Projects, Lessons, Activities (Page 103)

Spinning Colors: How Do Primary Colors Combine to Make New Colors?

Science Fair Project Idea

Scientific Method

Did you know that sunlight can actually be separated into the colors of the rainbow? And the light of different colors can be added together to make white light or new colors. This is an area of study where art and science overlap. In this science fair project, you will explore this area by drawing or painting "pie slices" onto a white circle and then combining them to make a new color by spinning the wheel using an electric drill. Read more

Sprouting Sweet Potatoes Slips

Science Fair Project Idea

Scientific Method

Have you ever enjoyed eating a tasty sweet potato? They can be served as yummy mashed sweet potatoes with melted butter, turned into golden-brown sweet potato fries, or prepared in many other scrumptious ways. Did you know that you can make a sweet potato grow into a sweet potato plant, and grow several sweet potatoes this way? In this science project, you will grow your own sweet potato plants and investigate what part of the sweet potatoes is needed to grow the plants. Read more

Squirmy Wormy: Which Soil Type Do Earthworms Like Best?

Science Fair Project Idea

Scientific Method

Do you think worms are gross? Or that they are only good for birds or fish to eat? Well, in this zoology science project, you will find out that this lowly animal helps to put food on your table, too, by all the hard work that it does in the dirt. In this science project, you will discover in what kind of soil it likes to do its work. It is wiggly good fun! Read more

Standing Waves on a Guitar

Science Fair Project Idea

Scientific Method

In this project, you'll investigate the physics of standing waves on guitar strings. You'll learn about the different modes (i.e., patterns) of vibration that can be produced on a string, and you'll figure out how to produce the various modes by lightly touching the string at just the right place while you pick the string. This technique is called playing harmonics on the string. By the way, we chose a guitar for this project, but you can do the experiments using any stringed instrument, with… Read more

Static Science: How Well Do Different Materials Make Static Electricity?

STEM Activity

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Have you ever noticed that some types of clothes are more susceptible to static cling than others? For example, a wooly sweater can have a lot of static cling, but clothing made out of cotton doesn’t get static cling nearly as much. How well do other materials around the house produce static electricity? In this science activity, you’ll explore this by making a simple, homemade electroscope and testing it out. The results may shock you! Read more

Stomata Printing: Microscope Investigation

Lesson Plan Grade: 3rd-12th

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"Backlit Leaf" © 2011 Threthny Plants have many crucial roles on our planet, and among these is the gas exchange that happens within their leaves. As plants take in carbon dioxide from our atmosphere, they release oxygen and retain the carbon. In this lesson, students will investigate leaves up close to look for the structures responsible for gas exchange. Read more

Strength in Numbers: Spaghetti Beams

STEM Activity

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Have you ever helped your parents cook a pot of spaghetti? Strands of spaghetti are pretty long, so sometimes people break them in half so they fit into the pot more easily. How exactly does the spaghetti break? And what does this have to do with science? It turns out engineers and materials scientists study how materials break when they are bent. While professional engineers might be more concerned with steel beams in a bridge, you can still do a fun experiment with some pasta in your kitchen. Read more

Stretchy Balloon Science

STEM Activity

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Balloons are fun and come in a variety of sizes, colors, and forms that makes them well suited for decorations, water play, modeling, and other creative activities. But balloons also have uses outside of recreation; weather balloons, balloons used to widen obstructed arteries, and balloons that provide transportation are just a few examples. The first balloons were made of animal bladders or intestines. This made way for the latex, rubber, and nylon fabric balloons we see today. Have you ever… Read more

Study Bottle Rocket Performance with Electronic Sensors

Science Fair Project Idea

Scientific Method

Rocket design and operation is a fascinating field and analyzing the flight path provides insight into the rocket's performance. In this project, you will take measurements of the flight path to evaluate how a change in the rocket design or launch procedure impacts the rocket's performance. Initially, while the bottle rocket expels water (or the rocket expels exhaust), the rocket gets a boost. This push is referred to as thrust and projects the rocket forward. Earth's gravity pulls the rocket… Read more

Sunspot Cycles

Science Fair Project Idea

Scientific Method

Sunspot activity has been monitored continuously since about 1700. The historical data shows that sunspot activity rises and falls in a roughly 11-year cycle. This project shows you how you can use both graphical and statistical analysis to look for patterns in cyclical data. Read more

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