How much does 100 weigh? Play this fun guessing game with your child to commemorate the 100th day of school.

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

Why doesn't the ocean freeze? Students answer this question by simulating the chemical composition and temperature of arctic waters in their own home.

Learn about the microclimate of your backyard by tracking rainfall, temperature, and observed weather with hand drawn charts and graphs.

Practice measurement using centimeters in this fun math race designed for your second grade student!

Does your child love learning about dinosaurs? Does he like digging around in search of hidden treasures? In this fun activity he'll do both!

Do you think heat can affect a plant's growth rate?

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

The project investigates the affect music has on plant growth while experimenting with rock, classical and no music.

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

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.

If you love the idea of handing out holiday tins of homemade cookies but you're not a baker, chocolate-covered apples are the perfect solution.

The goal of this golf science fair science fair project is to determine whether the temperature of a golf ball affects its elasticity and its rebound.

Time is an abstract concept that's difficult to grasp. But waiting for the turkey to come out of the oven on Thanksgiving is a concretely yummy experience.

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.

This measurement activity uses feet to compare objects, but not the ones found on rulers and measuring sticks...the feet on your child's own body!

Countries all around the world have been using the abacus for thousands of years to make math easier. Have your kid make his own abacus to practice arithmetic.

How powerful is the reaction between baking soda and vinegar? Find out here!

This project tests the hypothesis that dark colors absorb more heat than light colors.

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

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

Kids will build a turtle habitat in order to observe the climate preferences of this cold-blooded reptile.

Help your first grade scientist learn about metamorphosis by observing the life cycle of some interesting creepy crawlies.

Here's a thought-provoking activity to make new vocabulary words "stick" in the mind of your young learner.

Here's a place mat your second grader can create, based on the classic frontier tradition of patchwork quilting.

In this insulation experiment, you'll learn which clothes keep you warm in the cold, and which make you shiver.

Hiding protein-rich quinoa and a variety of fresh vegetables, these meatballs are the perfect answer to kid food woes.

In this activity, have your second grader practice measuring by finding the height, weight, and length of their most treasured toy!

How does salinity affect the point at which water freezes? Kids will find out by performing this cool melting ice experiment.

This science fair project idea researches how your choice of clothing affect how hot or cool you feel during the day.