Help your fifth grader trace your family's roots and interview all the living mothers to create a makeshift, 3-D family tree!

Show your child how to concoct a simple duo of household ingredients that changes color as acids and bases are added!

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.

An hour glass, also known as a sand clock, keeps time. In this activity, your child will make her own sand clock and measure the time it keeps.

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.

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.

There are hundreds of properties in rocks which you can describe, so get your geology goggles on and get ready to rock your child's science skills.

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

Discover which fabrics shrink the most in the wash and why.

Construct batteries that make electricity from fruits with this fun science fair project.

examine how passive solar heating works, measure temperature in a parked car on a sunny day. ways to use passive solar heating as an alternative, energy

In this windmill model science project, you will build a windmill to learn about wheel-and-axle machines and how these simple machines are used to do work.

Science fair project that compares the biodiversity of fungi in different ecosystems by identifying species of fungi.

Chemistry isn't just incredible ... sometimes its edible! These crystal lollipops are a delicious introduction to chemistry concepts.

Science fair project which examines the relationship between frequency of spider web vibration and spider's response time.

Science fair project that helps you better understand density by comparing the relative densities of cans of Coke and Diet Coke.

What happens when colored beams of light mix? You might be surprised.

This science fair project idea creates a sedimentary rock and to investigate what takes place during the rock cycle.

In this popcorn experiment, students can explore how two things made out of the same material can have very different appearances and densities.

This science fair project idea investigates if fats add to the flavor of food.

This science fair project idea examines whether adding gelatin causes a solid to have a higher melting point and/or melt slower.

This science fair project idea explores whether factors such as temperature and concentration affect the pH of a solution.

This science fair project idea explores if the length of the string that an object is suspended on has an effect on how fast or slow it swings.

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

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.

Find out whether cast iron or regular teflon pans heat up faster and also retain their heat longer.

Which music genres have the fastest tempos? The slowest? This experiment determines if there's a relationship between beats per minute in a song and its genre.

Here's a fun activity that will introduce your fourth grader to the concept of frictionless motion by constructing a hovercraft.

Find out which type of sponge holds the most water.

This kinesthetic learning activity will help your fourth grader get a firm grasp on the immensity of the solar system.