hand sanitizers contain ingredients as scary as the germs they protect you from, so why not make your own hand sanitizer from ingredients you select? This is an excellent project for kids as well as adults, since the project can be expanded to include a discussion about hygiene and disinfection.

Honeycomb Candy Recipe
Honeycomb candy is an easy-to-make candy that has an interesting texture caused by carbon dioxide bubbles getting trapped within the candy.

Hot Ice or Sodium Acetate
Sodium acetate or hot ice is an amazing chemical you can prepare yourself from baking soda and vinegar. You can cool a solution of sodium acetate below its melting point and then cause the liquid to crystallize. The crystallization is an exothermic process, so the resulting ice is hot. Solidification occurs so quickly you can form sculptures as you pour the hot ice.

How to Color Urine
Have you ever wanted to color your urine or wondered what causes urine to become colored? If so, you're in luck, because I have the answer! Here's a little applied color chemistry for your entertainment and experimentation pleasure.

How to Make Science Toys
You don't have to go to a store to get science and educational toys. Some of the best science toys are the ones you can make yourself using common household materials. Here are some easy and fun science toys to try.

How to Make Snow
If you want snow, but Mother Nature won't cooperate, you can take matters into your own hands and make snow yourself! This is the homemade version of real water ice snow, just like the snow that falls from the sky except without the need for clouds.

Ice Cream in a Baggie
Make a tasty treat and learn about freezing point depression, too! All you need are some basic ingredients and two ziploc baggies. It's easy, fun, and educational.

Invisible Inks
Make your own invisible ink so you can write and reveal secret messages. Get information about inks that are activated by heat, chemical reactions, and ultraviolet light.

Iron from Breakfast Cereal
Cold breakfast cereals are usually fortified with iron. What does the iron look like? Find out here!

Ivory Soap Microwave Trick
Microwave a bar of Ivory soap and watch it expand to over six times its original size. The foam trick is good clean fun, plus it can be used to demonstrate Charles' Law, physical change, and foam formation.

Kid-Friendly Elephant Toothpaste Demo
The elephant toothpaste demo produces a growing column of foam that looks like what you would get if an elephant squashed a giant tube of toothpaste. Here's a kid-friendly version of this classic chemistry demonstration.

Lava Lamp - Easy Kitchen Version
Lava lamps are interesting and cool. Have you ever wanted to make your own lava lamp? Lava lamps that you buy use high heat and toxic chemicals, but you can make a lava lamp at home using safe kitchen ingredients. Here's how.

Lemon Fizz Science Project
The lemon fizz project is a fun bubbly science project using kitchen ingredients that’s ideal for kids to try.

Magic Colored Milk Science Project
If you add food coloring to milk, not a whole lot happens, but it only takes one simple ingredient to turn the milk into a spinning color wheel. Here is what you do.

Magic Crystal Christmas Tree
A magic crystal Christmas tree is an easy crystal project you can do for the holidays.

Make Frozen Bubbles
Use dry ice to freeze bubbles solid so that you can pick them up and examine them closely. You can use this project to demonstrate several scientific principles, such as density, interference, semipermeability, and diffusion.

Mentos & Diet Soda Chemical Volcano
Candies and diet soda together can make a chemical 'volcano' with an eruption several feet high. If the normal baking soda volcano is too tame for you, give this project a try.

Mentos & Soda Project
Here's a look at the before, during, and after of a mentos and diet soda fountain. It's a great science project that is easy and safe to do.

Metamucil Flubber
This recipe makes a non-sticky sort of 'rubber' or gelatinous slime.

Mixture and a Compound from Iron and Sulfur
Do you know the difference between a mixture and a compound? Combine iron and sulfur to make a mixture and then react them to form a chemical compound.

Modeling Clay Recipes
There are several ways you can make homemade clay for modeling, making ornaments, and for other projects and crafts. Here are several clay recipes, including a refrigerator clay, a clay you bake to harden, one you coat for a glossy finish, and one that works up and stays pliable much like store-bought modeling clay.

Natural Toothpaste
It's fast, easy, non-toxic, and fluoride-free! Use these instructions to make your own natural toothpaste.

Non-Toxic Paste Recipe
This is the classic, simple flour paste.

Oobleck Recipe
Learn how to make Oobleck, a type of slime that has properties of both liquids and solids.

Paper Chromatography with Leaves
Most plants contain several pigment molecules, so experiment with different leaves to see the wide range of pigments.

Pepper and Water Science Magic Trick
The pepper and water science trick is one of the easiest magic tricks you can perform. Here's how to do the trick and an explanation of how it works.

Perfume Recipe
Perfume is a classic gift, but it's even better if it is a scent that you made yourself, especially if you package it in a beautiful bottle. Perfume you make yourself is free from synthetic chemicals and is fully customized to your personal taste. Here's how to make your own perfume.

