Seventh Grade Projects, Lessons, Activities (Page 104)

The Power of Your Eyes: How Vision Affects Balance

Science Fair Project Idea

Scientific Method

Staying balanced might feel simple, but there’s so much more involved than you would think! The way your body balances is actually the result of several body systems working together. Your muscles and joints provide feedback (proprioception) about where your body is in space, your inner ear senses movement and position, and your eyes give you important visual cues about your surroundings. Vision is especially important because it helps your brain judge where you are in relation to the… Read more

The Role of Fats in Making a Delicious Pastry

Science Fair Project Idea

Scientific Method

Apple pie is one of America's traditional desserts. It can be enjoyed on its own or with a scoop of vanilla ice cream. The cool sweetness of the ice cream combines with the warm apples and flaky pastry to create a taste sensation. However, if the pastry that surrounds the apples is heavy or chewy then that can really affect how much you enjoy this treat. But how do you make a pastry that is light and flaky? In this cooking and food science fair project, you will find out by experimenting with… Read more

The Speed of Light: Explore Solar Energy with a Supercapacitor Car Motor!

Science Fair Project Idea

Scientific Method

Solar cells are devices that can be used as a source of power when there is light shining on them, but they stop producing energy when they are not in the light. One way to store the solar energy for later use is to use a solar cell to charge something called a capacitor. The capacitor stores the energy as an electric field, which can be tapped into at any time, in or out of light. In this electronics science project, you will use parts of a solar car to experiment with the energy storage… Read more

The True Cost of a Bike Rack: Aerodynamics and Fuel Economy

Science Fair Project Idea

Scientific Method

Race car drivers need every advantage they can get to give them the competitive edge in a race. In addition to human factors, like driving skill and reaction time, their cars must overcome physical forces, like air resistance, to maintain their high speeds. While this science project will not have you driving around a race track at 200 miles per hour, you will get to test how increased air resistance affects a real car's fuel economy. You will do this by measuring and comparing the gas mileage… Read more

The Turn of the Screw

Science Fair Project Idea

Scientific Method

How much force is required to advance a lag bolt (large wood screw with a hex-shaped head) into a piece of wood? You can measure the force by using a spring scale attached to the handle of ratchet. Pull on the spring scale until the bolt starts to turn, and note the required force from the spring scale. There are many potential experiments you could try. Think about answering the following questions: How does the force change as the bolt advances deeper into the wood? Why? How does the… Read more

The Viscosity of Motor Oil

Science Fair Project Idea

Scientific Method

The insides of a car engine get very hot when the engine is running. Motor oil lubricates the moving parts, to keep the engine operating smoothly. What happens to motor oil as the engine temperature goes up? Read more

The Wright Stuff: Using Kites to Study Aerodynamics

Science Fair Project Idea

Scientific Method

The Wright brothers used kites extensively to test their design ideas in the years leading up to their first successful airplane flight. With this science project, you'll learn about kite aerodynamics, and then come up with your own hypothesis about building or flying a kite. You can test your hypothesis two ways: with an online kite simulation program from NASA, and outdoors with the real thing! A great feature of this science project is that it has many possible variations, so you can decide… Read more

Throwing You Some Curves: Is Red or Blue Longer?

Science Fair Project Idea

Scientific Method

This a straightforward, but interesting, project in geometry. It is a good first proof to try on your own. You should be able to figure it out by yourself, and you'll gain insight into a basic property of circles. Figure 1 below shows a semicircle (AE, in red) with a series of smaller semicircles (AB, BC, CD, DE, in blue) constructed inside it. As you can see, the sum of the diameters of the four smaller semicircles is equal to the diameter of the large semicircle. The area of the larger… Read more

Tightening the Turns in Speed Skating: Lessons in Centripetal Force & Balance

Science Fair Project Idea

Scientific Method

Enjoy the thrill and pace of speed skating, do you? Well, this project's for you. Fast turns around the track become your laboratory tests in these experiments whether you skate on ice, wood, or pavement. The goal is to determine which type of turns are best in a race-tight, medium, or wide-and then to figure out why. You'll analyze the speed and stability of your turns and compare your results with those of a few fellow skaters. This is a friendly competition where the prize is learning… Read more

To Infinity and Beyond: Plan a City of the Future with Sim City.

Science Fair Project Idea

Scientific Method

Everyday, people in your city or town walk to school, ride the bus and go to work, and go to the library to research their science fair projects. But what if the library was 20 miles away from your home? Would you go to the library? What if there were no police officers or fire stations in your city, or if they were located across town, away from where most people live? What if there were no movie theaters? What would you do with your friends? Many people really like living in cities in which… Read more

Seventh Grade Projects, Lessons, Activities (1,070 results)

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