In this video I use tuning forks to demonstrate the energy they can carry when vibrating. When tuning forks are vibrating it may be difficult to see but when they are dipped in water an amazing event happens.

In this simple science experiment, kids make spoon gongs with just string and a spoon and explore sound vibrations.

#pitch #sound #xylophone #energy #ngscience Learn how to make a glass bottle xylophone and observe how the pitch changes when the bottles are struck with a metal spoon. Head to ngscience.com for a range of related resources to enhance the teaching and learning of primary science in the classroom and at home. What Causes Sounds? We hear and make sounds all the time. We make sounds when we talk, clap or play a musical instrument. Objects like cars, sirens, phones and televisions make sound too. Sound is a form of energy we can hear. All sounds are made when something vibrates. Vibrations are rapid back and forth movements. When a bow is pulled across the strings of a violin, the strings vibrate and make sound. The vibrating strings cause the air around them to vibrate too. This creates sound waves. You hear the sound when the sound waves travel through the air to your ears. Describing Sounds We can describe the sounds we hear in different ways. One way to describe a sound is by its volume. Volume is how loud or soft a sound is. The sound of an airplane jet engine and the sound of thunder are examples of loud sounds. The rustle of leaves and a whisper are examples of soft sounds. A loud sound has more energy than a soft sound. Hitting a drum with a large force creates larger vibrations and a louder sound than if it were hit with a smaller force. Compare the sound of a rooster crowing to that of a lion’s roar. The volume of the sounds are similar – they are both loud sounds. However, they are different in pitch. Pitch is how high or low a sound is. The crow of a rooster is a high-pitched sound. The roar of a lion is a low-pitched sound. The faster an object vibrates, the higher the pitch of the sound. The length and thickness of the vibrating object also affects its pitch. You can see this by making different sounds on a guitar. A thin, short string produces a much higher-pitched sound than a longer, thicker string.

Have you ever wondered why the strings in a piano are of different lengths? In this activity we see how the frequency or pitch of a wire depends on its length. Take a box and stretch a rubber bad around it as shown in the video. Put two pencils beneath the band and listen to the sound produced on plucking the band. Keep increasing the distance between the pens and listen to the sound produced each time. You will notice that at the shortest length the sound is sharp and as the length increases the pitch becomes lower. In musical instruments, we either have strings of different lengths (piano, harp) or use our hands to change the length of the strings (guitar, violin) and thus produce sounds of different pitches.

Experimenting with pitch using 2 rulers and a table.

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Experiments for toddlers at home teach them different things. More easy science experiments for kids → https://www.youtube.com/playlist?list=PLI8daeOtwWLQxDcWyRXBlB9dLGTRZW4fR Try this Sound science experiment with your kids to hear how a Spoon and Fork sound. Everything you need is a plastic cup, a paper clip and ribbon. #Experimentsfortoddlers #Experimentsathome #KitchenScienceLab #soundexperiment #soundscienceexeriment #scienceexperiment Subscribe to KITCHEN SCIENCE LAB: https://www.youtube.com/channel/UCftqATvrsbewPIEbLabY4nA/?sub_confirmation=1 Visit us on Instagram: https://www.instagram.com/for_curious_children/

Explore the science of sound with these 4 experiments, then use your knowledge to make your own DIY instrument! Read about the science behind these here: https://babbledabbledo.com/how-to-make-a-diy-instrument-with-simple-materials/ Thank you to our sponsor SAE International’s A World In Motion® (AWIM) STEM@home program for these fantastic experiments. See more here: https://sae.org/babble-dabble-do-build Music: "Magical Mystery" standard license via Envato Elements