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

Help your curious third grader construct a dazzling spinning wheel that will teach him about the science behind colors while providing some silly entertainment!

In this CD hovercraft science project, students will construct their own DIY hovercraft.

This science fair project idea creates a sedimentary rock and to investigate what takes place during the rock cycle.

What is the best stain remover for clothes? In this fun and easy science fair project idea, students will identify the best method for laundry stain removal.

Let your young scientist explore a brave new world of sound with an experiment that just requires a handful of common household items.

Explore solids and liquids with your young scientist by making gluep, a goopy substance that can behave like both a solid and a liquid!

Make a lei and bring a touch of the tropical lifestyle into your home!

This science fair project idea investigates which objects float and sink in honey, water, and oil.

How does rust form? Kids will learn about the roles oxygen, water, and electrons play in rust chemistry in this cool science fair project idea.

Your kid will be captivated as she watches liquids change color before her very eyes during this fun science project that introduces some chemistry basics.

In this science fair project, kids will be able to see where germs reside on their hands while gaining insight into the benefits of thorough hand washing.

In this fun design challenge, your child will get creative with making structures out of toothpicks and gumdrop candies.

In this design thinking activity, your child will choose an animal to research, learn about the animal’s habitat, and then replicate the animal's habitat using household items.

Create a brush pile to help wintering wildlife stay warm and cozy through the winter.

I scream, you scream, we all scream for homemade spearmint ice cream!

Learning about how plants grow is a building block in the early grades science curriculum. Put a fun twist on this life science concept with these cup monster friends!

Help kids tap into their inner inventor by teaching them how to make peanut butter through trial, error, and lots of taste testing!

Here's a great activity that uses corks and toothpicks to create a fleet of floating boats. Which design makes for the most seaworthy vessel?

Help your child learn about animal classification with this fun and delicious activity.

This science project challenges students to study deer behavior in their natural habitat- the feeding patterns, social behaviors, male to female ratio, etc.

Kids explore how a single movable pulley can confer a mechanical advantage over a fixed pulley in this cool engineering science fair project for 2nd grade.

This science fair project idea explores the different properties of matter.

How do you tell time without a watch? Use the sun! This simple activity will show your child how to build his own sundial.

Try this simple activity with your child to guesstimate the age of a tree in your yard and nurture her developing math skills while you're at it!

This science project challenges students to learn about and classify weeds and discover new practical uses for weeds.

Tired of gum with flavor that lasts for just a couple of minute? Put gum to the test with this chewy science experiment!

You don't need to head to the Arctic to experiment with life in an igloo. Learners can build their own ice igloo at home from water and empty milk containers.

Enjoy those warm spring and summer nights with your child while teaching some basic astronomy at the same time.

This is a quick, easy science fair project that conveys the idea of density to preschool and early elementary children.