3rd and 4th Grade Science Activities : Page 12

Stories change as you retell them. The objective of this science fair project is to demonstrate how information gets interpreted, distorted and changed.

An hour glass, also known as a sand clock, keeps time. In this activity, your child will make her own sand clock and measure the time it keeps.

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.

Make water and clay play a little more scientific with this hands-on experiment that teaches displacement and shows how an object's shape affects its buoyancy.

Teach your child how to make an all-natural, yellow-brown dye, using just walnut shells and water. This deep dye can be used on textiles, art, and wood.

This science fair project examines how seeds hitchhike on animals and clothing.

This science fair project explores how osmotic pressure forces water through the root up into the plant.

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.

Explore how dielectric heating comes into play when microwaving various liquids in this science project. This test will help you understand how microwaves work!

On the next chilly, winter day, invite your fifth grader to make a hand warmer by experimenting with the loaded combination of a few natural ingredients.

Have your child build his own mini waterfall, and help him develop his planning, problem solving, and architectural skills.

Make a DIY golf putter and design your own golf putting course in this 2nd-3rd grade arts and crafts/game activity.

This science fair project idea investigates how a bottom keel helps keep a boat from rocking back and forth.

Science fair project that examines the behavior of water and gravel in creek beds and the formation of sedimentary rocks.

With this science fair idea, little scientists will gain valuable insights into the physics behind throwing a baseball.

What chromosome combinations determine a fetus gender? Use probability to think about whether a sperm and ovum will create a male or female in this project.

Make a seed bomb and let your junior guerilla gardener spread flowers far and wide.

Combine the science of physics with the fun of playing spy. Your young detective can make his own tiny looking glass. It's simple to make!

Science fair project about work and energy which uses a simple mathematical formula to predict how far a jar will roll down an incline.

Help your child create a magical miniature garden in the most unlikely of places: a recycled plastic bottle!

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

Who needs paint, glitter, or crayons when you have natural art supplies right outside your front door?

This biodiversity project examines the biodiversity in your own backyard.

The purpose of this science fair project is to study the properties of sugar and examine individual preferences for sugar and other sweeteners.

Kids learn how to prevent erosion by growing grass. They'll test soil with grass against raw soil in this revealing science fair project idea for 4th grade.

Here's a great activity that uses corks and toothpicks to create a fleet of floating boats. Which design makes for the most seaworthy vessel?

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

Take a look at forensic science with your child. She'll learn how to take a shoe impression, just like the detectives do!

Test out the pH levels of soil in your backyard versus soil in more wild environments to solve this science case.

Using an empty tennis ball can and a swimming pool, you will determine if it's possible to have a conversation under water.