What are buttress roots? In this fun science project, make a model of a rainforest tree and learn how they help trees survive in the tropical rainforest!

The meaning of Thanksgiving can sometimes get lost among the fun of food and family. Discuss the meaning of Thanksgiving with this fun activity.

What's the science behind those out-of-sight roots? Find out if you can trick roots into growing in different directions.

Tap into your Irish roots by making an adorable leprechaun hat vase for St. Patrick's Day in this 3rd grade arts and crafts activity.

Use simple items to create a kindergarten "grow box" that lets a kid see just how salad plants send down their roots and grow underground.

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

Determine if gender affects the ability to identify different smells.

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

Teach your child about the importance and meaning behind bowing in Asian cultures and help her expand her cultural horizons with this fun activity.

Teach your child the meaning of recycle and reuse by repurposing plastic spoons as plant markers for your vegetable garden.

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

This November, it's elephant versus donkey! Does your third grader understand the meaning behind the animals political parties choose to represent them?

Make this delicious coconut cream pie recipe this Kwanzaa, and teach your kids the meaning of this important African-American holiday.

This Haggadah scroll activity is great for getting kids to practice handwriting, but it will also get them thinking about the meaning behind Passover.

Gather some friends for a bubbly soda taste test do determine calories' role in your favorite drinks.

In this experiment you observe and determine how well your cat uses his whiskers to navigate through a maze.

Determine whether butterflies like to drink sugar water, salt water, or plain water.

Many kids find themselves especially challenged by writing in third grade. Here's how you can help, using a technique called "storyboarding."

The objective of this science project is to determine the length of time for different seeds to germinate.

The goal of this golf science fair science fair project is to determine whether the temperature of a golf ball affects its elasticity and its rebound.

The purpose of this study is to determine if people can tell the difference between organic and conventional food from looking at, smelling and tasting it.

Here is a hands-on activity to help third graders understand the four points of a compass...and how we use them to get around.

In this experiment, your child will create two compost bins and see if he can determine what attracts fruit flies.

In this fun science experiment, kids will determine the best method for ripening avocados and discover the cool chemical reaction that makes this possible.

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.

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

Prepare for some scary Halloween counting practice! This game encourages players to knock down cylinders and then add to determine their scores.

The objective of this science fair project idea is to determine if sound travels best through the air, water or a solid.

Have your kid determine if a goldfish can be conditioned to expect food the same way Pavlov's dogs did with this fascinating science fair project.

The purpose of this science fair project is to determine which conditions and materials quicken the composting process to make the best compost.