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Fourth Grade Projects, Lessons, Activities (609 results)

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Science Fair Project Idea
Scientific Method
Would you like to add an unusual twist to a yummy food like ice cream? In this kitchen science project, you will make mind-bending hot ice cream. You will experiment with, and of course munch on this gastronomic treat. It is easy, it is delicious, and it is fun! Go ahead and try it out! Read more
STEM Activity
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55 reviews
Have you ever ridden on a hovercraft? It is like gliding on a cushion of air! In fact, this is exactly what is going on. A hovercraft is a vehicle that glides over a smooth surface by hovering upon an air cushion. Since a hovercraft can travel on top of flat land or water, it is an amphibious vehicle. In this activity, you will get to build your own mini hovercraft using a CD or DVD, a pop-top lid from a plastic bottle, some glue, and a balloon. How will different amounts of air in the… Read more
STEM Activity
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123 reviews
Have you ever wondered why biological siblings look so much alike? Why do they often share physical traits, such as hair color or eye color? It all has to do with their genes. Genes are passed on from parents to their offspring. This means that you share some of the same genes with your biological parents and siblings! In this activity, you will use an alien model to demonstrate how genes or physical traits are passed on from parents to their offspring. How similar will your alien siblings look? Read more
STEM Activity
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29 reviews
If you have ever seen someone use a siphon in a movie, they probably sucked on the tube to get it started. That can be dangerous with liquids like gasoline! Can you make a siphon that will start on its own? Try this activity to find out! Read more
STEM Activity
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40 reviews
Around the globe, many holidays, like Lunar New Year, Diwali, and St. Martin's Day, are celebrated with paper lanterns. Making a paper lantern can be a fun and creative project that combines art and engineering. What will your paper lantern look like? Read more
Science Fair Project Idea
Scientific Method
If you love cooking, decorating cakes, or making edible table decorations, this is a project for you! You will compare three different recipes for rice paper and discover the recipe that works best for your application! Read more
STEM Activity
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105 reviews
Have you ever seen a weather forecast on TV? If so, you might have noticed the letters "H" and "L" moving around on the weather map. They are often referred to as zones of "high pressure" (H) and "low pressure" (L). The pressure they are talking about is the atmospheric pressure. Changes in air pressure can forecast short-term changes in the weather. But how do you know if the air pressure changes, or if it is high or low? Scientists have developed an instrument called a barometer that can… Read more
Science Fair Project Idea
Scientific Method
Amaze your friends and family by moving water with just a few turns of your wrist! Nope, it's not a magic trick. It's simply an Archimedes screw. In this science project, you will build a very simple pump, called an Archimedes screw, to transfer water from a low-lying location to a higher location. Read more
STEM Activity
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77 reviews
Ever wondered how DNA, the genetic blueprint of a life-form, can encode and pass on the information on how to grow and maintain that life-form? Just like a cookbook contains a complete recipe for a dish, DNA stores the recipe for the life of an organism. Although each human has a unique DNA sequence, the DNA in all of us is about 99.9% identical! In this activity, you will make a model for a short section of DNA—enough to get a sense of what DNA is like and how it encodes life. Read more
STEM Activity
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Do you ever use math as a tool to solve interesting problems? In the 1970s math was often taught with simple worksheets. One teacher developed an exciting way to learn math and logic; he developed what is now known as the perimeter magic triangle puzzles. Try them out—and have some fun as you start thinking about counting in a whole new way! Read more
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Free science fair projects.