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Third, Fourth, Fifth Grade Science Activities

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Building Up the Fizz in Soda

Examine the effect of pressure on carbonation in soda.

Discovering and Sorting Seeds in Fruits and Vegetables

In this project children discover, identify, and sort seeds from a variety of fruits and vegetables

The Ghost in the Tube

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.

Layers Upon Layers: Testing How Objects Interact with Liquids

In this science fair project, students test how objects float and sink in liquids of different densities.

The Role of Fat in Food

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

How Does Water Travel Up the Root of a Plant?

This science fair project explores how osmotic pressure forces water through the root up into the plant.

Water and Mosses

This science fair project will help students learn about non-vascular plants, such as mosses.

Anti-Gravity Water

This science fair project idea creates an air pressure differential and explores various differentials using varying materials.

Whatever Floats Your Boat

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

Soda Eruption

This science fair project what causes a soda eruption and what kinds of candy create this effect?

Which has the most sugar: Fruit Juice, Fresh Squeezed Fruit Juice, Organic Fruit Juice, or Soda?

This science fair project idea determines how much sugar is in each type of drink.

Soap Science

This science fair idea project identifies the active ingredients in soap and experiments with the properties of soap.

Examining Mass And Density Of Popped And Unpopped Popcorn

This science fair project idea compares the mass and density of objects.

Potato Chip Science: How Greasy Are Your Potato Chips?

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.

Endothermic and Exothermic Reactions Experiment

Learn about endothermic and exothermic reactions and energy exchange by experimenting with temperature change in chemical reactions.

Can Earthworms be Used to Recycle Kitchen Wastes into Fertile Garden Soil?

This project tests the feasibility of earthworms as a means of recycling kitchen waste into fertile garden soil.

How Does Smell Affect Taste?

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.

The Mohs Test: How to Compare the Hardness of Minerals

This science project uses Mohsâ Hardness Test to show kids how to compare the hardness of different types of minerals.

Color and Emotion Perception

This science fair project idea explores whether there is a connection to the color a person wears and the way their emotional state is perceived by others.

Defying Gravity

This science fair project idea investigates how magnetism can defy the force of gravity.

Teaching Worms

This science fair project idea attempts to train a worm to complete a simple maze in order to find out if worms can learn and remember.

How to Create a Visual Doppler

This science fair project creates a visual model of whatâs happening to sound waves as a car approaches and then leaves.

Creative Movements: What Causes the Wavelike Movement in an Earthworm’s Body?

In this free science fair project idea, we model the movement of worms and fish by analyzing their swim bladder and peristalsis movement methods.

How Do We Hear?

This science fair project idea explores the different parts of the human ear and models how the human ear reacts to sound waves.

Show the Direction of Magnetic Field Lines

Kids will learn how to show the direction of magnetic field lines and create a permanent model using iron filings in this great science fair project idea.

Create Your Own Amusement Park with Simple and Compound Machines

This fun elementary school science fair project idea helps students in designing an amusement park using their knowledge of forces and simple machines.

Chemical Energy in a Bottle

Looking for a fun project on energy? Check out this fun elementary school science fair project idea that demonstrates chemical energy in a bottle.

Soap Bubbles

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

How Do Seeds Hitchhike?

This science fair project examines how seeds hitchhike on animals and clothing.

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