What happens when light hits a hard surface? Find out by conducting a simple light reflection experiment with your preschooler.

Which battery lasts the longest? In this science fair project, kids will test popular brand name batteries like Duracell and Energizer against generic brands.

Can't make it to the beach? Bring the science of ocean waves home with this fun earth science-related craft.

Discover how and which salt melts ice the quickest.

Enjoy those warm spring and summer nights with your child while teaching some basic astronomy at the same time.

How do series and parallel circuits work, and which produces the brightest light in a light bulb? Construct both in this project and find out!

This science fair project idea demonstrates the process of land erosion.

This project examines if computer screen and text color affect retention and if people subconsciously prefer combinations of colors that help their retention.

Your child will do a fun science experiment using soap and pepper flakes to help understand the concepts of water molecules and the surface tension of water.

Make homemade lemonade in a baggie with your preschooler with this fun and easy recipe.

What causes sound? Here's a simple science experiment that adds a visual element to the science of sound to help kids better understand this tricky concept.

This taste buds science experiment demonstrates how strongly our sense of smell controls what we taste.

Want to make Halloween truly eerie? Science to the rescue! These ghouly hands come alive with a little help from simple chemistry.

Use reusable, recyclable materials--along with a dose of imagination--to build a castle with first grade geometrical forms.

Encourage your kindergartener to investigate and chronicle the weather she observes during the coldest months of the year.

In this cool science fair project idea, kids conduct the ruler drop test on volunteers to determine whether reaction time can be improved with practice.

Cherries usually burst with flavor, but in this science experiment they burst with osmotic pressure. This science activity will blow your curious kid's mind!

Students will investigate the thermal conductivity of metals by learning how to measure thermal conductivity with this fun and easy science fair project idea.

There is debate about whether chalkboards or whiteboards are better. This experiment explores which leads to better retention of visually-displayed information.

This science fair project idea discovers which brand of bubblegum produces the largest bubbles.

Understanding absorption means understanding why certain fibers and materials can absorb water! Kids will see absorption in action in this simple project.

This science fair project idea determines if the color of light affects the growth of plants.

Learn about lateral earthquake motion and its effect on high rise buildings in this simple 4th grade earth science experiment.

In this design challenge, your child will make a bottle rocket using typical household items.

Determine which material produces the strongest static charge.

Make your own marshmallows and mix up some very interesting third grade chemistry lessons while you're at it!

Children are imaginative story-builders. Create a shoebox habitat with your child to put those budding creative instincts to good use.

This simple "how to make a water wheel" activity makes physics come alive for your child by demonstrating how different kinds of energy work.

In this free science fair project, learn how to separate salt from water using heat. A great science project for elementary school kids.

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