This project determines whether Styrofoam, paper, or plastic cups are best for preventing ice from melting.

Science fair project that examines how yeast grows, and which conditions allow for optimal growth. What types of nutrients does yeast prefer?

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?

The next time you've got a restless second grade earth scientist on your hands, use this experiment to demonstrate crystals and make a tasty treat, too!

Liven up a lesson about graphing by helping your third grader compile a bar graph from his classmates' birthday data.

Help cement the concept of place value with this simple activity that involves creating a set of dials made from Styrofoam cups.

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

This science fair project idea teaches how the gases and pollution in the air affect the earth's atmosphere temperature.

What is the hydrologic cycle and how does it work? Check out this fun and easy science project where you will model and learn about Earth's water cycle!

In this fun science fair project, make two different scale models of our solar system using Astronomical Units and planets' relative size!

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

This pyramid card game is a fun way to help your child learn addition and subtraction. Best of all, itâs quick to set up and easy to play.

All you need are pencils, paper and some scissors to get started on this easy and fun game to review astronomy information, or other types of study concepts.

Science fair project that examines how temperature affects density and how density in turn affects the behavior of helium gas.

This educated-guessing game is great for preschoolers. This activity helps your child work on her reasoning skills.

This science fair project idea identifies clouds as a means of predicting the weather.

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.

Draw your own beautiful mandala with this easy technique that ensures symmetrical results every time!

For a fun family activity to introduce your child to genetics, have your child go on a search for dominant and recessive family genes!

Compare animal and plant fats and observe, and record, and draw conclusions about their similarities and differences.

Help your child apply his math skills the next time you cook a family meal similar to one you'd buy at a restaurant.

This science fair project looks one of the most important factors affecting seed germination: water. A fun and easy plant biology experiment for 3rd graders.

In this activity, your child will get a review of addition, subtraction, multiplication and division using classic domino pieces.

Is horse manure a possible energy source in a crisis? Use calorimetry to find out how much energy horse manure can produce in this science fair project.

In this cool project, create a lighted, scale model of the different layers of the Sun, including the core, radiation and convection zones, and photosphere.

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.

Figuring out fractions can be a challenge! But with this game your child will become more comfortable converting fractions after only a little practice.

This decimal game is a great way to help your child get familiar with how decimal values work.

How does frost form? How fast does it form? Do this simple science project using a plastic glass, rock salt and some water to learn about deposition.

To help your child learn how to use a thermometer, try this temperature collecting activity at home.