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Fourth Grade Science Projects (30 results)

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How Fast Can You Become a Virtual Rock Star?
Science Fair Project Idea
Scientific Method
Learning to play an instrument can be a lot of fun, especially when you can pretend to be a rock star as you learn! In this science fair project, you will study how your score in a music video game changes as you play and practice. You'll need a video game where you use a controller shaped like a musical instrument. Two examples include Guitar Hero and Rock Band, but there may be more! In these games, playing requires nothing more than a sense of the music's beat, and ridiculously fast fingers,… Read more
How to Build on Mars!
Science Fair Project Idea
Scientific Method
The idea of a colony on Mars is exciting! In this science project, you will tackle one of the challenges a Martian colony will face: what will buildings on Mars be made of? In this project, you will make bricks from Martian-like ground cover and measure how strong these bricks are. 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
Hydroponics: Gardening Without Soil
Science Fair Project Idea
Scientific Method
What do plants need to grow? Most of us would answer that they need light, air, water, and soil. But by using a process called hydroponics, you can grow plants without soil! How does it work? Try this project and see for yourself! Read more
Measuring the Moon's Brightness
Science Fair Project Idea
Scientific Method
Sometimes a full moon can be so bright, you can walk around in the dark without a flashlight. How much brighter is a full moon than the other phases of the moon? How is the brightness of the moon measured? Read more
Minding your Mummies: The Science of Mummification
Science Fair Project Idea
Scientific Method
Have you ever seen or heard of the movies The Mummy or The Mummy Returns? Mummies have always played a part in nightmares for Western cultures, but in ancient Egypt, mummification was a serious religious ritual. They believed that preserving human remains was necessary so that the previous owner could enjoy the fruits of the afterlife. In this science fair project, you will learn about the rituals and science of mummification by mummifying a hot dog. Read more
Perfect Plating: Which Food Presentation Technique is Best?
Science Fair Project Idea
Scientific Method
Did you know that people eat with their eyes as well as with their mouths? Food presentation—also called plating techniques or garnishing—makes food appear more appetizing. Checking out how the food looks is the cook's last task and the diner's first. Food that is well-presented is beautiful, colorful, and captivating. Not only does it make the diner really want to eat, but good presentation also allows the diner to identify the food ingredients, their quality, and the technique… Read more
Point, Click, Shoot! Photography with a Pinhole Camera
Science Fair Project Idea
Scientific Method
Do you like to take pictures with a camera? It can be fun to capture important and humorous events in your life on film or on a memory card. Photography is a hobby that people of all ages enjoy because they can creatively express themselves both artistically and scientifically. But when did the science of photography start and have cameras always been such complicated pieces of equipment? In this photography science project, you will experiment with a simple camera called a pinhole camera and… Read more
Polymer Permeability: Which Plastic Wrap Prevents Evaporation Best?
Science Fair Project Idea
Scientific Method
There are three different kinds of polymers used for kitchen plastic wrap: low density polyethylene (LDPE) (e.g., Handiwrap or Glad Wrap), polyvinyl chloride (PVC) (e.g., Reynolds PVC Foodservice Wrap or Boardwalk PVC Food Wrap Film) and polyvinylidene chloride (PVdC) (note: Saran Wrap used to be made with polyvinylidene chloride, but has switched to polyethylene. You will need to search for another brand that uses PVdC if you want to test it). Which of these materials is least permeable to… Read more
Save Those Spoiling Strawberries!
Science Fair Project Idea
Scientific Method
Fresh strawberries and summer just go together. Walking through the local farmers' market on a warm day, the bright, red strawberries call out to you, beckoning you to buy them and take them home. The next day, as you get ready to savor the delicious berries, you notice that yesterday's juicy, red strawberries are now covered in...eewwww, mold! In this cooking and food science fair project, you will investigate thermotherapy and whether this technique can preserve strawberries and prevent mold… Read more
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