4th Grade Engineering and Science Inquiry Resources : Page 5

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

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 determines which method of hand cleansing is the most effective.

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

Test whether plants can grow without sunlight and water.

Discover whether different amounts of water added into a wine glass will produce a different pitch when their fingers are rubbed along the rim.

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

Demonstrate how static electricity can cause an object to move. It also examines just how an object affected by static electricity will move.

This science fair project idea explores whether white light can be separated into different colors.

In this experiment, students find out what happens when a less-dense fluid interacts with a denser one, replicating the effect of cooler solid rock on magma.

Determine whether butterflies like to drink sugar water, salt water, or plain water.

Ever wondered how a plant drinks water? This science project will teach you how and help you create a beautiful floral display!

There are many benefits to bugs and insects. This science project shows how cockroaches, termites, and other critters benefit our planet.

This project determines what category of person is most likely to be ticklish.

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

Science fair project idea examines validity of mood ring predictions. Analyze accuracy of results, consider the impact of temperature

In this design challenge, your child will make a bottle rocket using typical household items.

This science fair project idea explores how the shape of a boat affects its density and how much weight it can float.

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.

In this project students experiment with making music using only glasses of water.

This science experiment examines the role of fat in food, especially in making bread rise and whipping cream.

This science fair project idea explores whether the process used to dry the beans we eat for food renders them unviable.

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

This science fair project idea produces sounds by creating vibrations using different objects.

In this science fair project, you'll make a "ghost" appear in a test tube, and learn about what happens when hot water and cold water interact.

In this experiment we will be determining whether birds prefer certain colors of seed.

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 investigates why the number of visible stars changes from place to place.

This science fair project idea investigates how optical distances change the apparent size of an object as seen through a magnifying lens.