2nd - 4th Grade Science Projects Resources : Page 2

In this cool science fair project idea, kids conduct the ruler drop test on volunteers to determine whether reaction time can be improved with practice.

How greasy are your potato chips? Students will use a reliable method to quantify greasiness and compare different brands in this great science fair project.

Find out whether packaged seeds actually do expire in this new science fair project idea.

This science fair project idea explores whether talking to a plant will help it grow.

Take a dive into the candy jar with this yummy science experiment.

Kids build a desert food chain, desert food web, and desert food pyramid in this cool science fair project to learn about trophic levels and consumers.

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

Can a toy car determine the strength of a magnet? In this cool magnet science fair project, young scientists will learn how to measure the strength of a magnet.

This science fair project idea creates a sedimentary rock and to investigate what takes place during the rock cycle.

What's the chemistry behind dyeing Easter eggs? Will adding vinegar to dye help the eggshell absorb the color? This colorful science project has the answers!

How does rust form? Kids will learn about the roles oxygen, water, and electrons play in rust chemistry in this cool science fair project idea.

Science fair project which determines if plants really do need water to grow, or whether they just need to be kept wet.

This science fair project idea investigates which objects float and sink in honey, water, and oil.

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

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

In this free science fair project, learn how to separate salt from water using heat. A great science project for elementary school kids.

In this fun science project, learn about what happens to cut fruit and experiment with how to stop apples from turning brown.

How does a compass work? What's a magnetic field? Kids will build their own compass at home to find the answers in this great science fair project idea.

How does smell affect taste? Ready your taste buds--in this project, you'll gather some test subjects and do a taste test to see how much smell affects taste.

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

This science fair project idea develops an understanding through experimentation of which shapes are the most structurally strong.

The objective of this science fair project idea is to determine if sound travels best through the air, water or a solid.

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.

Why doesn't the ocean freeze? Students answer this question by simulating the chemical composition and temperature of arctic waters in their own home.

Students will investigate the thermal conductivity of metals by learning how to measure thermal conductivity with this fun and easy science fair project idea.

Certain fruits can change gelatinâs ability to set. In this experiment, kids will discover what happens when gelatin meets pineapple enzyme.

This science fair project idea measures out the sugar of various foods and find out whether people can correctly determine how much sugar is in common foods.

In this simple science project, learn about what causes dew and what affects dew formation with a drinking glass, ice, and a soda bottle.

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.

This easy and inexpensive paper towel science project introduces kids to important physical concepts like cohesion, adhesion, and capillarity.