3rd Grade Science Activities : Page 5

This project compares the strength of one, two, and three-ply toilet paper.

Learn to solve a crime scene investigation using an important forensics tool: oblique lighting.

This science experiment tests whether warm or cold water works best in making cut flowers last longer.

Learners hypothesize about and experiment with soil erosion in this hands-on activity.

Encourage a group of third graders to play this fun game of Whistle Hide-and-Seek as a warm-up to get them prepared for finding a "lost" camper.

Teach your child how butter is created by shaking up cream the old-fashioned way.

In this exciting design challenge, your child will use design thinking skills to create a mixture that can inflate a balloon.

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!

Science fair project that examines how winter storms form and the relationship between temperature, moisture and snow.

Grow a garden with an environmentally-friendly twist by using plant scraps that usually get thrown away.

Nature is the greatest teacher, and you can help facilitate the lesson! Here's how to create a supply backpack to get your kid ready for science action!

Did you ever add salt to pasta? Did it help cook the pasta faster? If not, find out in this science fair project idea.

What's the best way to make DIY compost? Kids will learn about aerobic and anaerobic decomposition while learning to appreciate the value of composting.

Make your own marshmallows and mix up some very interesting third grade chemistry lessons while you're at it!

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!

Your third grader will be amazed at the explosive combination of vinegar and baking soda in these chocolate volcano cupcakes with white chocolate "lava."

This science fair project idea investigates how the shape of an object affects drag.

Do different types of oil mix or stack? Find out in this science fair project idea!

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

Gymnosperms are coniferous trees that reproduces using pine cones to spread seeds. Check out this simple pine cone experiment to learn about the process!

Make a backbone model to explore human anatomy and life science.

Bring a little science to your third grader's Christmas as you test out his sense of smell by exposing him to common Christmas scents found in your kitchen.

How does salinity affect the point at which water freezes? Kids will find out by performing this cool melting ice experiment.

This project explores whether nails, toothpicks, straws, or pen nibs are best for applying ink to paper.

Children will learn why and how to compost as they help with the process of filling their compost, turning it, and observing the changes that occur.

Here is a hands-on activity to help third graders understand the four points of a compass...and how we use them to get around.

Ever wondered how a plant drinks water? This science project will teach you how and help you create a beautiful floral display!

Is it magic? No...it's the amazing, gravity-defying capillary action experiment! Kids will love this dramatic and enlightening science fair project.

In this fun activity, your child will create their very own solar oven to bake s'mores!

The goal of this evaporation experiment is to learn about how different external conditions affect drying time.