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Reuse old cardboard boxes and popsicle sticks to create a miniature sled that is perfect for pretend play with dolls or action figures.

The objective of this science fair project idea is to find out whether refrigerating cosmetics will extend their shelf-life and longevity.

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.

This science fair project idea quantifies the effect of weather- in this case temperature and humidity- on musical instruments.

Boost your preschooler's math and verbal skills by having her participate in simple, fun activities that teach her how to sort, count, and categorize objects.

This flexible activity for preschoolers features jellybeans, counting, coloring, and the five senses.

Get your child excited about measuring with this fun and easy household measurements activity.

Determine the differences between various bicep exercises, both in terms of how much muscle exertion they create and how they affect your heart rate.

Here's an enjoyable at-home activity that gives your child step-by-step practice identifying the important parts of an article and organizing his ideas.

Hone observational skills and introduce the basics of data interpretation with this data gathering activity all about the different colors people wear.

Examine the connection between temperature and chemiluminescence.

Determine whether the relationship between a personâs armspan and height are genetic.

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

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.

Build this game, and give your kid some hands-on practice ordering numbers. Soon your first grade kid will be Master of the number line!

Try a 100th Day of School Scavenger Hunt with your preschooler, and send her on the search for objects of different colors!

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

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

Money is a difficult concept to grasp. Help your kid get the hang of it with this pocket change triple Venn diagram activity.

This science fair project determines what effect substances have on ice, and which of these products most effectively melts ice.

Practice multiplication facts by playing baseball in this fun, third grade math board game.

Help your kids fall in love with nature by making a simple clay bird bath. Set it up in your yard and watch the animals venture in for a sip of water.

Marshmallows are made of sugar, water, and air pockets. Since the marshmallow is flexible, will air pressure cause it to expand when heated in a microwave?

You've heard the expression "burn rubber" but do you know how heat affects rubber? Examine the impact of temperature on rubber in this fun science experiment.

Investigate the advantages of the use of ceramics in engines such as the tiles used in Space Shuttle. Use iron filings and magnets.

The thermometer outside is dip, dip, dipping! What kind of clothes will keep you warmest this winter? This project determines which materials insulate best.

For a fun activity that takes the dull out of decimals, show you child how to gain a better understanding of decimals...as dollar amounts!

This science fair project idea creates an underwater habitat and explores the basic needs of living things under water.

Gather the neighborhood children together and practice graphing with this backyard tournament!

Why does honey crystallize? This science fair project project answers this question and identifies the variable that makes this sweet solute crystallize faster.