Science fair project which measures the shadow cast by a meter stick at various times in order to predict the circumference of the earth.

Observe trends in the properties of writing materials over past 5000 years and extrapolate to future time. Prepare a table that compares writing material.

Celebrate winter with some unique snowman decor. In this activity your kid will create a self-standing sculpture that'll look great on a table or in a window.

Did you know a mouse eats almost fifty times as much as a cow? Find out how and test out the strange science with your friends!

Guessing is more than pure fun, it's also a key part of kindergarten math. Here's a fun way to bring estimation to the breakfast table.

Mason jar lights add a bit of holiday sparkle to a bland patio or dinner table. Make some mason jar lights to add to your collection of Christmas decorations.

Create your own jigsaw puzzle using a blown-up family photo, and reconstruct the image as many times as you like. Here's how kids can make this gift.

Help your kids map the "global footprint" of your family's grocery cart by investigating how far your food travels before landing on your dinner table.

Does your kid love crafts AND food? Teach him to paint with natural dyes from food! He'll be amazed that food can be made into art, just like in ancient times.

Determination can go along way, especially in difficult times. In this home activity, your child will hear the true story of Ivy, the very determined dog, who plays, loves, and runs, just like the other dogs, even though she does not have the ability to

Practice multiplication facts and geography at the same time in this fun third grade math card game.

Play this fun basketball game to help your third grader master their multiplication tables.

This science fair project idea determines the probability of a coin landing heads or tails.

Science fair project that explore how compound motion works by examining how gravity is affected by horizontal force.

Science fair project which measures whether tsunamis are more destructive when they are caused by an earthquake or by a meteor.

Introduce your child to science with something they see everyday--their shadow!

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

Score a bull's eye with this cool science fair project on horizontal projectile motion. Guide a marble to its target and predict its trajectory using math!

Science fair project that guides you through how to test the humidity in the environment using a homemade psychrometer.

This science project examines the thermal properties of several major greenhouse gases.

In this experiment, you will find out how human error can cause faults in any science task. This includes experiments conducted by famous scientists also.

Is it amplitude? Weight? Length of string? Kids will discover what factors changing the period of a pendulum depends on in this fun and easy physics experiment.

In this experiment you simulate radioactive decay in order to gain an understanding of the basics of half-life.

Play with balance and simple engineering as you hurry to create a sturdy rock tower.

Learn how to demagnetize a magnet and how physics can explain this phenomenon with this enlightening science fair project.

Determine whether cats have dominant paws. Observe which paw cat uses to reach for treats, feather, and string. Calculate percentage for two paws.

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

What is elasticity? Students will investigate how this concept applies to bouncing ball physics by testing the bounces of balls made out of different materials.

Follow this Colonial recipe for candied rose petals, and share the sweets with friends, family or classmates.

Using just an egg carton and some beans or pennies, you can play this game with your first grader and see real gains in core math skills.