Third Grade Science Projects (Page 27)

Air Pollution

Science Fair Project Idea

Scientific Method

Smog days are often posted in your local newspaper. Check how many smog days your city has had in the last year. How does it compare to to other years? You can also take pictures of your city landscape on high and low smog days. How do the pictures compare? How does smog in the atmosphere affect visibility? What is smog made of? You can use tongue depressors smeared with Vaseline to check for smog particles in different areas; just stick in the ground and look at them a few days later. … Read more

Get the Scoop on Stroop

Science Fair Project Idea

Scientific Method

Do you like to read? Did you know that most people read without even thinking about it? Find out in this experiment how a simple reading/color test called the Stroop Effect can show you how your brain works. Read more

Ladybug Spots and Breeding

Science Fair Project Idea

Scientific Method

Ladybugs are common insects in North American gardens that prey upon aphids, making them all the rage in biological pest control. Ladybugs can be bred in captivity making them a good insect to study. Just chop off an aphid infested plant stem for food, make a water soaked cotton ball for water, and add to a small plastic container with a lid to make a breeding box. You can use ladybugs collected from the wild, or buy ladybugs from your local nursery. The most common species is the 12-spotted… Read more

Memory Mnemonics

Science Fair Project Idea

Scientific Method

Have you ever had to remember a long list of planets or the state capitals? These kinds of lists are full of interesting facts, but they can be hard to remember, especially for tests. What could you do to remember the list better? In this human behavior science fair project, you will learn about a memory technique called mnemonics (pronounced nuh-MAH-nicks) and investigate whether using mnemonics can help you and your friends remember lists of words. Read more

Can Baking Soda Substitute for Baking Powder in a Recipe?

Science Fair Project Idea

Scientific Method

There's nothing quite like the smell of fresh-baked muffins for breakfast on a Saturday morning! If you're into baking, you might want to try this project, which will give you insight into some of the chemistry that's going on in your muffin batter. You'll get some practical knowledge about substituting ingredients. Who knows, it may even get you started on the path to some new culinary inventions! Read more

How to Design a Great Cat Toy

Science Fair Project Idea

Scientific Method

Do you love animals and want to help keep them healthy? Well, here's your chance to design and tailor a toy that will bring out your pet's most playful nature. In this science fair project, you'll evaluate the skills and activities of your pet and determine what kinds of toys most excite your pet and make him or her lively and curious. So call your furry or feathered friend, and let the frolicking begin! Read more

Now You See It, Now You Don't! Test Your Peripheral Vision

Science Fair Project Idea

Scientific Method

Peripheral vision is important in our everyday lives because it allows us to gather a visual sense of our surroundings—without it, we would see the world through "tunnel vision." The survival of our ancient ancestors depended on their ability to use peripheral vision to find prey and to avoid predators. Almost everything we do—from riding a bike, to dribbling a basketball, to reading a book—depends on peripheral vision. In this human biology science fair project, you will test… Read more

No Pain, Lots of Game

Science Fair Project Idea

Scientific Method

You might have heard the expression, "Take two aspirin, and call me in the morning." What if instead a doctor said, "Play two video games and call me in the morning"? Would you be shocked? Or think it was time for a new doctor? In this science fair project, you'll investigate whether video games, and other forms of mental distraction, have the power to relieve pain. Read more

Experiment with Making Gels

Science Fair Project Idea

Scientific Method

Chances are, you have several materials around your house made of gelatinized materials. Gels are used in all kinds of products and materials: pudding, diapers, insoles, packaging, ice cream, toothpaste, and many more. In this project, find out how gels are made and how they can be adjusted from firm to soft by changing the ingredients. Read more

Asteroid! Identify Space Hazards with Computer Vision

Science Fair Project Idea

Engineering Design Process

Space is a dangerous place for astronauts and spacecraft. Earth's orbit is full of potential hazards like meteoroids, space debris, and other satellites that you do not want to crash into! How do scientists detect these objects in space? If you do detect an object, how can you tell what it is? In this project you will make your own computer program that can recognize and react to three different models of objects that can be found in space. No previous programming experience is required! Read more

Third Grade Science Projects (386 results)

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