What animals are most popular? This project affords practice in data-collection, record-keeping and data-analysis through the investigation of this question.

This simple way to help your child understand story problems begins as a quick activity and turns into a study tool for years to come!

This Presidents Day, meet four of our country's most important heroes with this Mount Rushmore writing activity.

Invite your fourth grader to celebrate one of four holidays by creating a kid-friendly homemade Menorah, Advent Wreath, Kinara, or Diya!

Experiment about connection of senses of taste and smell. Using blindfold and noseplugs, administer blind taste test. Analyze results and organize data.

Observe how your brain works while it is focused on one thing, and how it works while you are distracted by another thing.

This science fair project uses paper chromatography to investigate whether black, brown, orange, and purple are pure colors or mixtures of other colors.

This science fair project idea explores substances that cause a bubble to last longer.

Science fair project that examines how winter storms form and the relationship between temperature, moisture and snow.

This science fair project idea investigates if fats add to the flavor of food.

This science fair project idea investigates how color affects temperature.

Free science fair project idea that examines the differences between cats and dogs. Analyze objective qualities rather than subjective ones.

How well can people recall what they have observed. Test your knowledge in this fun experiment.

The project determines which laundry detergent is best for cleaning clothes.

Examine the effect of pressure on carbonation in soda.

Which music genres have the fastest tempos? The slowest? This experiment determines if there's a relationship between beats per minute in a song and its genre.

This science fair idea examines hydrogel superabsorbent polymer crystals. They can absorb 500 times their weight in water. Can they absorb other liquids too?

This science fair project has kids conduct a blindfolded taste test to determine how smell influences our ability to taste foods.

How clean is the air we breathe? The answer might surprise you. Learn how to investigate local air quality with this cool science fair project.

This science fair project idea investigates the ability of different whitening toothpastes to whiten teeth.

The purpose of this science fair project is to study the properties of sugar and examine individual preferences for sugar and other sweeteners.

This science fair project idea examines liquids of different densities.

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.

This science project encourages students to investigate the Mozart Effect, the idea that classical music promotes learning.

Learn how to make an anemometer with step-by-step instructions in this cool science fair project idea for 4th grade.

This science fair project teaches kids experimental design and how to test if subjects can really sense if they are being watched.

Your fourth grader will love practicing his math facts with this fun computation game.

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.

This science fair project idea investigates the difference in reaction times between boys and girls.

The goal of this science fair project is to analyze differences between the taste and texture of frozen and fresh food.