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4th grade
Physical Science
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Does Ultraviolet (UV) Light Pass through Some Colors More than Others?
Science Project
Does Ultraviolet (UV) Light Pass through Some Colors More than Others?
The purpose of this science fair project is to explore whether UV light passes through some colors and not others by looking at blue, red, purple, and clear.
4th grade
Science
Science Project
Inverse Square Law: How Does Distance Affect the Spreading of Light?
Inverse Square Law: How Does Distance Affect the Spreading of Light?
Science Project
Inverse Square Law: How Does Distance Affect the Spreading of Light?
How does distance affect the spreading of light? Kids see diffraction and the inverse square law of light in action with this great science fair project idea.
4th grade
Science
Science Project
Temperature, Air Humidity and Static Electricity
Temperature, Air Humidity and Static Electricity
Science Project
Temperature, Air Humidity and Static Electricity
What's the relationship between temperature, air humidity and static electricity? Kids will find out with this free static electricity science fair project.
4th grade
Science
Science Project
Thermal Conductivity of Metals: Which Metal Is the Best Conductor of Heat?
Thermal Conductivity of Metals: Which Metal Is the Best Conductor of Heat?
Science Project
Thermal Conductivity of Metals: Which Metal Is the Best Conductor of Heat?
Students will investigate the thermal conductivity of metals by learning how to measure thermal conductivity with this fun and easy science fair project idea.
4th grade
Science
Science Project
The Best Stain Remover for Clothes: Testing Laundry Stain Removal
The Best Stain Remover for Clothes: Testing Laundry Stain Removal
Science Project
The Best Stain Remover for Clothes: Testing Laundry Stain Removal
What is the best stain remover for clothes? In this fun and easy science fair project idea, students will identify the best method for laundry stain removal.
4th grade
Science
Science Project
Microwaving Liquids: Dielectric Heating
Science Project
Microwaving Liquids: Dielectric Heating
Explore how dielectric heating comes into play when microwaving various liquids in this science project. This test will help you understand how microwaves work!
4th grade
Science
Science Project
Changing the Period of a Pendulum
Changing the Period of a Pendulum
Science Project
Changing the Period of a Pendulum
Is it amplitude? Weight? Length of string? Kids will discover what factors changing the period of a pendulum depends on in this fun and easy physics experiment.
4th grade
Science
Science Project
Doing Forensics with Paper Chromatography!
Doing Forensics with Paper Chromatography!
Science Project
Doing Forensics with Paper Chromatography!
This science fair project uses paper chromatography to investigate whether black, brown, orange, and purple are pure colors or mixtures of other colors.
4th grade
Science
Science Project
Can Hydrogel Crystals be Used as a Sensitive Humidity Indicator?
Can Hydrogel Crystals be Used as a Sensitive Humidity Indicator?
Science Project
Can Hydrogel Crystals be Used as a Sensitive Humidity Indicator?
This science fair project focuses on a polymer called hydrogel super absorbent crystal which absorbs water, swelling to many times its original size.
4th grade
Science
Science Project
Conductor or Insulator?
Conductor or Insulator?
Science Project
Conductor or Insulator?
This science fair project idea determines what household items are good conductors of electricity.
4th grade
Science
Science Project
Color and Heat Absorption
Color and Heat Absorption
Science Project
Color and Heat Absorption
The objective of this science fair project is to observe the differences in heat absorption for darker colors vs. lighter colors.
4th grade
Science
Science Project
Principles of Air Pressure
Principles of Air Pressure
Science Project
Principles of Air Pressure
The objective of this science fair project is to examine the basic principles of air pressure using simple materials like a balloon, straw and string.
4th grade
Science
Science Project
Layered Liquids (A Study in Density)
Layered Liquids (A Study in Density)
Science Project
Layered Liquids (A Study in Density)
This science fair project idea examines liquids of different densities.
4th grade
Science
Science Project
Microwave Madness
Microwave Madness
Science Project
Microwave Madness
This science project idea examines the effect of microwaving on various objects.
4th grade
Science
Science Project
Magnets and Temperature: Does the Temperature of a Magnet Affect its Strength?
Magnets and Temperature: Does the Temperature of a Magnet Affect its Strength?
Science Project
Magnets and Temperature: Does the Temperature of a Magnet Affect its Strength?
Does the temperature of a magnet affect its strength? Learn about the relationship between magnets and temperature with this cool physics science fair project.
4th grade
Science
Science Project
All About Air Pressure
All About Air Pressure
Science Project
All About Air Pressure
The goal of this science fair experiment is to demonstrate the effects of air pressure on objects and analyze applications of air pressure principles.
4th grade
Science
Science Project
How to Demagnetize a Magnet
Science Project
How to Demagnetize a Magnet
Learn how to demagnetize a magnet and how physics can explain this phenomenon with this enlightening science fair project.
4th grade
Science
Science Project
Here's To Your Heart
Here's To Your Heart
Science Project
Here's To Your Heart
The project determines determine if a sports drink affects the heart rate of a student athlete during exercise.
4th grade
Science
Science Project
How to Make a Steam Powered Rocket Boat
How to Make a Steam Powered Rocket Boat
Science Project
How to Make a Steam Powered Rocket Boat
Kids will learn how to make a steam powered rocket boat, also called a putt putt boat or a pop pop boat, in this great science fair project for 4th graders.
4th grade
Science
Science Project
Heat from Light Bulbs
Science Project
Heat from Light Bulbs
This light bulb science project includes step-by-step instructions for testing the heat from different light bulbs.
4th grade
Science
Science Project
How to Make an Anemometer
How to Make an Anemometer
Science Project
How to Make an Anemometer
Learn how to make an anemometer with step-by-step instructions in this cool science fair project idea for 4th grade.
4th grade
Science
Science Project
Inverted Images
Inverted Images
Science Project
Inverted Images
Learn about magnifying glasses, concave lenses and inverted images by sending rays of light through a magnifying glass in this cool science fair project!
4th grade
Science
Science Project
A Single Movable Pulley and Mechanical Advantage
A Single Movable Pulley and Mechanical Advantage
Science Project
A Single Movable Pulley and Mechanical Advantage
Kids explore how a single movable pulley can confer a mechanical advantage over a fixed pulley in this cool engineering science fair project for 2nd grade.
4th grade
Science
Science Project
Up Periscope or Down?
Up Periscope or Down?
Science Project
Up Periscope or Down?
In this project, a model of a submarine is built to simulate the buoyancy and displacement of water and air.
4th grade
Science
Science Project
One-Man Drinking Glass Band
One-Man Drinking Glass Band
Science Project
One-Man Drinking Glass Band
In this project, waves of vibrations are experimented with using water in glasses.
4th grade
Science
Science Project