Challenge your learner to design and build a city of their own in this creative engineering activity.

The next time you've got a restless second grade earth scientist on your hands, use this experiment to demonstrate crystals and make a tasty treat, too!

This science fair project uses paper chromatography to investigate whether black, brown, orange, and purple are pure colors or mixtures of other colors.

This season is a great time to explore the many shapes, sizes, and species of evergreen trees. Download our "field guide" activity and learn more!

Let your fourth grade chef mix up butter and sugar with scientific principles about different states of matter, and get delicious toffee, too.

Can a toy car determine the strength of a magnet? In this cool magnet science fair project, young scientists will learn how to measure the strength of a magnet.

In this activity, children will work on their mathematics and engineering skills as they attempt to recreate the Eiffel Tower out of building blocks!

Try this chemistry experiment with your curious kid and get some "shocking" results!

Do plants get crowded? Have your curious kid investigate how plants respond if they're forced to grow together in a confined space.

Is it solid or liquid? Create oobleck and witness the amazingly weird oscillation between the two!

Develop your child's mathematical and engineering skills with this fun building brick challenge. In this activity, your learner will be challenged to create a boat out of building bricks.

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?

How would you dry your wet clothes if your dryer didn't work? Find out with this fun experiment!

Start your toy engines -- this is going to be a fast and friction-filled race!

Spiders don't go to grocery stores or fast food chains to get their food -- they set up traps and wait for their food to come to them!

Help your second grade scientist explore the timely topic of wind speed using a version of the classic Beaufort Scale.

In this science fair project, apply the principles of leverage and force by building six simple machines designed to set weights in motion.

Science fair project that develops latent fingerprints on a non-porous objects by converting superglue from a solid state to a gaseous state.

An home science experiment for older students that teaches about the science behind heat.

Get down to the rubber with this science project that tests the effectiveness of different types of erasers.

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!

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

The goal of this science fair project is to discover the science behind carbonated soft drinks and apply this knowledge to create a new one.

This science fair project idea develops an understanding through experimentation of which shapes are the most structurally strong.

This science project teaches students to classify different shapes of leaves.

Learning about how plants grow is a building block in the early grades science curriculum. Put a fun twist on this life science concept with these cup monster friends!

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

This science fair project teaches students the differences between fruits and vegetables.

This science fair project idea compares biodiversity between drops of water.

This science fair project idea explores whether a plastic slinky works as well as a metal slinky when walking it down the stairs.