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2nd and 3rd Grade Science Activities : Page 8

In this science and engineering activity, children will explore types of tunnels and their purposes and then design and build a tunnel of their own.

Build a Tunnel

This experiment has students record rat behavior to learn about the benefits of rats and research rat myths throughout history.

Rats!

Before you get ready for a delicious scramble or omelet, add a bit of science to your morning routine!

Floating Eggs: A Pre-Breakfast Experiment

Using a toy race car kids create a visual model of the Doppler Effect.

A Visual Model of the Doppler Effect

Science fair project which determines whether the size or the thickness of a piece of paper has an effect on how many times it can be folded in half.

Folding Paper

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

Kids construct a single fixed pulley system to learn how pulleys can make work easier in this cool physics and engineering science fair project idea.

The Single Fixed Pulley System

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

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.

Create a Fossil!

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

Make Your Own Marshmallows

The next time you've got a restless second grade earth scientist on your hands, use this experiment to demonstrate crystals and make a tasty treat, too!

Rock Candy Science

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

Create a mini plant habitat with your kid to help teach him what it takes to make an ecosystem work.

Build a Terrarium

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?

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

Experiment with Sudsy Lemon Science

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