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Science Buddies

Science Buddies: Making Patterns With Rubik's Cube

For Students 9th - 10th
This project challenges you to figure out how to make geometric patterns with Rubik's Cube. Leaving your cube in one of these positions makes it much more tempting to pick it up and 'fix' it. See if you can determine how different...
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Science Buddies

Science Buddies: Devising an Algorithm for Solving Rubik's Cube

For Students 9th - 10th
If you're the kind of person who has taken apart your Rubik's cube in order to grease the inside parts so it will move more smoothly, this could be a great project for you. This will show you three sets of move sequences that accomplish...
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Science Buddies

Science Buddies: Observatory Satellite Measures Motion of Coronal Mass Ejection

For Students 9th - 10th
The sun sometimes releases huge bursts of electrified gases into space. These bursts are called coronal mass ejections (or CMEs). When CMEs are directed towards Earth they can generate auroras, the spectacular atmospheric displays also...
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Science Buddies

Science Buddies: Correlation of Coronal Mass Ejections With Solar Sunspot Cycle

For Students 9th - 10th
Scientists have known for hundreds of years that sunspot activity waxes and wanes over a cycle that lasts approximately 11 years. In the 1970's, scientists discovered that the sun periodically blasts electrified gases into space, in huge...
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Science Buddies

Science Buddies: Buoyancy of Floating Cylinders

For Students 6th - 8th
This project presents an interesting puzzle. A disk of wood will float face-up, that is, with its circular cross-section parallel to the surface of the water. A long log of wood, however, floats with the circular cross-section...
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Science Buddies

Science Buddies: What a Drag!

For Students 6th - 8th
What makes some objects more streamlined than others? Find out which ordinary objects around your house are made to move smoothly through the water in this easy experiment. Which objects will produce the most drag when pulled through the...
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Science Buddies

Science Buddies: Molecular Scissors

For Students 9th - 10th
Ever used a pair of molecular scissors? Restriction enzymes are molecular scissors that cut DNA into pieces. Find out which enzymes will cut, and where by making a restriction map. Then you can figure out what will happen if you change...
Lesson Plan
Science Buddies

Science Buddies: Locating the Epicenter of an Earthquake

For Teachers 9th - 10th
When an earthquake happens, how are scientists able to determine the original location of the quake? In this project, you'll use archived data from a network of seismometers to find out for yourself. You'll create your own seismograms...
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Science Buddies

Science Buddies: Make a Hygrometer With Strands of Hair

For Students 6th - 8th
Does your hair go crazy when the weather turns damp? Did you know that strands of hair can relax and lengthen when the humidity increases and then contract again when the humidity decreases? In fact, hair strands can be used as the basis...
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Science Buddies

Science Buddies: Make Your Own Psychrometer

For Students 3rd - 8th
From the name, you might guess that a psychrometer is an instrument designed to measure your thoughts. Actually, it is an instrument that can help you forecast the weather. Read more to find out how it works.
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Science Buddies

Science Buddies: Spending Habits: Tightwads vs. Spendthrifts

For Students 9th - 10th
Do you have a hard time hanging on to your money or do you have a harder time letting it go? This project shows you how to conduct a simple survey to measure how people manage their money. Find out what percentage of your classmates are...
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Science Buddies

Science Buddies: Measuring Surface Tension of Water With a Penny

For Students 6th - 8th
Have you ever wondered what makes water 'bead' up on a freshly waxed car? In this project you'll investigate the chemistry of surface tension by measuring how many drops of water a penny can hold.
Activity
Science Buddies

Science Buddies: Gears Go Round!

For Students 3rd - 8th
Music boxes, bicycles, and clocks all have one thing in common: GEARS. You might say that gears make the world turn, since they are in so many mechanical instruments. How do they work and how do you know which gears to use? Find out in...
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Science Buddies

Science Buddies: Rubber Bands for Energy

For Students 3rd - 5th
If you've ever been shot with a rubber band then you know it has energy in it, enough energy to smack you in the arm and cause a sting. How can the energy of a rubber band be put to work? In this experiment you will find out how the...
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Science Buddies

Science Buddies: Which Simple Machines Do I Use the Most?

For Students 3rd - 5th
When you think of a machine, you probably think of computers or robots. Try this experiment to see how simple machines are used everyday around your house.
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Science Buddies

Science Buddies: How Does Color Affect Heating by Absorption of Light?

For Students 9th - 10th
Light is an example of an electromagnetic wave. Electromagnetic waves can travel through the vacuum of interstellar space. They do not depend on an external medium-unlike a mechanical wave such as a sound wave which must travel through...
Lesson Plan
Science Buddies

Science Buddies: Gigantic Triangles: Measuring Altitude (Inclinometer)

For Teachers 6th - 8th
If you've ever wondered how tall that bridge is, or how high your kite was, then this could be a good project for you. You'll learn how you can use the mathematics of right triangles to measure the height of an object with two...
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Science Buddies

Science Buddies: Measuring Light Intensity Using the Inverse Square Law

For Students 9th - 10th
You've probably heard that compact fluorescent light bulbs are more efficient than incandescent bulbs. More of the electricity they use goes into producing light, and less into producing heat than with incandescent bulbs. How much more...
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Science Buddies

Science Buddies: Do It Yourself Dna

For Students 3rd - 8th
All living things have DNA inside their cells. In this experiment you can make your own DNA extraction kit from household chemicals and use it to extract DNA from strawberries.
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Science Buddies

Science Buddies: What Makes a Dna Fingerprint Unique?

For Students 3rd - 8th
Do you like solving mysteries? In this experiment, you can find out how a DNA fingerprint can help you figure out whodunit. The answer might just be in the "sequence" of events.
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Science Buddies

Science Buddies: A Magnetic Primer Designer

For Students 3rd - 8th
How do scientists "copy" DNA? They use a process called the Polymerase Chain Reaction, or PCR. The key to making this process work is having a primer that will stick to the piece of DNA you want to copy, called a template. In this...
Activity
Science Buddies

Science Buddies: How Atmospheric Temperature Affects the Water Content of Snow?

For Students 9th - 10th
If you're lucky enough to live in a place that gets snow in winter, you know that the feel of the snow can vary a lot. Sometimes it can be light and fluffy, and other times heavy and wet. This project shows you how to use data from daily...
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Science Buddies

Science Buddies: Investigate Mpemba Effect Can Hot Water Freeze Faster Than Cold

For Students 9th - 10th
This physics project seems like it should have an easy answer. Instead, it turns out to be a great illustration of why it is important to base scientific conclusions on the outcome of controlled experiments. Things don't always turn out...
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Science Buddies

Science Buddies: Supercooling Water and Snap Freezing

For Students 6th - 8th
Can water remain liquid below its normal freezing point? If it does, that water is supercool(-ed). This project shows you a method for supercooling water. You can test water from different sources to see whether or not it can be...

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