Preschool - 4th Grade Engineering and Science Inquiry Activities : Page 17

Can you fool your eyes and your brain with an optical illusion? The purpose of this science fair project is to demonstrate various kinds of optical illusions.

In this project, create and examine garden mulch to find out what critters live in the messy, muddy layers just above the soil.

Learn how to be a bird scientist in this simple project of watching feathered friends in their habitat.

Watch pre-packaged seeds and seeds taken from inside fruits and vegetables grow. Which ones will grow faster? Read more in this science fair project idea.

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?

With this science fair idea, little scientists will gain valuable insights into the physics behind throwing a baseball.

Kids will learn how to show the direction of magnetic field lines and create a permanent model using iron filings in this great science fair project idea.

How does dishwashing liquid work? Kids discover the chemical mechanism behind cleansing power in this easy science fair project idea.

In this experiment, kids will see if pruning tomato plants makes them more fruitful and learn about the factors that contribute to a plant's fruit production.

In this awesome science fair project idea, kids will be attempting to pick up different objects using snail slime.

This science fair project uses paper chromatography to investigate whether black, brown, orange, and purple are pure colors or mixtures of other colors.

This science fair project idea examines whether boys and girls differ in reflexes.

Find out which kind of bubble wrap fares best when put in impact.

Kids often ask, "how tall am I?" This science fair project seeks to determine how well kids can guess their own heights.

This science fair project idea investigates how optical distances change the apparent size of an object as seen through a magnifying lens.

This science fair project idea explores how enzyme inhibitors, active sites, non-competitive enzyme inhibitors, and substrates work.

Did you know a mouse eats almost fifty times as much as a cow? Find out how and test out the strange science with your friends!

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

This activity challenges students to use computational thinking as they create a sequence of commands that will make a robot navigate around several obstacles.

Ever wonder why refrigerator lights turn off when you close the door? Does the darkness prevent food from spoiling? This experiment, determines just that.

Invite your kindergarten scientist to conduct this color mixing experiment to discover which primary hues make a rainbow of secondary colors.

In this science fair project, we'll use a liquid crystal thermometer to find out whether exercising makes a difference in people's temperature.

Play with balance and simple engineering as you hurry to create a sturdy rock tower.

Checkerboard play challenges students to use spatial reasoning and computational thinking.

Construct and experiment with a periscope using reflected light rays to gather an image.

Prove that the Earth is not flat. The objective of this science fair project is to measure the angle of the sun and calculate the circumference of the Earth.

Learn whether writing things down really makes things easier to remember.

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

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

Could there be toxic chemicals lurking in the cupboards and closets of your home?