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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.

Halloween STEM Building Challenge

The objective of this science fair project is to explore the relationship between acidic and basic compounds.

Bleeding Paper

In this project combining nature, art, math, and science, children make rubbings of leaves then observe shapes and structures and sort the leaf images.

Leaf Rubbings: Shapes and Patterns

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

Using A Dichotomous Key To Identify Trees

This science fair project idea investigates emulsifiers that allow oil and vinegar to mix.

Like Oil And Vinegar

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.

A Single Movable Pulley and Mechanical Advantage

Learn about magnifying glasses, concave lenses and inverted images by sending rays of light through a magnifying glass in this cool science fair project!

Inverted Images

This is a fun and inexpensive project and it's a great way for your child to build basic geometry skills, like shape recognition and pattern/angle familiarity.

Make a Geoboard!

Kids will conduct a cool limewater carbon dioxide test that can be performed with common household materials to learn about the chemistry of this common gas.

The Limewater Carbon Dioxide Test

In this fun science fair project idea learn about universal solvents and solutes and find out the solubility of several common liquid substances.

Testing the Solubility of Common Liquid Solvents

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

Design Challenge: Make a Rube Goldberg Machine

Kids construct a single fixed pulley system to learn how pulleys can make work easier in this cool physics and engineering science fair project idea.

The Single Fixed Pulley System

How does a kazoo, the strings of a guitar, or the speaker of a radio make sound? The purpose of this science fair project is to show how vibration makes sound.

How A Kazoo Makes Sounds

This science fair project idea  determines what household items are good conductors of electricity.

Conductor or Insulator

This science fair project idea determines what household items are good conductors of electricity.

Conductor or Insulator?

This science fair project idea explores how much force is needed to move a lever at different distances from the fulcrum.

Force and the Fulcrum

This science fair project introduces children to static electricity and the idea that electricity is more than lights and plugs.

Exploring Static Electricity with Sticky Balloons

This science fair project idea demonstrates how air resistance contributes to denser objects falling faster than less dense objects.

Gravitational Forces for Preschoolers

Why do ants like sugar? Do ants like artificial sweeteners too? Kids find out with this great inquiry-based science fair project.

Why do Ants Like Sugar vs. Artificial Sweeteners?

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

Density Experiment

In this project students experiment with making music using only glasses of water.

Musical Glasses

Can a toy car determine the strength of a magnet? In this cool magnet science fair project, young scientists will learn how to measure the strength of a magnet.

Magnet Science Fair Project: How to Measure the Strength of a Magnet

In this science project, young children observe, record, and create collections of colors in their world and increase their powers of observation.

Color Walks: Seeing Colors in Our World

In this science fair project, young children observe, record, and create collections of shapes in their world and increase their powers of observation.

Shape Walks: Seeing Shapes in Our World

This science fair project idea explores  whether a plastic slinky works as well as a metal slinky when walking it down the stairs.

Slinky: Metal vs. Plastic

Check out this cool science project idea to learn about rocks and explore the cycles of formation, breakdown, and reformation of rocks in the Earth's crust.

A Rocky Quiz

Science fair project that determines whether landscaping fabric impacts the ability of plants to receive water.

Thirsty Plants 

Experiment with buoyancy to learn how a submarine rises and sinks in this classic science experiment.

How to Make a Cartesian Diver

Children will learn all about cause and effect as they experiment with potion-making in this Halloween themed activity.

Halloween Potions

Total alkalinity and pH personal care products are controlled to prevent skin irritation. Learn more about basic and acidic substances in this science project.

Total Alkalinity and pH of Personal Care Products

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