In this science fair project, kids observe the expansion of liquids when frozen and determine if some liquids expand more than others in the freezing process.

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.

In this insulation experiment, you'll learn which clothes keep you warm in the cold, and which make you shiver.

This project leads to an understanding that a whole may be built of smaller parts that fit and work together and provides an introduction to basic tools.

Word color association is just a fancy way to talk about the way we connect colors with words.

Find out whether soil amendments can improve soil conditions and help you grow a bigger beanstalk in this ecology experiment!

This fun experiment provides a concrete and visually striking illustration of photosynthesis.

In this project children discover, identify, and sort seeds from a variety of fruits and vegetables

In this activity, students will be challenged to describe and count the ways a toy moves from one position on a grid to another.

In this project children practice the scientific method while playing with puffy paint.

Why does purple cheese look nasty? Because color plays a big part in how we perceive the taste of different foods. Are birds just like us in this respect?

Wiggly worms are known for staying buried in the soil, but how does that affect plants? Are earthworms and plant growth related?

In this activity, your student will be invited to build a chair out of building blocks that is designed to meet the specific size and shape of a small doll or toy figure.

With Halloween right around the corner, find a way to use your brain and reward your tummy with a new type of science -- candy science!

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.

In this experiment, your child will create two compost bins and see if he can determine what attracts fruit flies.

Can you dig it? This science experiment isn't for kids who like to keep their hands clean.

Will storing cucumbers and tomatoes in the fridge destroy their unique flavors? Find out in this science fair project idea!

Kids often ask, "how tall am I?" This science fair project seeks to determine how well kids can guess their own heights.

This science fair project idea investigates if fats add to the flavor of food.

Cinnamon is tasty, but does it have super powers as well? Find out if cinnamon can repel mosquitoes in this outdoorsy experiment.

Step into the fantastic world of colors with a project that explores what shade you -- and your friends -- like best.

This science experiment has students test whether a snail moves faster on concrete or dirt.

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.

This science fair project will help students learn about non-vascular plants, such as mosses.

This activity challenges students to use computational thinking as they create a sequence of commands that will make a robot navigate around several obstacles.

The objective of this science project is to determine the length of time for different seeds to germinate.

Check out this fun science fair project idea for 1st grade: a solar eclipse model that demonstrates total, partial, and annular solar eclipses.