Second Grade Science Experiments (Page 119)

Science Fair Project Idea

Scientific Method

Many websites ask you to answer "security questions," like "What is your mother's maiden name?," to recover your account if you ever forget your password or login ID. However, sometimes the answers to those questions are easy to find online. Does this pose a risk to the security of important accounts like email and online banking? Are people even aware that this information about them is available online? In this project, you will investigate how secure people think security questions are, and… Read more

How Strong Is Your Hair?

STEM Activity

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Have you ever wondered how strong hair is? When we talk about our hair we usually discuss color, length or texture. But what about hair strength? If you look at a strand of hair, it looks like a very thin string. In fact, it is on average only about 0.1 millimeters thick. It doesn't seem like such a thin string could withstand much force. How much weight do you think a single strand of hair can carry? In this activity you will put a hair to the test and find out. You might be surprised by your… Read more

How to Harvest Water from Fog

STEM Activity

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How long do you think you could survive without drinking any water? Only three to four days! Your body needs water to function properly. We also rely on water for cooking, cleaning and many other activities. You might not think about getting enough water if you can get it easily by turning on your faucet. But what about areas that don't have a reliable water supply? In this activity you will learn about one creative way to collect water—from the air! Read more

How to Make a Piano Sing

Science Fair Project Idea

Scientific Method

The renowned pianist Vladimir Horowitz once said, "The most important thing is to transform the piano from a percussive instrument into a singing instrument." In this project, you will learn how you can make piano strings sing using sympathetic vibrations. Find out which notes make another one sing the longest by measuring their sound intensities using a smartphone equipped with a sensor app. Read more

How Vines Find Their Spines: Thigmotropism in Morning Glory Tendrils

Science Fair Project Idea

Scientific Method

We tend to think of plants as immobile, but the tendrils of a vine, such as the morning glory, actually move in response to touch. Tendrils wrap around structures, which give the plant something to grow on. In this science fair project, you will investigate how plant tendrils respond to touch stimuli. Read more

Hula Hoop Science: Weekly Science Project Idea and Home Science Activity Spotlight

Blog Post

In this week's spotlight: a pair of science projects perfect for burning off some energy and getting your "spin" on. What is the secret to a good hula hoop? Experiment with the weight and size of different homemade hoops to see how each affects your ability to keep a hoop in motion. What's the best combination? Can you hula hoop longer with a lighter or heavier hoop? Why? Motion Mania: Applying Physics to Hula-Hooping (full Science Buddies Project Idea) Swiveling Science: Applying… Read more

Hurricanes

Science Fair Project Idea

Scientific Method

Unless you live in the Southern states, you only hear about the most destructive hurricanes. In fact hurricanes occur every year, even multiple times a year. Each hurricane is a tropical storm related to cyclones and tornadoes, some big and some small. Each hurricane is measured based upon several variables like: wind speed, diameter, direction of movement and speed of movement. Does the size of the hurricane correlate with the wind speed? What information can the eye of the hurricane… Read more

Hurricanes and Climate

Science Fair Project Idea

Scientific Method

The past few years have histories of extremely powerful and dangerous storms. Storms have also become more numerous over the last few years. To investigate potential effects of climate on hurricane number and strength, in this project you will study the effects of El Niño on hurricanes. The goal of this project is to study the historic relationship between the El Niño/Southern Oscillation (ENSO) and the number and strength of hurricanes, either in the Atlantic or Pacific Oceans. Since… Read more

Investigating the Role of Procedural Music in Video Games

Science Fair Project Idea

Engineering Design Process

Have you ever wondered about the various types of music in a video game you've played? You may not have paid much attention to the music, but its job was to enhance your gaming experience. In fact, the wrong kind of music can detract from the atmosphere of the game. Can you imagine the music in Mario KartTM playing in Street Fighter®? In a game, music can indicate many different things, such as a special or new event, shift of mood, or the arrival of a character. This kind of music is… Read more

Is It OK to Cheat If Everyone Else Is?

Science Fair Project Idea

Scientific Method

Tests, homework, taxes, speed limits, sports: there's always the possibility of cheating. Design a survey to investigate attitudes about cheating. Are some kinds of cheating worse than others? Are there times when it is OK to cheat, or is cheating always wrong? Do people who admit to cheating have the same attitudes as those who don't? Read more

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