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Chemistry Science Projects (78 results)

An experienced chemistry professor used to say that it took about one explosion per week to maintain college students' attention in chemistry lectures. At that rate, we'd get in pretty big trouble with a lot of parents and teachers! Don't worry, our list of chemistry science and engineering projects still has lots of bubbles, fizzes, bangs, and color changes for you to explore.

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Science Buddies Original
Science Fair Project Idea
Alka-Seltzer® tablets fizzle furiously when dropped into water. The moment the tablet starts dissolving, a chemical reaction occurs that releases carbon dioxide gas. In this science project, you can even measure how long and loudly your tablet fizzes using Google's Science Journal app. Do you think you can make Alka-Seltzer fizz faster or more loudly by changing the temperature of the water? How big of a difference in the rate of a chemical reaction can temperature make? Read more
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- Less Details
Time Required Short (2-5 days)
Tinkering
Prerequisites None
Material Availability Readily available
Cost Very Low (under $20)
Safety Adult supervision may be needed when working with hot water solutions.
Science Buddies Original
Science Fair Project Idea
You know that water can exist in three separate phases: solid (ice), liquid (water), and vapor (steam). To change from one phase to another, you simply add (or remove) heat. When water boils, what happens to molecules (for example sugar or salt) that are dissolved in the water? Do they boil off too, or do they stay behind? Read more
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- Less Details
Time Required Short (2-5 days)
Tinkering
Prerequisites None
Material Availability Specialty items
Cost Very Low (under $20)
Safety Adult supervision required.
Science Buddies Original
Science Fair Project Idea
Have you ever had a refreshing bath using a bath bomb? A bath bomb is several ingredients mixed and molded into a shape, which becomes fizzy when it touches the water. It can be quite a relaxing experience, especially if your bath bomb has a nice fragrance or includes some bath salts. The fizz is the result of a chemical reaction taking place between different ingredients within the bath bomb. In this science project, you will get to make your own homemade bath bombs and explore how changing… Read more
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- Less Details
Time Required Average (6-10 days)
Tinkering
Prerequisites None
Material Availability A kit for this project is available from our partner Home Science Tools. See the Materials section for details.
Cost Low ($20 - $50)
Safety Adult assistance is required for using the oven.
Science Buddies Original
Science Fair Project Idea
The ingredients in Alka-Seltzer® tablets undergo a chemical reaction that produces carbon dioxide gas as soon as the tablets hit water. Do you think you can cause the tablets to produce gas faster by breaking them into smaller pieces before dropping them in water? Find out for yourself with this project. Read more
+ More Details
- Less Details
Time Required Short (2-5 days)
Tinkering
Prerequisites None
Material Availability A kit for this project is available from our partner Home Science Tools. See the Materials section for details.
Cost Low ($20 - $50)
Safety
Science Buddies Original
Science Fair Project Idea
Pennies are bright and shiny when they are new, but become quite dull with time. What causes such a drastic change? Oxygen in the air combines with the copper in the penny to form copper oxide, which makes the penny look dull and dingy. You can make the pennies look like new again by soaking them in water that is corrosive enough to strip off the copper oxide layer. It turns out, however, that the same process that makes the pennies shiny has bad consequences when it comes to copper pipes: it… Read more
+ More Details
- Less Details
Time Required Very Short (≤ 1 day)
Tinkering
Prerequisites None
Material Availability A copper test kit and other specialty supplies needed for this project are available through our partner Home Science Tools.
Cost Average ($40 - $80)
Safety Adult supervision is recommended.
Science Buddies Original
Science Fair Project Idea
This is a straightforward, fun project to measure the rate of the chemical reaction that occurs when Alka-Seltzer® tablets are plopped into water. You will track the volume of carbon dioxide gas produced at regular intervals after the reaction begins. How does changing the temperature of the water affect the production of gas? Read more
+ More Details
- Less Details
Time Required Short (2-5 days)
Tinkering
Prerequisites None
Material Availability A kit for this project is available from our partner Home Science Tools. See the Materials section for details.
Cost Low ($20 - $50)
Safety
Science Buddies Original
Science Fair Project Idea
Expanding gases are everywhere, from the kitchen to the cosmos. You've tasted their pleasures every time you've eaten a slice of bread, bitten into a cookie, or sipped a glass of soda. In this chemistry science fair project, you'll capture a gas in a stretchy container you're probably pretty familiar with—a balloon. This will allow you to observe the gas expansion and contraction as the temperature changes. Read more
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- Less Details
Time Required Very Short (≤ 1 day)
Tinkering
Prerequisites None
Material Availability Readily available
Cost Very Low (under $20)
Safety People with a latex allergy should not do this project. Use caution, as latex balloons are the leading choking hazard for children under 6.
Science Buddies Original
Science Fair Project Idea
Did you know that cosmetics companies employ teams of specialized scientists to develop and test each new line of makeup, perfume, lotion, or soap? This science project lets you be the cosmetics scientist. You will create your own lip balm right in your kitchen using a short list of ingredients, then test it, and follow up with some creative cosmetics science of your own! Read more
+ More Details
- Less Details
Time Required Average (6-10 days)
Tinkering
Prerequisites None
Material Availability This project requires a few special materials. See the Materials list for details.
Cost Low ($20 - $50)
Safety Minor injury is possible.
Science Buddies Original
Science Fair Project Idea
The clothes you wear are made of fibers that come from many different sources. Some fabrics are made from natural fibers, and some from manufactured or totally synthetic fibers. In this science fair project, you will explore how different fiber types react with dye. Are you dye-ing to find out which works best? Read more
+ More Details
- Less Details
Time Required Average (6-10 days)
Tinkering
Prerequisites None
Material Availability Specialty items: fiber-reactive dye and soda ash are necessary. See the Materials and Equipment list for more details.
Cost Low ($20 - $50)
Safety Safety goggles and rubber gloves are needed for some steps. See the Procedure for more details. Additionally, items that come in contact with soda ash should not be used with food afterward. See the Materials for more details.
Science Buddies Original
Science Fair Project Idea
Some plastics undergo an unusual transition, from a hard, glassy state to a soft, rubbery state, with increased temperature. For this project, you should do background research on the effects of temperature on different types of plastics. Make sure that you understand the difference between thermosetting and thermoplastic polymers. You should also look for information on the glass transition temperature (Tg) for different plastics. Pure polyvinyl acetate has a Tg of 28 C (about… Read more
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- Less Details
Time Required Average (6-10 days)
Tinkering
Prerequisites
Material Availability
Cost
Safety Adult supervision required for experiments using boiling water.
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