3rd Grade Engineering and Science Inquiry Activities : Page 7

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

This science fair project will help students learn about non-vascular plants, such as mosses.

In this science fair project, students learn how pressure can make the minerals in a rock line up in the same direction and form bands and foliation.

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

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!

In this science fair project, students examine under what conditions individual plants release seeds and how far the seeds are released.

What keeps a an item cooler, polymer crystals or ice? Find out in this cool science experiment!

Have you ever noticed the way a dropped stone makes a fun pattern in a pond or lake? What's the science behind these splashy occurrences?

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?

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

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

This science fair project idea investigates how a bottom keel helps keep a boat from rocking back and forth.

In this simple circular motion experiment, you'll observe tangential velocity and learn about how acceleration and centripetal force affect an object.

This activity challenges students to use computational thinking as they create a sequence of commands that will make a robot move in a pattern related to the sound and rhythm of music.

This science fair project idea investigates if fats add to the flavor of food.

Create a homemade pair of sunglasses with colored lenses to see just how light and color affect our sight! Use this fun project to practice science!

Kids will make predictions about cricket behavior by conducting this fun and easy experiment which simulates different environments for crickets.

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

This science project explores the concept of being opaque or clear. Can you make something clear opaque? Or something opaque clear?

This science fair project idea explores if the length of the string that an object is suspended on has an effect on how fast or slow it swings.

This science project lets students explore the number of spots on a ladybird and how to treat ladybugs with respect.

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

This science experiment has students test whether a snail moves faster on concrete or dirt.

This science fair project examines how seeds hitchhike on animals and clothing.

Young scientists will investigate people's preferences for saltiness, and make some inferences about genetics and diet.

Cleaning can be a chore, but not with this sudsy experiment!

This science fair project idea demonstrates how air resistance contributes to denser objects falling faster than less dense objects.

The purpose of this science fair project is to demonstrate how yeast, a fungus, causes bread to rise.

Determine if gender affects the ability to identify different smells.

Discover flight initiation distance as you play around in the park with this fun bird watching project!