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Learn about our response to scents that existed in our environment over evolutionary time and consider why scents might affect our mood state.

Construct a model of radioactive decay. Learn more about radioactive decay by modeling the process using coin flips.

The project researches how lubricants affect the mechanical advantage of a pulley.

Science fair project that determines whether spreading a moss soup over an area increases moss growth.

This experiment will explore how mallets of various materials and weight create sonic tones of varying lengths.

This experiment explores the most common colors that appear among a sample of crossbred guppies.

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.

The objective of this science fair project is to examine the basic principles of air pressure using simple materials like a balloon, straw and string.

Check out this game that provides an enjoyable way of demonstrating how recorded results can be expressed in whole numbers, fractions, and decimals.

Using a toy race car kids create a visual model of the Doppler Effect.

These cute holly-shaped hair clips are a breeze to make for holiday celebrations. They make a great party activity, too!

Have a bookworm on your hands? They'll boost their spelling and problem solving skills with this Oulipo activity re-writing lyrics to beloved Christmas songs!

The goal of this fun science experiment is to explore the limitations of sight and learn working of the human eyes.

Recycle paper and old magazines with this art project that creates a great tool for artists: a color wheel!

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.

In this activity, kids learn a little about Japanese culture by making their own windsock in the shape of a koi fish.

Have fun with bubbles and find out why there are bubbles in your tap water in this cool science fair project idea.

Help your child learn one of the most beautiful mathematical expressions in nature as she uses the Fibonacci sequence to create a "spiral of beauty."

Science fair project that tests the effects of temperature change on the reactivity of the catalase enzyme.

The objective of this science project was to build a model of a volcano and observe reaction between different substances, including baking soda and vinegar.

Science fair project idea that compares number and relative sizes of leaf stomata. Collect leaves of plant species, identify, observe stomata with microscope.

Ant behavior is closely related to light intensity. This free science fair project idea examines how fast ants dig when they are exposed to to light and dark.

Science fair project idea examines different techniques for memorization. Analyze results of memory tests to determine which method is most effective.

This fun art activity gets your child to create background and foreground elements, building his art skills and creative development.

Your child can now recreate history by building his very own fortified castle.

Your growing child will reflect on her identity and express herself with this fun and artistic photo project.

This science fair project idea determines which flower lasts the longest.

This science fair project idea discovers whether there are some objects that do not fall at a constant rate.

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!

Homophones are those tricky little words that tend to confound early learners. Help your second grader ace the challenge with this outdoor game.