Use familiar household items and decorations to turn estimation into a fun game!

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!

Work on measurement by sliding cards along a table with your second grader in this fun game. Use centimeters or inches, add up your totals, and see who's won!

This hands-on activity gives your child an opportunity to apply various strategies to solve a problem and to check if his answer makes sense.

Plants help keep a house cool! This article includes step-by-step instructions for completing this fun and interesting science experiment.

This very physical game gets math off the page and into the real world-- and it works on number sense and estimation, key skills for kindergarten readiness.

This science fair project investigates how temperature of a room affects the burn rate of a candle.

How do cold packs work? Explore endothermic reactions by comparing the temperature change that results from various chemicals added to water to find out!

This science fair project idea explores whether boiling and freezing water will have an effect on how much it weighs.

In this science fair project, we'll use a liquid crystal thermometer to find out whether exercising makes a difference in people's temperature.

The objective of this science project is to determine the relationship between carbon dioxide gas and the temperature of the atmosphere.

Will your liquid weigh less once you remove the fat from it? Find out in this science fair project idea.

This science fair project idea explores whether dry ice will cool a beverage faster than wet ice.

The objective of this science fair project idea is to determine whether frozen vegetables have more nutrients than canned vegetables.

Check out this fun science fair project idea to explore fun facts about fruit juices and learn why do juices turn bad in the fridge.

Check out this cool science fair project idea to explore the risk of mechanical deterioration of artifacts placed in a storage box due to mold outbreaks.

What is the coldest temperature possible? In this cool experiment, you'll calculate absolute zero by extrapolating data on the temperature and volume of gas.

This project concerns activity happening millions of miles away, on the sun.

The objective of this science experiment is to evaluate the affects of high and low heat capacity on a material's heat retention ability.