In this activity, your learner will be challenged to create their own tic-tac-toe grid out of building blocks.

The possibilities are endless with this fun Halloween-themed STEM activity! With simple supplies, your child will experiment, adapt, and use their creativity while they build structures using different specifications.

Help your fifth grader execute this experiment involving a lit candle (submerged in water!) to show him the wonders of heat energy transference.

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!

Build a 3d animal cell model with this cool science fair project, which helps kids visualize and understand the function of a cell's parts and organelles.

In this science project, the center of gravity is explored.

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.

In this activity, your child will be challenged to create a device that protects an egg when it is dropped from a height of about 10 feet.

This science fair project idea investigates the ability of different whitening toothpastes to whiten teeth.

In this hands-on design challenge your child will make their very own Rube Goldberg Machine.

In this project, you'll build a model of the earth, complete with all seven continents and four major oceans.

In this design challenge, your child will make a bottle rocket using typical household items.

Have your child kick off their summer vacation by making a miniature water slide!

In this fun activity, your child will create their very own solar oven to bake s'mores!

In this design challenge, your child will create a parachute for a small toy using typical household items.

This science fair project idea explores how length affects the weight a bridge can hold.

This homemade barometer allows your little scientist to contemplate and compare different air and weather conditions.

What do ants eat? Kids find out by observing a colony of ants in this cool zoology science fair project for 4th grade.

What is a compound microscope? Kids find out by making one of their own in this cool science fair project.

In this activity, children will let their imagination run wild as they design and build a new planet in the solar system.

Challenge your learner to design and build a city of their own in this creative engineering activity.

This science fair project idea examines the reason boats are shaped and engineered.

In this science and engineering activity, children will explore types of tunnels and their purposes and then design and build a tunnel of their own.

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.

In this activity your child will create their very own marble maze!

Learners hypothesize about and experiment with soil erosion in this hands-on activity.

Why does honey crystallize? This science fair project project answers this question and identifies the variable that makes this sweet solute crystallize faster.