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Using only straight-line sewing, your fourth can create a nifty felt pencil case perfect for his busy life.

Show your teen how to live green by transforming old CD cases into drawer dividers and help her get organized in the process.

This science fair project idea explores whether mint, known for its âcooling sensationâ really does lower temperatures.

Test out the pH levels of soil in your backyard versus soil in more wild environments to solve this science case.

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

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

Introduce your fourth or fifth grader to volume by having him build rectangular prisms, and then count each sugar cube to check his volume calculations.

Based on the concept of water's "freezing point," this activity entails the lowering of water's freezing point to chill ice cream!

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

Show your fifth grade scientist how to create a siphon using two buckets, plastic tubing, and water. Watch her astonishment as the water travels uphill!

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

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

Vincent van Gogh painted golden hued pictures of the harvest using bold lines and vibrant color. Your child can explore this style of art using oil pastels.

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.

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

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

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

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

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

These sparkling earrings look fancy but they're super simple to make using inexpensive craft items.

Make learning how to calculate surface area easy and fun using this simple hands-on approach.

Science fair project that examines how to grow bacteria in a controlled setting, using simple materials from around the home.

This project is a great way to explore variations in how to paint using watercolor.

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

Using wholesome, natural ingredients like oatmeal, honey and raisins your child can make homemade granola bars!

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

Using an empty plastic bottle, your child can create a newfangled version of this African percussion instrument.

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

Have fun making recycled paper using scraps of used paper in your home with this hands-on project.

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