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When objects move they sometimes make sounds

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When objects move they sometimes make sounds

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When I first saw this video I thought it was fake. Perhaps an April Fool's joke. But, not only is it real, it is a phenomenon that's been known for hundreds of years. Why am I just hearing about it?

(there's also a full version in which you can hear the tones: https://www.youtube.com/watch?v=1yaqUI4b974)

So, what are we seeing here?

This demonstration is by a prolific YouTube user who goes by the handle brusspup. I've been enjoying his amazing visual illusions for a few years - and I'm not the only one! His videos have wracked up tens of millions of views.

But this one isn't an illusion. Rather, it's a clever way to reveal patterns not normally visible to our senses. And it traces back to the 18th - and even the 17th - century and a somewhat obscure scientist.

Ernst Chladni was a German-born Hungarian physicist and musician who did pioneering work in acoustics and also in the study of meteorites.

In fact, in 1794, he was the first to publish the outlandish idea that meteorites were extraterrestrial in origin, a proposal for which he was ridiculed. At the time they were thought to be of volcanic origin. But we all know who got the last laugh on that one. He was vindicated within ten years - within his lifetime - when a dramatic meteor shower left hard-to-dispute meteoritic evidence all over a French town.

But the phenomenon seen in the video is the one for which Chladni is perhaps best known. It is a technique to reveal the complex patterns of vibration in a rigid surface.

From Wikipedia...

"A plate or membrane vibrating at resonance is divided into regions vibrating in opposite directions, bounded by lines of zero vibration called nodal lines... Chladni's technique... consisted of drawing a bow over a piece of metal whose surface was lightly covered with sand. The plate was bowed until it reached resonance, when the vibration causes the sand to move and concentrate along the nodal lines where the surface is still, outlining the nodal lines."

Modern versions of the demonstration tend to use modern equipment such as loudspeakers and signal generators with adjustable frequency. In the video, as the frequency is altered we are able to see how the patterns in the plate assume various intricate shapes. The sand is pushed away from the areas of vibration and gathers in the places where the surface remains motionless (the nodal lines).

The beautiful patterns that emerge are now called Chladni figures, although Chladni was actually building on earlier experiments performed by Robert Hooke, who, in 1680, observed these nodal patterns in vibrating glass plates.

Thus, Chladni, like so many scientists, was "standing on the shoulders of giants." And, in his case, not just any giant, but the very giant to whom Isaac Newton was writing when he famously explained how he was able to see further than others who had come before him.

UPDATE: If you're interested in the physics, be sure to check out a very in-depth explanation at Skulls in the Stars, which includes a bunch of original images of wonderful patterns and also relates the subject to lasers and quantum mechanics. Recommended!

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Chladni Figures: Amazing Resonance Experiment

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When I first saw this video I thought it was fake. Perhaps an April Fool's joke. But, not only is it real, it is a phenomenon that's been known for hundreds of years. Why am I just hearing about it? (there's also a full version in which you can hear the tones: https://www.youtube.com/watch?v=1yaqUI4b974) So, what are we seeing here?

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What is Sound? | Physics for Kids | SciShow Kids

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Use simple tools and materials to conduct an investigation. 

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Use simple tools and materials to conduct an investigation. 

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Conduct simple investigations to answer questions. 

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Conduct simple investigations to answer questions. 

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 Investigate physical change by making observations and asking questions. 

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 Investigate physical change by making observations and asking questions. 

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 Recognize that objects vibrate to make sound. 

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 Recognize that objects vibrate to make sound. 

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 Scientists use evidence to develop and communicate outcomes.

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 Scientists use evidence to develop and communicate outcomes.

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Scientists use tools to conduct investigations, gather data, and answer questions

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Scientists use tools to conduct investigations, gather data, and answer questions

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  People learn about things by asking questions and making careful observations

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  People learn about things by asking questions and making careful observations

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Some objects make sounds by vibrating (e.g., rubber band, guitar string).

