Search for Science Fair Projects

1000 Science Fair Projects with Complete Instructions

100 Science Projects For 2nd Graders

100 Science Projects For 2nd Graders

We understand the importance of early exposure to science and have handpicked a variety of science projects that will ignite 2nd graders' curiosity in the world around them.

Changing the Color of Flowers
Did you know you can change the color of flowers? With this science experiment, you can!
Easy
Watering Plants: Does it Make a Difference?
Do you want to know if watering plants makes them grow faster? Join us in this experiment to find out!
Easy
Powering Up with Potatoes
Learn how to make a battery from potatoes and measure the voltage and current it produces!
Easy
Rocket Film Canisters
Make a rocket fly sky high with just baking soda and vinegar!
Easy
Sprout Success: Soil Temperature Experiment
Can the temperature of the soil affect how fast a seed will sprout? Let's find out!
Easy
Does Milk Help Plants Grow?
Does milk help plants grow better than water? Find out in this fun science project!
Easy
The Greenhouse Effect in a Jar
Learn about the greenhouse effect with this simple experiment! See for yourself how the air in a jar gets warmer and warmer when exposed to sunlight.
Easy
Popping Popcorn
What makes popcorn pop? Find out how to make the perfect popcorn!
Easy
Make Your Own Fossil
Have you ever wanted to make something that lived millions of years ago? Now you can! Learn how to make your own fossil with this fun science project.
Easy
How Much Water is in an Orange?
Let's find out how much water is in an orange! We'll use a kitchen knife, paper plate, aluminum foil, and a weighing scale to figure it out.
Easy
How to Make Oobleck: Is it a Liquid or Solid?
Get your hands messy with this mysterious substance! Is it a liquid or a solid? Mix, squish and play to uncover its secrets!
Easy
Magic Milk Painting
See colors magically move in milk with soap! This fun experiment demonstrates surface tension in a vivid way!
Easy
Jumping Rice Krispies
Make Rice Krispies jump with static electricity!
Easy
Rock Candy: Sweet Science
Get ready to become a candy-making scientist! Grow your own giant sugar crystals and make rock candy you can eat!
Easy
Erosion: A Battle of Forces
Let's explore how the forces of nature shape the land around us! We'll use sand, water, ice, and wind to observe how erosion works.
Easy
Jiggly Earth: Exploring Liquefaction
Are there liquefaction concerns where you live? In this science project, find out what happens when you add water to different types of soil to mimic liquefaction.
Easy
Geode Rock Borax Crystal
Make your own sparkling geode rock crystals at home with Borax and see science in action!
Easy
Rocks and Minerals: Candy Geology
Have you ever wondered what the difference between a rock and a mineral is? Find out with this sweet experiment!
Easy
Sparkling Rainbow Crystal
Make your own sparkling rainbow crystals at home with Borax and see science in action!
Easy
Windy Wonders: Plant Growth
Have you ever wondered how wind affects plants? In this experiment, you'll find out by comparing two plants in different wind conditions.
Easy
Baking Soda Volcano
Create a fizzing, bubbling reaction with baking soda and vinegar! Learn about acid-base reactions and have fun while doing it!
Easy
Colors of Skittles Experiment
Did you know that some Skittles have a secret rainbow hiding inside them? It's true!
Easy
Explosive Elephant Toothpaste
Get ready to create a massive, bubbling tube of toothpaste using only a few simple ingredients! Don't miss out on the fun!
Easy
Growing Mold
What kinds of food does mold grow fastest on?
Easy
Cloud in a Bottle
With just a few simple steps, creating a cloud in a jar can help us understand the process of cloud formation!
Easy
Is Yeast Alive?
Have you ever wondered if the little brown grains of yeast you buy in the grocery store are alive? Let's find out!
Easy
Storing Bread Safely
Learn how to keep bread from spoiling by storing it in different environments!
Easy
Can You Taste With a Plugged Nose?
Can you tell the difference between an apple and a pear if you can't smell? Find out in this fun experiment!
Easy
Exploring Gender and Smell
Let's find out if there are differences in how males and females perceive smells!
Easy
Acid Rain and Algae
Let's find out if acid rain can hurt algae!
Easy
Build a Gauss Rifle
Make a magnetic chain reaction to launch a steel marble at a target at high speed!
Easy
Preserving Flowers with Sugar
Do you want to make your flowers last longer? Try adding sugar to the water!
Easy
Breakfast and School Performance
Does eating breakfast help students do better in school? Find out in this science project!
Easy
Anxiety and Memory
Does stress and anxiety affect our ability to remember? Find out in this fun science project!
Easy
The Invincible Soap Bubble!
Can you make a bubble that won't burst? Find out with this fun science project!
Easy
Does Highlighting Help Memory?
Does highlighting what you read help you remember more easily? Find out in this fun science project!
Easy
Moisture and Root Growth
Let's find out if the roots of a germinated green bean will grow towards moisture!
Easy
Territorial Hamsters
Do hamsters fight when placed in the same cage? Find out in this science project!
Easy
The Erosion of Tooth Enamel
Does drinking soft drinks cause tooth erosion? Find out in this science project!
Easy
Cooling Cars with Sunshades
Hot cars can be cooled down with sunshades! Find out which type of sunshade works best in this science project.
Easy
Evaporation: What Affects the Rate?
Ever wondered why water evaporates faster in some places than others? Find out in this fun science project!
Easy
Left-Handedness: A Science Project
Are you left-handed? Find out how many people are in the same boat as you in this science project!
Easy
The Chili Cricket Experiment
Can chili peppers repel and even kill crickets? Find out in this fun science experiment!
Easy
Adhesive Tape Strength
Let's find out which type of tape is the stickiest and requires the most force to pull off a steel surface!
Easy
The Painted Lady Butterfly
Watch the transformation of caterpillars into butterflies in just a few days!
Easy
Bouncing Soccer Balls
Let's find out which type of turf makes a soccer ball bounce the most!
Easy
Swimming Raisins
Have you ever seen raisins swim? Find out how to make raisins swim with this fun science experiment!
Easy
Drawing Skills and Gender
