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In this activity, your child will be asked to create a boat that can successfully float while holding 25 pennies.

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

Learn about the fruit fly life cycle in this experiment. Capture fruit flies to examine various stages of insect metamorphosis.

Learn how to make an anemometer with step-by-step instructions in this cool science fair project idea for 4th grade.

In this project, you'll build a model of the earth, complete with all seven continents and four major oceans.

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

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

In this cool engineering science fair project, kids learn how to build Hero's engine: an enlightening example of Newton's third law.

In this science fair project, kids start a chemical reaction that will make a balloon inflate itself!

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

What's the science behind those out-of-sight roots? Find out if you can trick roots into growing in different directions.

Certain fruits can change gelatinâs ability to set. In this experiment, kids will discover what happens when gelatin meets pineapple enzyme.

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

Science fair project in which you will learn more about the natural world by preserving and identifying different animal tracks.

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

In this science fair project, students will create a model of a shoreline, observe erosion and examine how jetties prevent erosion.

The objective of this science fair project is to observe the differences in heat absorption for darker colors vs. lighter colors.

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

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

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

Do you have your isopods straight? Learn about sow bug and pill bug behavior by building a terrarium to study them in!

In this science fair project you will make a model of a cell membrane using very simple material.

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

In this fun design challenge, your child will get creative with making structures out of toothpicks and gumdrop candies.

In this experiment, you'll make a seafloor spreading model to learn more about how plate tectonics work and create mid-ocean ridges.

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

What is a compound microscope? Kids find out by making one of their own in this cool science fair project.

In this science fair project, students discover how sedimentary layers form as sediments like mud, silt and sand settle over time.

This science project challenges students to study deer behavior in their natural habitat- the feeding patterns, social behaviors, male to female ratio, etc.