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Some objects make sounds by vibrating (e.g., rubber band, guitar string).

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18 EASY SCHOOL MAGIC TRICKS AND SCIENCE EXPERIMENTS

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Sid's Holiday Adventure - Part 1 | Sid the Science Kid | PBS LearningMedia

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In Part 1 of Sid's Holiday Adventure, Sid explains that, in his house, they celebrate Christmas, Chanukah, and Kwanzaa. Sid finds out that his family is traveling to Minnesota for the holidays, so he decides to investigate cold weather.

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Sound: Loud, Soft, High, and Low - Natalie M. Rosinsky 

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Sound: Loud, Soft, High, and Low - Natalie M. Rosinsky 

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 Vibrations Make Sound - Jennifer Boothroyd 

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 Vibrations Make Sound - Jennifer Boothroyd 

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It is important to share what you have learned with others. Scientists often find solutions to problems by knowing the results of other scientists' experiments. Communicating your results is often the first step to clearly identifying a problem and beginning to think about possible solutions.

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An experiment is a process that, when performed, results in exactly one of many observations. These observations are called the outcomes of the experiment. The set of all possible outcomes for an experiment is called a sample space, and is denoted by S.

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An experiment is a process that, when performed, results in exactly one of many observations. These observations are called the outcomes of the experiment. The set of all possible outcomes for an experiment is called a sample space, and is denoted by S.

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Lucy Calkins  Informational Writing   catapult

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Lucy Calkins  Informational Writing   catapult

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Kids question the world around them every day and there is so much to learn through experimentation with simple materials. You can absolutely begin using the scientific method with young kids. Below we'll share with you, how and when to introduce the scientific method for kids. There are so many different ways to enjoy science activities and the key is choosing the right one for your kids!

USING THE SCIENTIFIC METHOD FOR KIDS!

WHAT IS SCIENCE AND WHY LEARN IT?

The word "science" comes from the Latin word that means knowledge. So we can think of science as a way to gain knowledge of the world around us!

The word "method" comes from the Greek word that means road. If you put the words "science" and "method" together, you get something like the road or path to gaining knowledge.

This is called the scientific method! A way to figure things out or a process to gain knowledge.

WHAT IS THE SCIENTIFIC METHOD FOR KIDS?

The scientific method is a process or method of research. A problem is identified, information about the problem is gathered, a hypothesis or question is formulated from the information, and the hypothesis is put to test with an experiment to prove or disprove its validity. Sounds heavy...

What in the world does that mean?!? The scientific method should simply be used as a guide to help lead the process. It's not set in stone.

You don't need to try and solve the world's biggest science questions! The scientific method is all about studying and learning things right around you.

As children develop practices that involve creating, gathering data evaluating, analyzing, and communicating, they can apply these critical thinking skills to any situation.

WHAT IS A SCIENTIST FOR KIDS?

A scientist is someone who starts with questions, so kids make great scientists! As kids explore the natural world they have questions just like real scientists.

Scientists build on facts and obtain new knowledge in regard to their question. They often work in small steps to slowly add to their understanding.

CAN YOUNG KIDS USE THE SCIENTIFIC METHOD?

Kids are great scientists at any age and can use the scientific method or science practices in context to what they are learning. It can be adapted for any age!

The scientific method is a useful tool for introducing kids to a logical way to solve scientific problems.

Scientists use the scientific method to study, learn, and come up with an answer!

The scientific method is a process that helps double-check that answers are correct and the correct results are obtained through careful planning. Sometimes the guesses and questions change as you run your experiments.

Kids can use the scientific method too on questions that are relevant to them!

Let's break the scientific method for kids down into 6 parts, and you can easily see how each of these parts can be incorporated into your next science experiment. Soon we will be adding more on what is now referred to as best science practices for use with NGSS.

