What are the effects of fertilizer on plant growth? What's the best fertilizer type (solid, liquid or powder)? Kids find out in this science fair project idea.

Word color association is just a fancy way to talk about the way we connect colors with words.

Find out whether soil amendments can improve soil conditions and help you grow a bigger beanstalk in this ecology experiment!

This fun experiment provides a concrete and visually striking illustration of photosynthesis.

Saturn is the ringed planet in our solar system, a gas giant with rings made of ice and dust. Let's make a cool scale model with an old CD and some glitter!

Put a twist on traditional oil painting with this fun science activity that you and your first grader can do together.

Introduce your child to the amazing, almost magical phenomenon of static electricity!

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

In this project children discover, identify, and sort seeds from a variety of fruits and vegetables

The goal of this science fair experiment is to demonstrate the effects of air pressure on objects and analyze applications of air pressure principles.

Show your child how and why the microwave works, while demonstrating just how strangely foods can behave while inside the crazy cooker.

Turn an abstract lesson into a practical craft with the fun and colorful creation of dough earth layers!

In this activity, students will be challenged to describe and count the ways a toy moves from one position on a grid to another.

Combine the science of physics with the fun of playing spy. Your young detective can make his own tiny looking glass. It's simple to make!

This science fair project idea provides evidence that air is everywhere and takes up space.

In this project children practice the scientific method while playing with puffy paint.

Did you ever think you could make colors disappear right before your eyes? This science experiment is just like a magic trick: now you see it, now you don't!

Experiment about connection of senses of taste and smell. Using blindfold and noseplugs, administer blind taste test. Analyze results and organize data.

In this plastic wrap science fair project, you'll learn about polymer permeability and find out which plastic wrap keeps food from dehydrating best.

This science fair project uses paper chromatography to investigate whether black, brown, orange, and purple are pure colors or mixtures of other colors.

Gymnosperms are coniferous trees that reproduces using pine cones to spread seeds. Check out this simple pine cone experiment to learn about the process!

Make a seed bomb and let your junior guerilla gardener spread flowers far and wide.

Chemistry isn't just incredible ... sometimes its edible! These crystal lollipops are a delicious introduction to chemistry concepts.

Why does purple cheese look nasty? Because color plays a big part in how we perceive the taste of different foods. Are birds just like us in this respect?

Wiggly worms are known for staying buried in the soil, but how does that affect plants? Are earthworms and plant growth related?

Find out whether putting something on top of a plant will inhibit its growth.

This science fair project idea investigates the hardness property of minerals.

Grow potatoes in a plastic bag—easy to grow and harvest, and yummy to eat!

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.

This craft is a great way to explore the fascinating world of spiders and their webs as you collect spider webs from around your house with your third grader.