Chemistry Projects, Lessons, Activities (Page 10)

Boyle's Law: Pressure vs. Volume of a Gas at Constant Temperature

Science Fair Project Idea

Scientific Method

This is a modern version of a classic experiment by Robert Boyle on the compressibility of gases. Boyle discovered the relationship between pressure and volume of gases that now bears his name. This project shows you a simple method for re-creating this famous experiment. Read more

Can You Change the Rate of a Chemical Reaction by Changing the Particle Size of the Reactants?

Science Fair Project Idea

Scientific Method

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

Cucumber Chemistry: Moisture capture with desiccants

STEM Activity

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Have you ever dropped your phone in the water and it stopped working? It would be great if you could somehow dry the phone from the inside before it got damaged, right? There are actually some substances that can absorb water from their surroundings. You might have noticed that when you buy new shoes, electronics or beef jerky, that often there is a little package inside that says “silica gel, do not eat.” This little bag of silica gel protects the product from water damage when it… Read more

Do Oranges Lose or Gain Vitamin C After Being Picked?

Science Fair Project Idea

Scientific Method

Are oranges highest in vitamin C when they are fresh from the tree (or, in a pinch, the grocery shelf)? Does the amount of vitamin C in an orange change over time, after it has been picked? In this science project, you will find answers to these questions by measuring the amount of vitamin C in a solution using an iodine titration method. Read more

Explore How Chromatography Can Unmix Mixtures

Science Fair Project Idea

Scientific Method

Did you know that mixtures can be unmixed? Chromatography is an analytical technique in chemistry to separate mixtures and identify each of its individual compounds. In this project, you will separate ink dyes found in different markers using a strip of paper, chalk and different liquids. By comparing different chromatography substrates and solvents, you will learn how different attractive forces between substances can affect the separation of a mixture into its individual components. Read more

Folded or Flat Paper Towel: Which One Absorbs Most?

STEM Activity

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It’s fall, which means flu season. We all know that washing hands a few extra times a day can help keep colds and flu at bay, so we wash hands frequently and use a paper towel…then another one, maybe even three or four to dry them off. Because who likes to go out with wet hands in cold fall weather, right? But could there be a way to conserve some of that paper, and get a paper towel to go the extra mile, allowing you to dry your hands with just one single sheet? This… Read more

How to Make the Boldest, Brightest Tie-Dye!

Science Fair Project Idea

Scientific Method

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

Make Your Own Kinetic Dough

STEM Activity

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Kinetic or Magic Sand is easy to find in stores, and fun to play with at home! But did you ever wonder what’s so magical about magic sand? You shouldn’t be surprised to hear that the magic is actually science! You can create your own version of this fun mixture with just a few kitchen ingredients. Get out your magic wand and get ready for some science! Read more

Measuring Enzyme Activity: Yeast Catalase

Science Fair Project Idea

Scientific Method

Yeast contains an enzyme, called catalase, that acts as a catalyst for the reaction that breaks down hydrogen peroxide into oxygen and water (2H2O22H2O + O2). Safety note: oxygen is a highly reactive gas, adult supervision recommended for this project. For your background research, be sure that you understand substrate, catalyst, reaction rate, catalase, enzyme saturation and protein denaturation. Use a solution of 3% H2O2 for the substrate. Construct an apparatus that allows you to collect… Read more

Race Your Marbles to Discover a Liquid's Viscosity

Science Fair Project Idea

Scientific Method

How do you like your mashed potatoes? Thin and whipped smooth? Or thick and mashed into chunks? Your mouth checks out not just the taste of your food, but its viscosity, or how it flows on your tongue, every time you take a bite! In this science fair project, you'll learn what viscosity is, and how to measure it in common liquids around your home. Read more

Chemistry Projects, Lessons, Activities (187 results)

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