You can also choose to use the principles of the scientific method in a way that makes sense depending on the ages and abilities of your kids.
Looking for easy to print activities, and inexpensive science experiments? We have you covered... Click below to get your quick and easy science activities.
The Scientific Method Includes...

1. Making initial observations,

2. Coming up with a question of interest that is based on the observations

3. Developing a hypothesis or prediction to go along with the question

4. Experimenting and testing

5. Gathering and recording results of tests and experiments and drawing conclusions

6. Sharing and discussing results

Whoa... Wait A Minute! That sounds like a lot for a young kid!
You are absolutely correct. Depending on your kid's abilities, following all 6 steps precisely is just not going to go well. Someone is going to get frustrated, bored, and turned off from just how cool science can be. We definitely do not want that to happen!

The Scientific Method For Preschoolers

Use the 6 steps of the scientific method as a guideline in the back of your mind. You can actually cover most of the steps pretty well just by talking with your kids about...

No writing required! It's also best to pick some pretty straight forward ideas that aren't overly involved or complicated to set up and test. In fact, kids always have burning questions and "what if's".

See if you can tackle their next "what if" using the scientific method by listening carefully to their conversations. You can even have them keep a journal with their "what if" questions for your next science time.
YOU MAY ALSO LIKE: Science Activities For Preschoolers
SCIENTIFIC METHOD STEPS

The 6 steps to using the scientific method are outlined below and are great for science at home with your kids or in the classroom! We have also included simple scientific method experiments.

You can download our FREE Scientific Process journal pages and check out our NEW Quick STEM Activities Design Process starter pack below!

1: Make Observations

There are tons of everyday activities that would make cool science experiments using the scientific method. Listen to what your kids talk about and see happening. My son noticed that ice melted pretty fast in his water.

2: Come Up With A Question
You can also use this one: What Dissolves In Water?
Your kids' observations should lead to some sort of question. For my son and his ice observations, he came up with his own question. Does ice melt faster in different liquids? His curiosity on what happens to the ice in liquids is a simple science experiment perfect for using the scientific method.

3: Develop a Hypothesis or Prediction
Next! Do Some research and come up with ideas!

You have made your observations...

And you have your question...

Now you need to make a prediction about what you think will happen.

A hypothesis is not simply a guess! It's a statement of what you believe will happen based on the information you have gathered.

My son thinks that ice will melt faster in juice than it will in water. Maybe he just wants to get a drink of juice out of it.

4: Conduct An Experiment

We made a prediction that ice will melt faster in juice than it will in water, and now we have to test our hypothesis. We set up an experiment with a glass of juice, a glass of water, and an ice cube for each.

For the best experiments, only one thing should change! Here, we are changing the type of liquid we use but keeping the ice cube, the temperature, and measurements of the liquid the same. If too many factors change at once, you can not accurately state what the results are.

The liquids should be roughly the same temperature (as close as possible) and measured to the same amount, so we left them out to come to room temperature. This could also be tested right out of the fridge!

Set up a stopwatch or set a time limit to observe the changes!

5: Record Results and Draw Conclusions

Make sure to record what is happening as well as the results. Note changes at specific time intervals or after one set time interval.

Note when each ice cube is completely melted.

Add drawings if you wish of the setup up and the end results.

Was your prediction accurate? If it was inaccurate, record why.

Write out a final conclusion to your experiment.

6: Results

This is the opportunity to talk about your hypothesis, your experiment, your results, and your conclusion!

ALTERNATIVE IDEAS: Switch out an ice cube for a lollipop or change out the liquids using ones like vinegar and cooking oil.

SCIENTIFIC METHOD FOR YOUNGER KIDS!

As I discussed briefly above, even kindergarten and preschoolers can get practice using the scientific method with help from the participating adult. You can achieve this simply through conversation during a science experiment! (Separate printable sheets below too!)