Plastic from Dairy
Plastics are generally produced from petroleum, but they can come from other sources as well! All that is really required is the ability to join molecules containing carbon and hydrogen together, which you do whenever you curdle milk.

Poinsettia pH Paper
You can make pH indicator from poinsettia flowers, then use the indicator to make your own pH paper test strips.

Potato Clock - Make a Potato Battery to Power an LED Clock
A potato can function as an electrochemical cell or battery. It's fun to use a potato to power an LED clock.

Rainbow in a Glass Density Demonstration
Make a rainbow in a glass using colored sugar solutions with different densities. This project is very easy and safe enough to drink.

Recycled Paper
Make beautiful paper from recycled scraps of just about any paper project you can find. Learn how to add decorative items to your paper and prepare it for writing or stamping. This is a fun craft that teaches about recycling while making a useful handmade product.

Red Cabbage pH Paper
Learn how to make your own pH indicator test strips using red cabbage. This is a fun, safe, and easy chemistry project that you can do at home.

Rock Candy Instructions
Rock candy is candy made by crystallizing sugar. You can grow sugar crystals yourself, plus add color and flavor to make rock candy that you can eat.

Rubber Egg & Chicken Bones
You can make a hard boiled egg bounce like a rubber ball and cause chicken bones to become soft and rubbery. All you need is a common kitchen ingredient.

Salt and Vinegar Crystals
Salt and vinegar crystals are easy-to-grow non-toxic crystals that you can grow in a rainbow of colors. This crystal growing project is especially good for kids or beginners looking for quick and easy crystals.

Salt Crystal Geode
You can make a salt crystal geode in any color of the rainbow. The geode showcases the beautiful cubic structure of sodium chloride or table salt.

Sharpie Pen Tie Dye
You can create a pattern resembling tie-dye using colored Sharpie pens and rubbing alcohol. It's a fun and educational project that is great for kids.

Slime Recipe
There are lots of recipes for slime. Since most recipes are easy, look for one using ingredients you have on hand.

Slime Step-By-Step Instructions
Slime is easy and fun to make, plus it only requires glue, borax, and water. Here are step-by-step instructions for making classic slime, complete with photos.

Smoke Bomb Video Tutorial
Smoke bombs are the easiest and safest do-it-yourself firework project. You only need two inexpensive, non-toxic ingredients and it only takes minutes to make. Watch and learn how you can cook up a smoke bomb at home.

Smoke Ring Cannon
You can make a smoke ring cannon that shoots smoke rings in the air or even in water. A smoke ring cannon is a simple science project that uses easy-to-find household materials to illustrate fluid vortex formation in a fun way.

Snow Globe Using Benzoic Acid
Snow made from water crystals melts at room temperature, but snow made from benzoic acid crystals will still be decorating your snow globe when the weather warms up. Here's how to make a snow globe by precipitating benzoic acid to make the 'snow'.

Snow Ice Cream Recipes
Here is a collection of several quick and easy recipes for ice cream you can make using snow.

Stink Bomb Recipes
Stink bombs smell terrible, but they are also fun. Here are instructions for how to use everyday materials to make your own stink bombs.

Sugar and String Crystal Easter Eggs
Sugar and string Easter egg ornaments are a fun family craft idea, plus you can include a lot of science in this project. You can make smaller hollow string ornaments to hang or put in baskets or you can make a large crystal egg to use as an Easter basket.

Sugar Crystals - Make Your Own Rock Candy
Sugar crystals are also known as rock candy since the crystallized sucrose resembles rock crystals and because you can eat your finished product. You can grow clear sugar crystals with sugar and water or you can add food coloring to get colored crystals. It's simple, safe, and fun.

Supercooling Water
You can cool water below its stated freezing point and then crystallize it into ice on command. This is known as supercooling. These are step-by-step instructions for supercooling water at home.

Table Salt or Sodium Chloride Crystals
It's easy to grow your own table salt or sodium chloride crystals. All it takes is salt and boiling water. One method even yields crystals within a few hours. Here's what you need to know.

Things that Glow in Black Light
Black lights emit ultraviolet radiation, giving certain materials an eerie glow. Which materials? You can do a little experimental research or you can check out this list!

Water into Wine Demonstration
Turn a clear liquid into a red liquid, then back to clear again. This demonstration is commonly called turning water into wine or blood, and can be used to demonstrate acid-base indicators.

Wave Tank Instructions
Wave tanks use liquids with two different densities that won't mix together. Here's an easy, non-toxic method.

Yeast & Hydrogen Peroxide Volcano
Here's how to make a safe and easy chemical volcano using two common inexpensive household ingredients.

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