2nd - 4th Grade Science Activities : Page 15

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

This activity works well with a group or just with a parent and child, and it can make a great party game since it's both fun and inexpensive.

What is a wedge? Kids find out by experimenting with different wedges in this simple science fair project idea.

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!

Do you think you could walk around upside down -- with your feet in the air and your head on the ground?

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.

Magic, science, or household cleanser? Let your second grader decide with this practical, nontoxic chemistry experiment with acids and bases.

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.

Create your own cloud with an activity that will explain how important concepts such as evaporation, condensation, and precipitation work.

Is your little scientist up for a rocky challenge? Let them make their own geode rocks using eggs and epsom salts!

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 fun marbled paper craft uses things you're likely to have around your house, and it teaches kids some simple chemistry too!

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.

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

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!