SCIENTIFIC METHOD EXAMPLES
Get the kiddos thinking and asking questions through your prompts, and they will be well on their way to mastering the scientific method!
What's magnetic and what's not or what sinks and what floats types of experiments are great practice for using the scientific method.

STEP 1: Your kid notices that something has sunk in a bowl of water.

STEP 2: He asks if all things sink in water.

STEP 3: You ask what he thinks will happen if he puts different things in the water. He thinks they will all sink because they are to heavy.

STEP 4: You set up a container of water and an assortment of objects that will either sink or float {best to have a good mix}. With each item your kid picks up, have him/her tell you whether it will sink or float before letting go of the item.

STEP 5: Your kid will immediately draw a conclusion about each individual object. Then he can also draw a final conclusion based on his initial prediction that all things will sink in the water because they are to heavy. Do all things sink in water?

I still can remember back to that very first baking soda and vinegar science experiment, the wonder in his eyes, and the way he giggled with each reaction. The amazement that came from a simple chemical reaction {that pretty much anyone can try} was awesome!

That single experiment has fueled his love of science and together we are using the scientific method in our science activities every time we set up a new experiment.

SUGGESTED BOOKS:

Ada Twist, Scientist by Andrea Beaty

How To Think Like a Scientist: Answering Questions by the Scientific Method by Stephen P. Kramer (older kids)

Investigating the Scientific Method with Max Axion, Super Scientist (Graphic Science) by Donald B. Lemke (older)

11 Experiments that Failed by Jenny Offil and Nancy Carpenter

Mad Margaret Experiments with the Scientific Method (In the Science Lab) by Eric Mark Baum

What is Science? by Rebecca Kai Dotlich (younger)

Zoe and Sassafrass Series by Asia Citro

SCIENTIFIC METHOD EXPERIMENTS

For more ways to use the scientific method for kids, click on the links below.
Looking for easy to print activities, and inexpensive science experiments? We have you covered... Click below to get your quick and easy science process pack to add to your next science activity.

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Scientific Method For Kids with Examples - Little Bins for Little Hands

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Kids question the world around them every day and there is so much to learn through experimentation with simple materials. You can absolutely begin using the scientific method with young kids. Below we'll share with you, how and when to introduce the scientific method for kids.

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No matter your age, background, or experience, effective communication is a skill you can learn. The greatest leaders of all time are also fantastic communicators and orators. In fact, communications is one of the most popular college...

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Need info on school and learning? It's all here: tips for choosing and starting school, how to cope with school issues and bullying.

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What is Sound? | Physics for Kids | SciShow Kids

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What is Sound? | Physics for Kids | SciShow Kids

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How to Make a Harmonica | Science Projects

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Planning and Carrying Out Investigations. Scientists and engineers plan and carry out investigations in the field or laboratory, working collaboratively as well as individually. Their investigations are systematic and require clarifying what counts as data and identifying variables or parameters.

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Planning and Carrying Out Investigations. Scientists and engineers plan and carry out investigations in the field or laboratory, working collaboratively as well as individually. Their investigations are systematic and require clarifying what counts as data and identifying variables or parameters.

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It is important to share what you have learned with others. Scientists often find solutions to problems by knowing the results of other scientists' experiments. Communicating your results is often the first step to clearly identifying a problem and beginning to think about possible solutions.

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It is important to share what you have learned with others. Scientists often find solutions to problems by knowing the results of other scientists' experiments. Communicating your results is often the first step to clearly identifying a problem and beginning to think about possible solutions.

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Lucy Calkins  Informational Writing/ Mystery Doug

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Lucy Calkins  Informational Writing/ Mystery Doug

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The object that makes the noise vibrates (our bell). The air molecules vibrate as the sound moves through the air. The eardrum vibrates when the sound wave reaches it....Three things vibrate when sound is created:the source object.the molecules in the air (or another medium e.g. water)the eardrum.

