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Using an empty tennis ball can and a swimming pool, you will determine if it&#39;s possible to have a conversation under water.

Speaking Under Water

Determine if gender affects the ability to identify different smells.

Do Women Have a Better Sense of Smell?

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

Using A Dichotomous Key To Identify Trees

Gather some friends for a bubbly soda taste test do determine calories' role in your favorite drinks.

Soda Calories

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

How Important Are Cats' Whiskers?

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

Do Butterflies Prefer Sugar Water, Salt Water, or Plain Water?

The goal of this golf science fair science fair project is to determine whether the temperature of a golf ball affects its elasticity and its rebound.

Golf Science Fair Project: Temperature and Rebound

The purpose of this study is to determine if people can tell the difference between organic and conventional food from looking at, smelling and tasting it.

Is Organic Better?

In this experiment, your child will create two compost bins and see if he can determine what attracts fruit flies.

What Attracts Fruit Flies?

Can you increase the light and plant growth in your garden using mirrors? In this experiment, measure light reflection and find out!

Using Mirrors in the Garden: Measuring Light Reflection

In this fun science experiment, kids will determine the best method for ripening avocados and discover the cool chemical reaction that makes this possible.

Ripening Avocados

The objective of this science fair project idea is to determine if sound travels best through the air, water or a solid.

How Does Sound Travel?

Have your kid determine if a goldfish can be conditioned to expect food the same way Pavlov's dogs did with this fascinating science fair project.

Goldfish Behavior

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

Compost Ingredients

In this science fair project, kids observe the expansion of liquids when frozen and determine if some liquids expand more than others in the freezing process.

Do Some Liquids Expand More than Others When Frozen?

What chromosome combinations determine a fetus gender? Use probability to think about whether a sperm and ovum will create a male or female in this project.

Gender Probability: Male and Female Chromosomes

In this cool science fair project idea, kids conduct the ruler drop test on volunteers to determine whether reaction time can be improved with practice.

Reaction Time: The Ruler Drop Test

Can a toy car determine the strength of a magnet? In this cool magnet science fair project, young scientists will learn how to measure the strength of a magnet.

Magnet Science Fair Project: How to Measure the Strength of a Magnet

This science fair project idea measures out the sugar of various foods and find out whether people can correctly determine how much sugar is in common foods.

How Much Sugar?

Children hone their powers of observation using this worksheet template.

Recording Observations: What Do You See?

Check out this fun science fair project to make a vinegar and baking soda balloon and demonstrate how gas is created as a result of the chemical reaction.

How to Inflate a Balloon Using Baking Soda and Vinegar 

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

Musical Glasses

In this lesson, students will learn to program an animated figure using ScratchJr.

What Is Animation?

Construct and experiment with a periscope using reflected light rays to gather an image.

Periscope Construction

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

Creating Sound Through Vibrations

In this lesson, students will learn to create a simple algorithm using block code. The platform used for this activity is a website created by Google that provides free educational games that teach students to program using block code.

What Is an Algorithm?

Create a DIY Electromagnet! Using a 9v battery to create an electrical field around a nail, students explore electromagnetism in this cool science project idea.

DIY Electromagnet

In this science fair project you will make a model of a cell membrane using very simple material.

Cell Membrane

This science fair project idea determines the most effective method of preserving food.

Preserving Foods

In this activity, your child will be challenged to make a tower using paper cups.

Design Challenge: Creating a Cup Tower

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