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Others Like “Piaget's Theory of Conservation: When One Cup of Water is Less Than One Cup of Water”

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Science Fair Project Idea
Plants need nitrogen to build proteins and nucleic acids to grow healthy stems and leaves. Though the Earth's atmosphere is made up of 79% nitrogen, the form of nitrogen found in the atmosphere cannot be used by plants. In this experiment, you will compare plants grown without nitrogen fertilizer to plants grown with nitrogen fertilizer. Read more
PlantBio_p012
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- Less Details
Time Required Long (2-4 weeks)
Prerequisites None
Material Availability Readily available
Cost Very Low (under $20)
Safety Adult supervision recommended during preparation of nitrogen fertilizer solution
Science Fair Project Idea
thumbnail Have you ever bitten in to a cookie and thought, "this is the best cookie in the whole wide world!"? Was it one you made at home? In this science fair project, discover if you can perfect the taste of your favorite cookie right in your own kitchen! Read more
FoodSci_p014
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- Less Details
Time Required Short (2-5 days)
Prerequisites None
Material Availability Readily available
Cost Very Low (under $20)
Safety Adult assistance is needed to make the cookie dough and bake the cookies.
Science Fair Project Idea
thumbnail If you have ever prepared a cup of coffee or tea with sugar, you have probably seen that the grains of sugar quickly dissolve and completely disappear in hot water. But sugar is not the only type of solid that can readily dissolve in a liquid. In fact, there are some types of rocks that can be dissolved by common liquids. It might be hard to imagine large, hard rocks being eaten away by some ordinary fluids, right? But it actually happens all the time! In this geology science project, you will… Read more
Geo_p047
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- Less Details
Time Required Long (2-4 weeks)
Prerequisites None
Material Availability Small limestone rocks are needed to do this science project. See the Materials and Equipment list for details. Note: The listed time required to do this science project includes shipping time.
Cost Average ($50 - $100)
Safety No issues
Science Fair Project Idea
You are looking under your bed for that video game you want to play, when you come across a real treasure—an open bag of potato chips that you forgot about! A crispy and salty potato chip is a tasty treat. But wait! This potato chip is not crisp and does not taste as great as it should. What happened? The chips have gone rancid! In this cooking and food science fair project, you will look into what factors turned your chips rancid. Read more
FoodSci_p052
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- Less Details
Time Required Long (2-4 weeks)
Prerequisites None
Material Availability Readily available
Cost Low ($20 - $50)
Safety No issues
Science Fair Project Idea
thumbnail What is the first thing you do when you wake up on a cold, frosty morning? Snuggle down deeper under the covers? Animals, like puppies and piglets, do not like being cold either, but they do not have hands or blankets to wrap themselves up. So when animals get chilled, they change their behavior and do things like huddle—they curl up close to other animals. In this mammalian biology science fair project, you will see just how much huddling can help reduce heat loss. Read more
MamBio_p027
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- Less Details
Time Required Average (6-10 days)
Prerequisites None
Material Availability Readily available
Cost Low ($20 - $50)
Safety Use caution when handling glass jars or thermometers, as they can break or crack if dropped. Adult supervision is required when using the stove.
Science Fair Project Idea
thumbnail Cake, cookies, pie, ice cream, hot chocolate, lemonade... Yum! What do all these delicious treats have in common? Sugar. In addition to providing sweetness, sugar adds bulk, flavor, and structure to foods. But is it necessary to add sugar to achieve sweetness? Can the same sweetness be achieved using sugar substitutes like artificial or natural sweeteners? In this project, you will test sugar and sugar substitutes and compare the sweetness of each in relation to sugar. In the end, your day will… Read more
FoodSci_p016
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- Less Details
Time Required Short (2-5 days)
Prerequisites None
Material Availability Some specialty items needed,see Materials List for details.
Cost Average ($50 - $100)
Safety No issues
Science Fair Project Idea
thumbnail Have you ever had fun playing with sand and water, observing how little rivers you create carve their way down to the lowest point of the sandbox, backyard or beach? Some meander, others braid, and some carve a path straight down. Hyrdologists (or scientists who study water) do very much the same thing! Only they set up the model in a particular way, so observing their mini-rivers helps them answer questions about how water flow affects the environment. In this geology science project, you… Read more
Geo_p045
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- Less Details
Time Required Very Short (≤ 1 day)
Prerequisites None.
Material Availability Readily available. See the Materials and Equipment list for details.
Cost Low ($20 - $50)
Safety Adult help is required to cut the water or milk jugs.
Science Fair Project Idea
thumbnail The movement of satellites is intriguing, but how do they orbit the way they do? Aerospace engineers run calculations and set up computer models to help them predict how satellites move in space, but in this astronomy science project, you will create a physical model with marbles, clay, and a cookie sheet to help you study how satellites move in space and learn from your observations. Read more
Astro_p041
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- Less Details
Time Required Very Short (≤ 1 day)
Prerequisites None
Material Availability Readily available
Cost Low ($20 - $50)
Safety No issues
Science Fair Project Idea
thumbnail Living in the industrialized world, like the United States, we are fortunate because we don't have to worry about the quality of our drinking water. Your community has the means to clean and provide water to you. But in many parts of the world, people don't have this luxury. Whether it is due to war or poverty, the lack of clean water leads to many health and social problems. In this environmental engineering science project, you will learn about different methods to filter out impurities in… Read more
EnvEng_p030
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- Less Details
Time Required Average (6-10 days)
Prerequisites You must have access to a stovetop.
Material Availability You will need to purchase a water filter kit. See the Materials and Equipment list for details.
Cost Low ($20 - $50)
Safety You must exercise caution when using a stovetop. Adult supervision is recommended.
Science Fair Project Idea
thumbnail What color is grape soda? If you pour it into a clear glass you can easily see it is purple, but that is usually not its natural color. Manufacturers add red and blue dye to the soda. The dyes mix together and you get purple soda. What if you wanted to un-mix the dyes, could you? Yes! In a chemistry laboratory, using a technique called column chromatography, you could separate the two dyes again. But what about at home, can you use low-tech supplies to do the same thing? In this science… Read more
BioChem_p045
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- Less Details
Time Required Average (6-10 days)
Prerequisites None
Material Availability Syringes (without needles) and Space Sand need to be specially ordered. See the Materials and Equipment list for details.
Cost Low ($20 - $50)
Safety Use caution and follow all safety warnings when handling and using the 70% isopropyl alcohol. The alcohol is highly flammable. Do not swallow, and avoid any contact with eyes.
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