4th Grade Science Project FAQ

What are some easy 4th grade science fair projects?

Any one of these easy 4th grade science projects will teach you important scientific concepts and help you have fun while learning. An easy science project is a great way to introduce the wonders of science to 4th graders!

• Sinking Through Water

• Egg with Vinegar

• Does Milk Help Plants Grow?

• Magic Milk Painting

• Breakfast and School Performance

• Plant Growth and Water

• Sparkling Rainbow Crystal

• Plastic Milk

• Does Dog Saliva Kill Bacteria?

• Super Hero Egg Shells

Science fair project details right above the FAQ!

What is the best 4th grade science fair project ever?

We love the Plastic Milk science project for 4th graders. It demonstrates the effect of heat and acid on milk proteins and teaches students about the precipitation of solids and acids and bases.

If you're looking for more 4th grade science projects, check out the 4th grade science projects at the top of this page! 

Check out more Best Science Fair Projects →

What are some cool 4th grade science projects?

Get ready to be amazed by these super cool science projects for 4th graders! With just a few simple things, you can be fascinated by science and have tons of fun with these cool 4th grade science projects!

• Create a Tornado in a Bottle

• Plastic Milk

• Egg with Vinegar

• Does Dog Saliva Kill Bacteria?

• Super Hero Egg Shells

• Magic Milk Painting

• Electrifying Lemon Battery

• Making Oobleck: Liquid or Solid?

• Egg Drop Project

• Colors of Skittles Experiment

• Cloud in a Bottle

Science fair project details right above the FAQ!

What are 5 testable questions for 4th grade?

A testable question is a question that we can answer through a science experiment. To do this, we do a control science experiment, then we change one thing in the experiment to see how it affects what happens. This is how we can discover the answer to our question!

• What makes a cloud form?

• Can drink and food taste different just by changing its color?

• Does the color of light affect photosynthesis?

• Does temperature affect seed sprouting?

• What makes popcorn pop?

Here are more testable questions along with their science projects →

What are the top 10 science projects for 4th grade?

These are our top 10 science projects for 4th grade, with projects from Biology, Chemistry and Physics. These projects can be used as science fair project ideas or as a fun experiment to explore different areas of science!

• Plastic Milk

• Egg with Vinegar

• Create a Tornado in a Bottle

• Shrimp Habitat Preferences

• Breakfast and School Performance

• Exploring the Relativity of Time

• Plant Growth and Water

• Does Dog Saliva Kill Bacteria?

• Sinking Through Water

• Super Hero Egg Shells

Science project details right above the FAQ!

Can I do a 4th grade science fair project in a day?

Yes! Quick experiments can be a great option for a science fair project! If you want to explore quick reactions, we have science project ideas on various topics to get you started.

• Acid-base reactions: Mixing acids with bases quickly makes carbon dioxide gas!

Make a rocket fly sky high with just baking soda and vinegar! Rocket Film Canisters

Learn how to make your own acid/base indicator using red cabbage and use it to test different fluids! Make Your Own PH Indicator

• Chromatography reactions: Separate out colors!

Did you know that some Skittles have a secret rainbow hiding inside them? Colors of Skittles Experiment

Have you ever wondered why leaves change color in the fall? Let's find out by using chromatography to separate the colors of a green leaf! Uncovering Fall Colors

• Heat reactions: Heat speeds things up!

Do you want to find out which color candle burns the fastest? Which Candle Burns the Fastest?

What are some hands-on ways to find inspiration for my science fair project?

Science museums are great places to explore if you're looking for inspiration for your next science fair project or just want to learn more about science. Science museums, natural history museums, space museums, and discovery museums are all great places to do that! You can discover all sorts of interesting things about science and find cool project ideas for science fairs.

Don't worry about how much it costs to get into the science museum, as there may be free admission days or free passes to a science museum near you! Check your credit card for offers, your local library for free museum passes, and nearby science museums for free entrance days.

Find a science museum near you and prepare to be awed by all that you can learn there! I always learn something new and am inspired whenever I go to a science museum!

How do I start a science fair project?

Science fair projects are a fun and unique way to discover science by asking a question and doing a science project. We'll help you find a science fair project idea and guide you through the process of doing and presenting your science fair project with Science Fair Coach's Science Fair Project Guide.

What should I do after I have a science fair project idea?

If you have a science fair project idea, Science Fair Coach can help you turn it into a full science fair project! Starting at Science Fair Coach's Guide to the Scientific Method, we'll guide you through every step of the scientific method, from designing and conducting your experiment to collecting and analyzing your findings. Then, we'll help you showcase your results on a science fair board for others to learn from and enjoy.

How do I make a science fair board?

Your science fair board is where you show off your science fair project for everyone to see and learn from. With Science Fair Coach's step-by-step guide, you can make sure your science fair board stands out and impresses at the science fair!

Where can I find a science fair competition?

Science fair competitions are an excellent opportunity to explore science. One of the of the premier science advocacy organizations, the Society for Science, is associated with more than 400 science fair competitions in almost every US state, as well as over 70 other countries, regions, and territories. You can find out if there's a Society of Science affiliated science fair near you!

The WWW Virtual Library: Science Fairs website also has a collection of science fairs from all over the world, as well as national, state, regional, local, and virtual competitions!