This science experiment tests whether warm or cold water works best in making cut flowers last longer.

Will storing cucumbers and tomatoes in the fridge destroy their unique flavors? Find out in this science fair project idea!

What is biodiversity? Kids will study different areas of their backyards to see which is the most diverse to learn about biodiversity and random sampling.

4th graders construct an ocean food web to learn about consumers and trophic levels, food webs, and food chains in this cool ecology science fair project.

Enlist your fifth grader's help in making homemade mistletoe. Every time someone passes under it, he will express appreciation to another family member!

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.

Create a soda bottle garden that defies gravity! This hanging terrarium is housed in a soda bottle and perfect for crafty kids with a growing green thumb.

Help your child create a magical miniature garden in the most unlikely of places: a recycled plastic bottle!

In this activity, students will create a stop motion animation by creating a clay figure and taking a series of digital photographs.

Kids learn how to prevent erosion by growing grass. They'll test soil with grass against raw soil in this revealing science fair project idea for 4th grade.

This science fair project examines which fruits and/or vegetables will ripen prematurely when placed with ripe apples.

This science fair project teaches students about wilting and browning of salad greens.

This science fair project teaches students the differences between fruits and vegetables.

Here is a cool and easy science project to determine the rate of chlorophyll breaks down and how it affects the color change of grass from green to yellow.

Children reflect on ways they have cared for themselves, others, and the Earth before building a garden to share beauty with others in their community.

In this game, players will learn interesting facts about animal adaption and practice them using a fun matching card game!

Science fair project that compares the ecology of different soil samples by identifying which sample has the most invertebrates living in it.

You've heard all about oil spills, but can they really be that bad? After all, vegetable oil is in almost every yummy baking good from cookies to brownies.

Help your kindergarten science maven explore the water cycle without getting everything wet.

Show your love of nature with this pretty vase made with vines. It will be perfect for holding a floral bouquet!

Unlike other seed sprouting projects, this one allows kids to compare five different sprouts (either 5 herbs or 5 flowers) by watching them grow in a glove.

As school starts, there's no better time to get your kid off to a fresh, fun, organized start. Here's a desk craft for style-minded students!

Take advantage of the spring and summer sun in this arts and crafts activity that has your learner creating pretty flower prints.

Kids learn about examples of mechanical weathering and conduct an experiment with seeds and plaster in this cool geology science fair project idea.

In this activity, your child gets to peek behind the curtain of puzzle making as they create their very own "Spot the Differences" game!

Turn all those broken bits of plates, random buttons, or other odds and ends into a lovely flower pot for Mom on Mother's Day.

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

Perk up your front porch with this hanging vase craft, perfect for spring and for getting kids outdoors!

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!

Help your child understand surface tension by showing them how they can create a "skin" on top of water.