Elementary School Engineering and Science Inquiry Activities : Page 12

Milk is made of water and fat; but how can you separate the two? Find out in this color changing milk experiment.

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

This project determines what category of person is most likely to be ticklish.

Do different types of oil mix or stack? Find out in this science fair project idea!

This science fair project idea demonstrates that plants give off water.

The objective of this science fair project is to examine the effects of temperature on salt and water solutions, as they form crystals over time.

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.

In this physics project, learn about the relationship between light intensity and distance using a laser pointer, flashlight, and graph paper!

Science fair project that examines how to grow bacteria in a controlled setting, using simple materials from around the home.

In this cool physics experiment, use double plane mirrors at various angles to learn about light reflection. Then, see if you can solve a puzzling problem!

Explore how sound waves are reflected and absorbed by producing echoes. Analyze which locations produce echoes.

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

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

What are buttress roots? In this fun science project, make a model of a rainforest tree and learn how they help trees survive in the tropical rainforest!

Have you ever wondered how many numbers most people can memorize? Test your friends to find out!

This science fair project idea investigates how color affects temperature.

This fun science fair project idea helps students learn how acid rains are formed and explore how acid rain damages the environment.

Check out this cool science project idea to learn about rocks and explore the cycles of formation, breakdown, and reformation of rocks in the Earth's crust.

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

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 free science fair project, build a star clock and learn how to tell time on a clear night by observing the big dipper!

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

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

Let your kid experiment with textures among fabric and other materials that are smooth, rough, soft, or slippery—and then they'll make a texture book!

Do you think you could walk around upside down -- with your feet in the air and your head on the ground?

Free science fair project idea that examines the differences between cats and dogs. Analyze objective qualities rather than subjective ones.

In this activity, students will create a stop motion animation by creating a clay figure and taking a series of digital photographs.

Check out this science project idea to compare organic produce to non-organic produce and how preservatives in food extend the shelf life of goods.

Is there a relationship between caffeine and heart rate? Students will determine the effect of caffeine on heart rate in this fun science fair project.

Science fair project that determines whether lettuce that is harvested gradually yields more produce than lettuce that is harvested all at once.