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3rd Grade Science Activities : Page 6

The purpose of this science fair project is to explore whether UV light passes through some colors and not others by looking at blue, red, purple, and clear.

Does Ultraviolet (UV) Light Pass through Some Colors More than Others?

This science fair project idea investigates which objects float and sink in honey, water, and oil.

Sinking Objects

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

Make a Backbone Model

In this activity, students will think about the form and function of household objects as they compare and contrast kitchen serving spoons of various sizes and designs.

Test Kitchen: Spoons

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

Sound Physics: The Difference Between Sound and Noise

Incorporate some math and science thinking into your annual fall fun with this pumpkin investigation activity! Your child will have a blast investigating various ways of measuring pumpkins, making estimates, taking measurements, and recording their findin

Pumpkin Investigation

Who knew that you could make beads out of rose petals? Not only can it be done, but the beads smell wonderful!

Make Rose Petal Beads

Inspire your child to put on her engineer hat for the day, as she builds her very own, double-decker bridge.

Build a Popsicle Stick Bridge

Learn about the role of Earth's rotation on the Coriolis Effect and hurricanes in this science project. Model the Coriolis Effect on a hurricane's direction.

Coriolis Effect and Hurricanes

This science fair project idea examines whether plants are still able to grow normally if they are turned upside-down.

Upside-Down Plants

This science experiment examines the role of fat in food, especially in making bread rise and whipping cream.

The Role of Fat in Food

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

Make Your Own Marshmallows

This science fair project idea investigates the ability of different whitening toothpastes to whiten teeth.

Smile!

Science fair project that determines whether cooling eggs helps them be peeled more easily. Compare the time it took to peel each egg.

Get Cracking

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

Geology 101

In this activity, you'll not only make your own bouncy balls at home, but your child will also learn how polymers are made.

How to Make a Bouncy Ball

Here is a fun middle school science project on factors affecting solubility. Learn how dissolved solids can "crash out" to form crystals when conditions change.

Factors Affecting Solubility

Check out this cool science fair project idea that models the behavior of the cold desert plants: xerophytes and halophytes.

Cold Desert Plants

The goal of this science fair experiment is to demonstrate the effects of air pressure on objects and analyze applications of air pressure principles.

All About Air Pressure

How does frost form?  How fast does it form? Do this simple science project using a plastic glass, rock salt and some water to learn about deposition.

How Does Frost Form?

This science fair project teaches students the differences between fruits and vegetables.

Is it a Fruit or a Veggie?

This science fair project idea compares biodiversity between drops of water.

Biodiversity in a Drop of Water

This study evaluates if electronic devices commonly found in most households emit radiation, and if they do, how much?

How Much Radiation is in Your House?

This science fair project idea explores whether white light can be separated into different colors.

Can White Light Be Separated?

Want to make Halloween truly eerie? Science to the rescue! These ghouly hands come alive with a little help from simple chemistry.

Halloween Decorations: Make Ghouly Hands!

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

Indoor Gardening with Kitchen Waste

What animals are most popular? This project affords practice in data-collection, record-keeping and data-analysis through the investigation of this question.

What Animals are Most Popular? A Data Analysis Project

This project investigates the affect of storage temperature on microwave popcorn.

Where Should You Store Your Popcorn?

In this science fair projects, students will grow out the bacteria that collect on air conditioner filters.

What Lives in the Air Conditioner?

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

Gymnosperms: Pine Cone Experiment

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