Do boys or girls have better drawing skills? Find out in this fun science project!
Easy
Examining Gender and Memory
Let's find out if girls or boys have better short-term memory!
Easy
Imagination and Gender
Can girls draw better than boys? Find out in this science project!
Easy
Speed Up Your RC Car!
Have you ever wanted to make your RC car go faster? In this science project, you will find out how to make your RC car go faster by changing the ...
Easy
Boys vs. Girls: Who Can Identify Facial Expressions?
Can you tell the difference between a happy face and an angry face? Boys and girls aged 15 are put to the test to see who can identify facial expressions ...
Easy
Does Height Affect Stride?
Do you want to know if your height affects how far you can walk in one step? Find out in this fun experiment!
Easy
Boys vs. Girls: Multitasking Abilities
Who can multitask better: boys or girls? Find out in this science project!
Easy
Plant Growth Enhancers
Let's find out if organic fertilizer helps mung beans grow faster than regular fertilizer!
Easy
Music and Moods
Does music affect how we feel? Find out in this science project!
Easy
Animal Night Vision
Can animals see in the dark? Find out if dogs, cats and monkeys can see color in the dark!
Easy
Music to My Ears
Can you tell the difference between musical notes? Find out if your left ear is better at recognizing musical notes than your right ear!
Easy
Investigating Stomata Density
Let's explore how the number of stomata on pine tree leaves changes depending on the amount of traffic in the area!
Easy
Sugar and Weight Gain
Can eating too much sugar make you gain weight? Find out by feeding baby mice apples and jelly beans!
Easy
Collecting Micrometeorites
Have you ever seen a shooting star? What if you could collect the tiny rocks that make them?
Easy
Acidic Water and Zebra Mussel Shells
Does acidic water make Zebra mussel shells softer? Let's find out!
Easy
Boys vs. Girls Reading Abilities
Let's find out if boys or girls are better at reading!
Easy
Taste Test Challenge
Can you tell the difference between sweet, sour, salty, and bitter? Find out in this fun science project!
Easy
Singers and Cold Water
Do singers sound better after drinking cold water? Find out in this fun science project!
Easy
The Soil-Grass Connection
Does the pH level of soil affect how well grass grows? Find out with this fun science project!
Easy
Keeping Warm: A Comparison of Clothing Materials
Let's find out which clothing material is the best at keeping us warm!
Easy
Plant's Favorite Color for Photosynthesis
Do plants have a favorite color for photosynthesis?
Easy
Levitating Train
Build a train that floats above a pair of magnetic tracks and can be pushed from one end to the other!
Easy
Colorful Emotions
Discover how colors affect our emotions by observing cars, clothes, and favorite colors!
Easy
Make a Pinhole Viewer
Make a simple pinhole viewer to see the images carried by light shining through a pinhole!
Easy
Nitrogen and Plant Growth
Let's find out how different levels of nitrogen affect the growth of bean plants!
Easy
The Soil Moisture Mystery
Can earthworms and water help plants grow? Join us in this experiment to find out!
Easy
Plant Height: Soil vs. Hydroponics
Can plants grown in soil or hydroponically reach the same heights? Let's find out!
Easy
Temperature and Algae Growth
Let's explore how temperature affects the growth of algae!
Easy
Plant Growth in and Out of Greenhouses
Let's find out if plants grow bigger in a greenhouse or without protection!
Easy
Build Your Own Telegraph Machine
Learn how to make your own telegraph machine and send secret messages to your friends!
Easy
Bacteria on Our Hands
Let's explore the microorganisms on our hands and the objects we touch! We'll use agar plates and a microscope to see what we can find.
Easy
Does Wire Wraps Affect Magnet Strength?
Can you make a magnet stronger by wrapping it with wire? Let's find out!
Easy
Build a Steam-Powered Rocket Boat
Make a boat that uses steam to power it through the water! Learn about energy and propulsion with this fun project.
Easy
What Makes Stars Twinkle?
Have you ever looked up at the night sky and wondered why stars twinkle? Find out in this fun science project!
Easy
Testing the Strength of Water Surface Tension
Can water hold up a weight? Find out by testing the surface tension of water with salt and temperature!
Easy
Temperature and Water Movement
Let's explore how hot and cold water affects the movement of water!
Easy
Can I Make Less Trash?
Can you tell which object is better for our environment? Test your recycling sense with this fun experiment!
Easy
Dominant Hand, Foot, Eye and Ear
Do you know which hand, foot, eye and ear you use the most? Find out with this fun experiment!
Easy
How Soil Affects Pinto Bean Growth
Let's find out how different types of soil affect the growth of a pinto bean!
Easy
Plant Gas Exchange
Let's find out what side of a plant leaf takes in gases!
Easy
Make Your Own Anemometer
Learn how to make a wind speed indicator with paper cups, cardboard, and a pencil!
Easy
Fats Facts Fun!
Learn about the differences between plant and animal fats with this fun science project!
Easy
Seeing Magnetic Field Patterns in 3D
Learn how to make a 3D magnetic field viewing bottle and explore the patterns of magnetic fields!
Easy
Balancing a Ball in Air
Suspend a ball in a stream of air and feel the force of the air pushing it back in!
Easy
Falling Feathers
Prove to yourself that Galileo was right! See if a feather and a coin fall at the same speed in a vacuum.
Easy
Acid Rain and Plant Growth
Does acid rain affect the growth of plants? Let's find out!
Easy
Comparing Soil Types
Let's compare the soil types in two different counties and see which one is better for growing crops!
Easy
Does Seed Size Affect Germination?
Can the size of a seed affect how fast it grows? Let's find out!
Easy
Plant Food Growth Experiment
Can different plant foods make plants grow faster? Find out in this fun experiment!
Easy
Sinking Through Water: How Does Shape and Mass Affect Velocity?
Have you ever wondered how the shape and mass of an object affects its speed when it sinks through water? Let's find out!
Easy
Comparing Bridge Strengths
Let's find out which bridge design can hold the most weight!
Easy
Glowing Bacteria
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!
Easy
Blocking Radio Waves
Can you figure out which materials block radio waves the most? Join us in this experiment to find out!
Easy