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The object that makes the noise vibrates (our bell). The air molecules vibrate as the sound moves through the air. The eardrum vibrates when the sound wave reaches it....Three things vibrate when sound is created:the source object.the molecules in the air (or another medium e.g. water)the eardrum.

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Please ensure you have JavaScript enabled in your browser. If you leave JavaScript disabled, you will only access a portion of the content we are providing. Here's how.

Introduction

You might know that sound is caused by vibrations, but did you know that sound can also make things vibrate? You might have noticed this if you have ever been at a concert or in a car with the stereo booming. Sometimes the sounds are so loud that you can feel the vibrations! However, sounds that loud can damage your hearing, so in this project you will investigate them using something safer.

Credits

Ben Finio, PhD, Science Buddies

This activity is not appropriate for use as a science fair project. Good science fair projects have a stronger focus on controlling variables, taking accurate measurements, and analyzing data. To find a science fair project that is just right for you, browse our library of over 1,200 Science Fair Project Ideas or use the Topic Selection Wizard to get a personalized project recommendation.

Materials

Cup or bowl

Rubber band that fits around the cup or bowl

Plastic wrap

Colored sprinkles (you can also use salt, but the sprinkles are easier to see)

Large plate or tray

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Make Sprinkles Vibrate with Sound | STEM Activity

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Please ensure you have JavaScript enabled in your browser. If you leave JavaScript disabled, you will only access a portion of the content we are providing. Here's how. You might know that sound is caused by vibrations, but did you know that sound can also make things vibrate?

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The Secrets Of Vibration & Frequency! (The Power Of Sound!)

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396 Hz ❯ LET GO of FEAR ❯ Remove NEGATIVE BLOCKS ❯ Marimba Meditation Music

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417HZ   417 Hz – Undoing Situations and Facilitating Change

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417HZ   417 Hz – Undoing Situations and Facilitating Change

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417 Hz Healing music - Let go of mental blockages, Remove negative energy, Ancient Frequency music

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432Hz Miracle Tone - Raise Positive Vibrations | Healing Frequency 432hz | Positive Energy Boost

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:528 Hz – Transformation and Miracles (DNA Repair)

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:528 Hz – Transformation and Miracles (DNA Repair)

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528Hz | MIRACLE TONE | Healing Frequency Known to Repair DNA | 9 Hrs

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963Hz 》YOU ARE THE UNIVERSE 》Manifest Anything You Desire

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The Solfeggio music is key to the universe and are being used for healing purpose. When the mind and body is in tuned to Solfeggio Frequencies, you can easily achieve a greater sense of awakening and deep healing. These are considered to bring spiritual blessings in life and keep the body, mind and soul in total harmony.

639 Hz solfeggio frequency enables us to connect and balance harmonious interpersonal relationship. This is being used for bringing harmony in family, friends and in social circle. This ancient solfeggio frequency enhances communication, understanding, tolerance and love.

Benefits of 639 Hz frequency

1. It enables creation of harmonious interpersonal relationships.

2. This tone is helpful in dealing with relationships problems - those in family, between partners, friends.

3. 639 Hz frequency can be used to encourage the cell to communicate with its environment

4. Enhances communication, understanding, tolerance and attract love.

5. Very helpful for balancing Heart Chakra.

6. Raises Positive energy

Here is a beautiful Miracle Tone Healing Music for Pure Positive Love Energy

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639 Hz Pure Tone - Solfeggio Frequency Attracts Love and Raises Positive Energy

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The Solfeggio music is key to the universe and are being used for healing purpose. When the mind and body is in tuned to Solfeggio Frequencies, you can easily achieve a greater sense of awakening and deep healing. These are considered to bring spiritual blessings in life and keep the body, mind and soul in total harmony.

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741 Hz ❯ REMOVES TOXINS ❯ Full Body Cell Level Detox ❯ Healing Music || Solfeggio Frequency Music

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852 Hz ❯ AWAKEN INTUITION || Remove Fear, Self Doubt & Subconscious Fears || 852Hz