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

In this activity, your child will be challenged to build a tall tower out of building bricks! The instructions include questions prompts to guide students through the design challenge.

Make a wish upon a tree with this craft that also helps your child learn more about Chinese culture.

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

Could there be toxic chemicals lurking in the cupboards and closets of your home?

This science fair project demonstrates the magic of arches by challenging students to stack telephone books on top of eggs without breaking them.

Many ancient cultures used the rising or setting sun to create calendars. Observe the setting sun once a week to come up with your own solar calendar!

This science fair project examines how seeds hitchhike on animals and clothing.

The objective of this science fair project is to observe the differences in heat absorption for darker colors vs. lighter colors.

Have you ever wondered how many numbers most people can memorize? Test your friends to find out!

Science fair project which determines whether people are more likely to follow rules if they are easy to understand.

Create a mini plant habitat with your kid to help teach him what it takes to make an ecosystem work.

Science fair project that determines whether tapping a pomegranate with a spoon helps it release its seeds.

In this science fair project, apply the principles of leverage and force by building six simple machines designed to set weights in motion.

Have you ever noticed the way a dropped stone makes a fun pattern in a pond or lake? What's the science behind these splashy occurrences?

This season is a great time to explore the many shapes, sizes, and species of evergreen trees. Download our "field guide" activity and learn more!

Prove that the Earth is not flat. The objective of this science fair project is to measure the angle of the sun and calculate the circumference of the Earth.

An home science experiment for older students that teaches about the science behind heat.

In this outdoor science activity you'll find tips on how to create a nature journal by choosing a native plant or animal and tracking that species.

Learn about the fruit fly life cycle in this experiment. Capture fruit flies to examine various stages of insect metamorphosis.

How sensitive is your skin? Here's a fourth grade science experiment that lets your child figure it out.

Here's a fun at-home activity that will help your child strengthen math skills using high and low temperature data, and become a master temperature tracker!

The purpose of this science fair project is to study the properties of sugar and examine individual preferences for sugar and other sweeteners.

This activity is a great way to stretch the boundaries of your child's imagination and build up important critical thinking skills.

Soil and energy don't go together, right? That would be as bizarre as a pairing of peanut butter and marshmallows! Well, actually...

This recipe makes bubbles that not only blow up nice and big, but do tricks and experiments! How do you do it? It's not a secret, it's science!

Protozoa and ciliate and amoeba, oh my! The objective of this science fair project is for students to use a microscope and identify microscopic life.

Make water and clay play a little more scientific with this hands-on experiment that teaches displacement and shows how an object's shape affects its buoyancy.

Science fair project idea that examines different physical characteristics of a chosen animal. Make educated guesses about evolution based on animal's form.

Do you think you could walk around upside down -- with your feet in the air and your head on the ground?