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This science fair project idea explores how length affects the weight a bridge can hold.

Science fair project that demonstrates the effect of detergent pollution on fresh water birds' ability to stay afloat.

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

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.

When you cut a flower to put into a vase, it'll eventually wilt, even with water and sunshine. But is there another scientific secret to keeping flowers fresh?

Introduce your child to the amazing, almost magical phenomenon of static electricity!

Introduce your second grader to a fun Mexican custom by showing her how to make papel picado, a beautiful creation of cut-out tissue paper.

In this science fair project, students discover how sedimentary layers form as sediments like mud, silt and sand settle over time.

Do plants breathe? Not exactly. They do respire though! This activity will help your child with see that plants are producing the oxygen we need to survive.

This science fair project idea investigates how optical distances change the apparent size of an object as seen through a magnifying lens.

When you rub a balloon on your head, your hair stands up; but is that true for everyone? Does hair color affect static electricity?

Your child can re-use and re-purpose old seeds and paper into something new: decorated paper that can be planted!

In this activity, young learners will make a balance using a plastic hanger and weigh a variety of small objects using candy corn.

In this Halloween-themed activity, young learners will find out what happens when they mix two household items together to create a surprising chemical reaction.

Before you get ready for a delicious scramble or omelet, add a bit of science to your morning routine!

This activity provides a solution to all those leaves on your doorstep, while also giving your child a fun science lesson.

Magic, science, or household cleanser? Let your second grader decide with this practical, nontoxic chemistry experiment with acids and bases.

This simple and introductory art project can help propel an interest in art or even bolster your kid's confidence in planning and mapping.

In this free science fair project idea, we learn about surface tension and how it can support mass—in this case, a floating paper clip.

Kids will learn how to make a thermometer to to explore liquid density in this great science fair project. Which liquids are affected by temperature the most?

Can you imagine a sky filled with bright, colorful bubbles? Make this whimsical scene come alive with bubble science!

In this cool engineering science fair project, kids learn how to build Hero's engine: an enlightening example of Newton's third law.

Here's an Easter themed math game to reinforce your child's logical reasoning and place value skills.

This science fair project idea determines if crystals will absorb food dye and if colors will mix by the process of diffusion.

Science fair project which determines whether the size or the thickness of a piece of paper has an effect on how many times it can be folded in half.

Use pepper and soap to discover some fun facts about the properties of water.

Can a horse lead itself to the carrot? Train your horse with carrots and boxes and test horse memory in this fun zoology science fair project.

Learn about this simple machine and make a pulley of your own to use for fun science trials.

Do you think you could walk around upside down -- with your feet in the air and your head on the ground?

Be a chemist for a day and study the simple reaction between sugar and heat. Try heating sugar and see what happens!