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.

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.

Using butcher paper, ink and charcoal, your child will explore ancient motifs such as buffalo, bison and hunters by creating her very own cave painting.

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

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.

Create a fun hands-on game to practice long division, using magnetic numbers on a fridge.

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

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.

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

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

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

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

Challenge your fourth grader to try to recreate the geography of her state using just flour, salt, and water.

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

Using aluminum is a great way to recycle and make some shiny ornaments borrowing from this traditional Mexican art form. Here's an easy kids' activity!

Using low-tech supplies and a little extra ingenuity you can help your fourth grader create this unique, heartfelt Valentine card.

Here's a great activity to get your child using imagination and artistic skills to create a handmade vocabulary book, complete with illustrations!

In this activity, your child will get a review of addition, subtraction, multiplication and division using classic domino pieces.

Get ready to make a dollar...using playing cards! The first player to accumulate the amount of points equal to a dollar wins.

In this activity, learners will discover how to make a basic water filtration system using common materials found around the house or outside.

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

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

Create a beautiful piece of pottery by hand using a few simple ingredients, and learn about the Native American Acoma tribe while doing it!