Posterous theme by Cory Watilo

Filed under: 2nd Grade

Amplification

2nd graders were amazed by the Star Wars sounds that were created by hooking a HUGE, garage door spring up to a coffee can amplifier.  Ask your student to tell you about it!  Afterward each student constructed their own rubber band amplifier.  Hopefully your child's amplifier remained in tact on the ride home.

 

 

2D Ear Song

(download)
As a class, 2D wrote a song about the ear.  Listen and follow along.  

Lyrics:

Sound travels through your ear,

Please listen, have no fear...

First your pinna-the part that's like a finna!

Then your ear canal-it's full of gas my pal.

Next comes drum-ra ta ta ta tum!

Then those 3 bones-they don't make no tones.

The cochlea has hair-sounds they do share!

Hey-you just got served by the hearing nerve.

The brain comes last-we learned it in science class!

**On a final note...the 3 bones that are mentioned in the song, are the hammer, the anvil and the stirrup.  These are the 3 smallest bones in the human body!

 

The Sound of Music

(download)
2G composed an impressive song about sound!  Take a listen...

Here are the lyrics so you can sing along:

-Sound travels better through solid than gas.

-It always has a message to pass.

-sound bounces, sound bounces, sound bounces

 

-You need to use your ears more than eyes.

-Listen well and you'll be wise.

-sound bounces, sound bounces, sound bounces

 

-Sound makes molecules vibrate and shake.

-For a sound wave it's a mini earthquake.

-sound bounces, sound bounces, sound bounces

 

-Goes through the canal, then hits the drum.

-Listen closely and you'll hear people hum.

-sound bounces, sound bounces, sound bounces

 

-Your eardrum protects your inner ear.

-To the wax dirt will adhere.

-sound bounces, sound bounces, sound bounces

 

-Three little bones, then hits the brain.

-Too much noise drives me insane!

-sound bounces, sound bounces, sound bounces

Sound Simulation

To help visualize that sound energy causes vibration, students were magically transformed into solid, liquid, and/or gas molecules. Ask your student to perform an experiment to prove that sound travels better through solid rather than gas.

Sound The Bell

Second grade students kicked off the new year with a sound walk. Students walked through the halls of HCES fine tuning their hearing, taking note of all the sounds that surround us each day. This is in preparation for the upcoming unit on sound energy. At the end of the unit, each second grader will create and build their own musical instrument from found items. So start saving interesting found items (coffee cans, corks, boxes, chopsticks, etc)!