2nd and 3rd Grade Engineering and Science Inquiry Resources : Page 4

The goal of this golf science fair science fair project is to determine whether the temperature of a golf ball affects its elasticity and its rebound.

Crayons aren't just good for creating colorful masterpieces -- they're also great for science!

This science fair project idea determines what household items are good conductors of electricity.

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

In this hands-on design challenge your child will make their very own Rube Goldberg Machine.

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

Challenge your learner to design and build a city of their own in this creative engineering activity.

Learn how to tell time by the sun with this cool science fair project idea that tracks how the accuracy of a sundial changes over time.

How does a flashlight work? Kids will make a complete circuit and explore how voltage contributes to brightness with this science fair project idea.

In this free science fair project idea, we learn about surface tension and how it can support mass—in this case, a floating paper clip.

In this design challenge, your child will make a bottle rocket using typical household items.

Do hand soaps and sanitizers prevent the growth of bread mold? If so, why? Kids will find out with this fun and informative science fair project idea.

In this enlightening transpiration experiment, kids will explore how the loss of water from plants through transpiration contributes to the water cycle.

How does a kazoo, the strings of a guitar, or the speaker of a radio make sound? The purpose of this science fair project is to show how vibration makes sound.

In this experiment you observe and determine how well your cat uses his whiskers to navigate through a maze.

While your cells are much too small to see without a microscope, you can create the look of a cell in your very own home with just an egg and vinegar!

Is it possible to trick the forces of nature that make your bubbles round to create a square bubble?

Be a chemist for a day and study the simple reaction between sugar and heat. Try heating sugar and see what happens!

This science fair project idea investigates if webbed feet help a duck (and others) swim.

This science fair project idea investigates the hardness property of minerals.

In this science project, learn about water transport in plants and make a beautiful dyed floral arrangement with cohesion, adhesion, and xylem tubes!

In this science fair project, kids observe the expansion of liquids when frozen and determine if some liquids expand more than others in the freezing process.

This science fair project idea determines which method of hand cleansing is the most effective.

Understanding absorption means understanding why certain fibers and materials can absorb water! Kids will see absorption in action in this simple project.

When you rub a balloon on your head, your hair stands up; but is that true for everyone? Does hair color affect static electricity?