Fifth Grade Science Projects (Page 53)

The Freezer: It Keeps Your Carrots Awake at Night!

Science Fair Project Idea

Scientific Method

Brrrr, freezing cold! It's the worst nightmare of any fresh fruit or vegetable! If the produce in your kitchen had legs, they would run in a panic every time the freezer door opens. Why? Well, freezing temperatures are not kind to fresh produce. Freezing kills the plant tissues and alters them on both a chemical and physical level. Chemically, the enzymes in the produce become more concentrated and do not work normally, so that discoloration, off-flavors, vitamin breakdown, and toughness may… Read more

Racing to Win That Checkered Flag: How Do Gases Help?

Science Fair Project Idea

Scientific Method

Watching professional racing-car drivers compete can be thrilling. The high speeds that racing cars can reach — up to 200 miles per hour (mph) and more! — put some unique demands on the vehicles. For example, to withstand high temperatures, the tires must be inflated with nitrogen gas, instead of air as with normal car tires. This enables the drivers to have better control over steering their cars as they race around the track. In this sports science project, you will inflate… 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

Do People Use Different Passwords for Different Accounts?

Science Fair Project Idea

Scientific Method

Do you ever use a password to log in to a computer, email account, or website? Do you use the same password for each one? Even if your password is very long or hard to guess, using the same password for many accounts can still be risky. If someone manages to find out your password (for example, via a phishing attack, or if you write your passwords down and someone finds the piece of paper), they could easily access many of your accounts. However, memorizing lots of different passwords can be… Read more

Image Compression vs. Image Quality: Finding the Best Tradeoff

Science Fair Project Idea

Scientific Method

In this project you'll learn about how digital image files are encoded, and how digital images can be compressed so that the files take up less storage space and can be transmitted more quickly. You will also measure the quality of compressed and uncompressed images, which will give you important insights into the tradeoffs between file size and image quality. Read more

Newspaper Tower

Science Fair Project Idea

Scientific Method

Predict how tall you can build a tower using only two sheets of newspaper as building material. You can't use tape, glue, staples, or anything else, just two sheets of newspaper. You can tear, bend, cut, or fold the newspaper. Try it out and see how close you can come to your prediction. Can you beat your prediction? As you're building, you may come up with ideas to make a better tower. Try them out! (It's not like the materials are expensive!) Here are some variations you might want to… Read more

How Does Soil Change with Depth?

Science Fair Project Idea

Scientific Method

What covers less than 10% of the Earth's surface, yet is a vital natural resource for terrestrial life? What filters ground water and supports most of our food production, not to mention the production of building materials and paper? The answer, often overlooked, is: soil. With this project you can get all the dirt on soil formation, soil horizons, and the composition of different soils. Read more

Is It a Country Ballad? Listen to the Beat!

Science Fair Project Idea

Scientific Method

Have you ever noticed that hip-hop songs have a fast tempo, while country ballads are usually slow? Do you think there is a correlation between the number of beats per minute (bpm) in a song and the type of music? You can explore whether different genres of music have different bpm ranges by measuring the bpm in several different songs from a number of different genres. Bpm can be measured using free music software, like the one listed below in the Bibliography, or by counting all the beats you… Read more

Out of Control!

Science Fair Project Idea

Scientific Method

Have you ever watched an inexperienced video game player pick up a controller and start playing a game? Often the player bumbles around trying to figure out which button makes the onscreen character jump, run, turn left, or perform other actions. Some games are different though, they have control schemes that are more real-world based. For example, most modern Mario Kart games give you the option of steering with a joystick or turning the entire controller like a steering wheel, which is more… Read more

Green Your PC: Help Your Computer Save Power

Science Fair Project Idea

Scientific Method

Is your PC an energy hog? Check out this science fair project to determine how much power your PC really uses, and if it is an energy hog, how you can reduce its appetite for energy. You'll learn how to profile and streamline your computer's power usage, while still enjoying every feature of your machine. Read more

Fifth Grade Science Projects (603 results)

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