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

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!

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

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

In this activity, your child will use two powerful questions to investigate a thought and the truth behind it. They will write and perform a skit using mindfulness and these important questions.

This game reinforces the meaning of the term "multiples" and is fast enough to hold the attention of your fourth-grader.

Young artists will combine two animals into one in this imaginative art-project-slash-game!

Your child can make a sweet and savory spinach strawberry salad; two ingredients that come together for a light and fresh summer dish!

In this activity, your child will experience multitasking, then mindfulness and compare the two in terms of productivity and calmness.

Introduce your fifth grader to the Kinara, part of the Kwanzaa tradition, by playing this fast-paced, two player game!

This science fair project compares the allelopathic affects of juglone, a chemical agent produced by the Black Walnut tree, on two plants.

Compare fractions in this two-player math game. The objective of the games is to work together to determine who has created the largest fraction.

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

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.

These easy-to-make felt friends are created by sewing two pieces of felt together with yarn and make great gifts for holidays such as Easter.

Competitors go head-to-head only this time it's a race to figure out the lowest common multiple of two numbers; an important step to working with fractions!

A pangram is a sentence that uses all the letters in the English alphabet. In this group game kids might just learn a thing or two about word choice in writing!

Create a tornado vortex in your kitchen in this 5th grade science experiment. All you need are two plastic bottles, duct tape, and a metal washer to begin.

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.

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.

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.

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

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

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

In this project, waves of vibrations are experimented with using water in glasses.

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

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

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