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2nd Grade Science Projects Activities

Use pepper and soap to discover some fun facts about the properties of water.

Pepper and Soap Experiment

Children have a naturally inquisitive mind. Foster their curiosity with a walk through an autumn field or park to answer age-old &ldquo;why&rdquo; questions. As you walk with your child, you can encourage them to ask questions.

Inspire Simple STEAM Exploration

This science fair project idea investigates if webbed feet help a duck (and others) swim.

Duck Feet

In this free science fair project idea, we learn about surface tension and how it can support mass—in this case, a floating paper clip.

Floating Paper Clip

Start your toy engines -- this is going to be a fast and friction-filled race!

Car Friction: The Science of Going Fast

This science fair project idea investigates emulsifiers that allow oil and vinegar to mix.

Like Oil And Vinegar

For this science fair project, kids will learn how to make a lemon battery. They can conduct this classic experiment using readily available materials.

How to Make a Lemon Battery

This classic children&#39;s game demonstrates how sound travels through air vs. through a solid.

How Sound Travels Through Air and Solids

This science fair project teaches about mold. Students will test different foods to see which grow mold the fastest.

Which Food Will Mold the Fastest?

Plants and light seem to be good buddies, but how far does the friendship really go?

Growing in the Dark: Plants and Light

In this air pressure science experiment with a balloon and a jar, children will use heat to create a partial vacuum and suck a balloon into a jar.

Air Pressure Science Experiment: Balloon and a Jar

Do earthworms like moisture or darkness? Find out as we explore the relationship between earthworms and light.

Earthworms and Light: Do Worms Prefer Darkness?

The goal of this evaporation experiment is to learn about how different external conditions affect drying time.

Rate of Evaporation

This project examines whether people's taste perception is influenced by what they see.

Taste Perception

This is a quick, easy science fair project that conveys the idea of density to preschool and early elementary children.

Density Experiment

Is it possible to trick the forces of nature that make your bubbles round to create a square bubble?

Is it Possible to Blow a Square Bubble?

Study the life cycle of the common blowfly as it relates to forensic investigation. Record the first time you see flies, maggots, and eggs.

Forensic Entomology and the Life Cycle of the Blowfly

In this cool engineering science fair project, kids learn how to build Hero's engine: an enlightening example of Newton's third law.

Hero's Engine: Example of Newton's Third Law

These science fair experiments demonstrate the chemistry of rust and the oxidation process.

Bust That Rust!

Learn about the layers of the Earth and make a model! Create a earth layer book, cake, or clay diagram.

What Are the Layers of the Earth?

Learn about this simple machine and make a pulley of your own to use for fun science trials.

Make a Pulley

Milk is made of water and fat; but how can you separate the two? Find out in this color changing milk experiment.

Color Changing Milk Experiment

Science fair project that examines what causes thunder and why a thunderclap sounds so loud. How is lightening related to the creation of sound waves?

A Thunderous Sound

In this project, build an insect model that shows how the head, thorax, and abdomen fit together! Learn insect anatomy by constructing a paper mache critter.

Build an Insect Model

This simple heat transfer experiment is a great introduction to the concepts of heat transfer and conduction.

Heat Transfer Experiment

Do you think you can blow down a sand castle with a mighty wind? Find out which material stands up best to erosion in this erosion experiment.

Erosion Experiment

This science fair project idea investigates how magnetism can defy the force of gravity.

Defying Gravity

In this science fair project, kids will be able to see where germs reside on their hands while gaining insight into the benefits of thorough hand washing.

Germs on Hands

Kids will make a beautiful rainbow in a jar and learn what enables different types of liquids to remain distinct in separate layers.

Rainbow in a Jar

Be a chemist for a day and study the simple reaction between sugar and heat. Try heating sugar and see what happens!

Heating Sugar

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