Preschool - 4th Grade Science Activities : Page 11

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.

Examine which metal conducts more heat by boiling water in 3 pans made of aluminum, copper, and stainless steel.

This science fair project teaches students about wilting and browning of salad greens.

This crafty activity provides a hands-on way for your child to illustrate how the trees look during each season of the year.

Dinosaurs were huge creatures that left behind huge footprints that lasted for millions of years. In this science fair project, kids learn how dinosaur tracks were left behind!

What are the effects of fertilizer on plant growth? What's the best fertilizer type (solid, liquid or powder)? Kids find out in this science fair project idea.

Your kid will be captivated as she watches liquids change color before her very eyes during this fun science project that introduces some chemistry basics.

Teach your little scientist about the amazing powers of gravity by comparing the falling speeds of two yummy fruits

Learn about sound physics and do a survey experiment to explore the difference between sound and noise in this science project.

Do you have your isopods straight? Learn about sow bug and pill bug behavior by building a terrarium to study them in!

Check out this cool science fair project idea to explore which other common animals besides scorpions glow under a UV Black light.

Help your child make a beautiful homemade sandcastle that will last!

Kids will learn how to make a steam powered rocket boat, also called a putt putt boat or a pop pop boat, in this great science fair project for 4th graders.

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

Turn an abstract lesson into a practical craft with the fun and colorful creation of dough earth layers!

How does a kazoo, the strings of a guitar, or the speaker of a radio make sound? The purpose of this science fair project is to show how vibration makes sound.

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

In this fun science experiment, kids will determine the best method for ripening avocados and discover the cool chemical reaction that makes this possible.

This science fair project idea identifies trees using a dichotomous key.

What is topography? Kids find out by learning to make and read a topographic map in this awesome science fair project idea.

Let your second grader pay homage to an ancient Olympic tradition with this modern day Olympic wreath!

This science fair project demonstrates the magic of arches by challenging students to stack telephone books on top of eggs without breaking them.

We all know that the Moon has different phases, but it can be hard to figure out why. Try this activity to see how the Moon's phases really work.

In this awesome science fair project idea, kids will be attempting to pick up different objects using snail slime.

Is our water polluted? Help your young scientist understand the importance of taking care of the environment with this simple experiment.

Build a bird feeder science craft that brings birds to your yard, and a smile to the whole family's face.

Celebrate April showers with a springtime arts and crafts activity: make sparkly, shiny raindrops with your kid.

This easy Halloween-themed science experiment for first-graders is perfect for chilly October afternoons or great as a Halloween party activity.

This science fair project idea explores plant growth from a bulb, root, and a stem and investigates asexual plant reproduction.

This fun and crafty activity is easy enough for your child to lend a helping hand and makes a great indoor or outdoor game.