4th Grade Science Projects Activities : Page 4

What are buttress roots? In this fun science project, make a model of a rainforest tree and learn how they help trees survive in the tropical rainforest!

This science fair project idea compares biodiversity between drops of water.

This science experiment tests if dog saliva can really help heal wounds.

Science fair project examining barometric pressure, and how it can be used to predict the weather. How does atmospheric pressures relate to weather conditions?

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

This science fair project demonstrates the magic of arches by challenging students to stack telephone books on top of eggs without breaking them.

This science fair project idea identifies trees using a dichotomous key.

Examine the effect of pressure on carbonation in soda.

In this project, all you need is a protractor to learn how to use the altitude of Polaris to find latitude on Earth. Polaris is also known as the North Star.

Science fair project that examines the different types of precipitation, evaluates the density of snow and calculates the ratio of snow-to-liquid.

Check out this cool science fair project idea to explore which other common animals besides scorpions glow under a UV Black light.

Is cleaning with lemon effective? Get ready to give this science project some elbow grease and find out if acidic lemons can be used as a cleaning agent.

This science fair project idea examines whether plants are still able to grow normally if they are turned upside-down.

Science fair project that examines how to grow bacteria in a controlled setting, using simple materials from around the home.

This science fair project on testing water hardness is a great introduction to practical chemistry. Test and learn the difference between hard and soft water.

Observe corn seed germination to learn about dicots and monocots and how plants grow from seeds to seedlings to full-grown plants!

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

The purpose of this science fair project is to determine which conditions and materials quicken the composting process to make the best compost.

This science fair project idea explores the different properties of matter.

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

This science experiment tests whether warm or cold water works best in making cut flowers last longer.

Science fair project that determines whether cooling eggs helps them be peeled more easily. Compare the time it took to peel each egg.

Do different types of oil mix or stack? Find out in this science fair project idea!

Examine which metal conducts more heat by boiling water in 3 pans made of aluminum, copper, and stainless steel.

In this experiment you observe and determine how well your cat uses his whiskers to navigate through a maze.

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.

In this science fair project, learn how a mineral streak is made and how it can help identify an unknown mineral.

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.

Kids will learn about the interaction of lactose and lactase in milk and discover why we describe enzymes as catalysts in this fun science fair project.

This science fair project idea examines which type of insulation holds in the most heat.