This cool science fair project teaches kids about temperature, density and buoyancy using balloons that float with normal air. No helium required!

Chlorine and chloramine are added to our tap water to kill harmful microorganisms. What is the best way to filter these disinfectants in your drinking water?

Celebrate Dia de los Muertos by baking pan de muerto. In this 5th-6th grade activity, your child will explore another culture while learning about baking.

Practice conversions within the metric system in this fun math card game for third graders.

Introduce your fourth or fifth grader to volume by having him build rectangular prisms, and then count each sugar cube to check his volume calculations.

This simple heat transfer experiment is a great introduction to the concepts of heat transfer and conduction.

Get estimating with this spooky activity that asks your young mathematician to rely on their problem-solving skills to figure out how many items they believe are in spooky Halloween jars!

This simple experiment serves as an introduction to the greenhouse effect.

Help your curious kid cut through the clutter and collect the facts with a simple and fun science foldable.

This science fair project idea explores whether factors such as temperature and concentration affect the pH of a solution.

Kids will learn how to measure the viscosity of liquids by making their own homemade viscometer in this great science fair project idea.

Science fair project idea which teaches you how to make butter by separating cream into butter and buttermilk.

Making metric conversions is a difficult concept to master. Get in some extra practice by playing this Tic-Tac-Toe game with your learner.

Have your student draft a blueprint for a haunted house, and trick (or treat) them into learning about geometry in the process.

In this science experiment, observe convection currents forming and learn about how heat energy moves in liquids from hot to cooler areas through convection.

Have your child observe, measure and record the amount of space objects occupy, and you'll have an inside space explorer on your hands in no time!

This experiment works due to a simple principle: plants need light. Build a shoebox maze and watch the plant work though the obstacle course, searching for sun.

Homemade Halloween treats make great party foods for an All Hallow's Eve get together. These four homemade Halloween treats are scary-good.

Here's a fun activity to help build thinking skills in young first grade scientists, and to encourage them to have a blast exploring the mass and volume.

The objective of this science fair project is to examine the effects of temperature on salt and water solutions, as they form crystals over time.

This experiment uses a yeast solution, liquid detergent, and hydrogen peroxide to produce an exciting reaction like no other!

Any time is the perfect time to whip up a delicious batch of fluffy pumpkin cookies.

Grow a garden with an environmentally-friendly twist by using plant scraps that usually get thrown away.

This Mother's Day, mix in some fifth grade science learning to create this fabulous fudge!

Here's a fun math and science activity: help your child explore four different kinds of measurement, using their hand and a few simple household tools.

Make your own marshmallows and mix up some very interesting third grade chemistry lessons while you're at it!

Kids will create their own version of Richard Feynman's rubber band heat engine to learn about thermodynamics with this cool science fair project idea.

Science fair project which simulates the global conveyor belts on a small scale, and observes the effects of wind, density and temperature on water movement.

What keeps a an item cooler, polymer crystals or ice? Find out in this cool science experiment!

Here is a fun middle school science project on factors affecting solubility. Learn how dissolved solids can "crash out" to form crystals when conditions change.