2nd Grade Science Project FAQ


What are some easy 2nd grade science fair projects?

Any one of these easy 2nd grade science fair projects will teach you important scientific concepts and help you have fun while learning. An easy science fair project is a great way to introduce the wonders of science to 2nd graders!

  • Changing the Color of Flowers

  • Rocket Film Canisters

  • Popping Popcorn

  • Make Your Own Fossil

  • Magic Milk Painting

  • Sparkling Rainbow Crystal

  • Making Oobleck: Liquid or Solid?

  • Baking Soda Volcano

  • Explosive Elephant Toothpaste

  • Growing Mold

Science fair project details right above the FAQ!


What is the best 2nd grade science project ever?

We love the Changing the Color of Flowers science fair project for 2nd graders. It's a great way for 2nd graders to explore transpiration, how water moves from a plant's stem to its flower. Plus, you'll get to watch the flower change colors right in front of you!

If you're looking for more 2nd grade science projects, check out the 2nd grade science fair projects at the top of this page! 

Check out more Best Science Fair Projects


What are some cool 2nd grade science fair projects?

Get ready to be amazed by these super cool science projects for 2nd graders! With just a few simple things, you can be fascinated by science and have tons of fun with these cool 2nd grade science projects!

  • Sparkling Rainbow Crystal

  • Rocket Film Canisters

  • Making Oobleck: Liquid or Solid?

  • Popping Popcorn

  • Make Your Own Fossil

  • Magic Milk Painting

  • Changing the Color of Flowers

  • Baking Soda Volcano

  • Explosive Elephant Toothpaste

  • Growing Mold

Science fair project details right above the FAQ!


What are 5 testable questions for 2nd 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 2nd grade?

These are our top 10 science projects for 2nd grade, with projects from Biology, Chemistry and Earth Science. These projects can be used as science fair project ideas or as a fun experiment to explore different areas of science!

  • Changing the Color of Flowers

  • Watering Plants: Does it Make a Difference?

  • Powering Up with Potatoes

  • Rocket Film Canisters

  • Sprout Success: Soil Temperature Experiment

  • Does Milk Help Plants Grow?

  • The Greenhouse Effect in a Jar

  • Popping Popcorn

  • Make Your Own Fossil

  • How Much Water is in an Orange?

Science project details right above the FAQ!


Can I do a 2nd 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

  • Chromatography reactions: Separate out colors!

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

  • 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!

Share this page: