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The objective of this science fair project idea is to examine light refraction as it passes through liquid crystals.

Conduct a simple science experiment to see if flowers from your garden pass the acid-base indicator test with this exciting chemistry activity.

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

In this activity, young learners will make a balance using a plastic hanger and weigh a variety of small objects using candy corn.

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

In this design challenge, your child will create a parachute for a small toy using typical household items.

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

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

Recreate the fantastic phenomena of solar eclipses with your child using just a flashlight, a quarter, and her very own face!

Science fair project in which you will start a fire from scratch without using matches or a lighter.

This science fair project idea explores whether a sundial is as accurate as an atomic clock when telling time.

Demonstrate the properties of pressure and surface tension to explain how water can stay inside an upside down glass using cardboard.

Is your little scientist up for a rocky challenge? Let them make their own geode rocks using eggs and epsom salts!

This cool science fair project teaches kids about temperature, density and buoyancy using balloons that float with normal air. No helium required!

Using a toy race car kids create a visual model of the Doppler Effect.

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

This cool and easy elementary school science fair project idea provides the basic information on the use of our senses to experience the world about us.

Demonstrate how you can make your own compass using a magnetized needle. It also allows you to compare magnetic north and geographic north.

This project determines the age of a tree using a growth factor chart instead of cutting the tree down to count the rings in its base.

Learn to solve a crime scene investigation using an important forensics tool: oblique lighting.

Using scherenschnitte, your science-savvy second grader will be able to create and display each part of a vegetable!

Sink or swim? Calculate the density of various fruits and vegetables using water and a kitchen scale.

In this physics project, learn about the relationship between light intensity and distance using a laser pointer, flashlight, and graph paper!

Science fair project in which you will attempt to throw a ball the greatest horizontal distance possible by using different angles.

Grow a garden with an environmentally-friendly twist by using plant scraps that usually get thrown away.

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.

In this fun science fair project, make two different scale models of our solar system using Astronomical Units and planets' relative size!

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

Amaze your kids by separating a salt and pepper mixture using an "electric spoon" charged with wool.

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