Found 40 - 50 results of 60 programs matching keyword "reflection of sound waves"


AfterSchool Activities:  Bee Hummer Activity: What's going on (Clip)
Running Time:
00:01:27
The science behind this simple musical instrument, including the concepts of sound, vibration, and amplification.

Project: AfterSchool Activities | Browse All

Date: January 14, 2008
Format: Demonstration / Activity
Category: Everyday Science
Subject(s): General Science

Keywords: sound, sound toy, music, musical instrument, vibration, ear, hear, buzz, afterschool

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AfterSchool Activities:  Cuica Activity: Introduction (Clip)
Running Time:
00:00:39
An introduction to the cuica (pronounced KWEE-kah), a small friction drum used in Brazil's Carnival parade.

Project: AfterSchool Activities | Browse All

Date: January 14, 2008
Format: Demonstration / Activity
Category: Everyday Science
Subject(s): General Science

Keywords: sound activity, sound experiment, music, musical instrument, sound, hearing, ear, brazil, percussion, carnival, friction, resonance, echo, afterschool

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AfterSchool Activities:  Cuica Activity: Step-by-Step Demonstration (Clip)
Running Time:
00:06:39
A detailed demonstration of how to make this small friction drum, including a discussion of materials needed and how different kinds of materials make for cuicas that produce different sounds.

Project: AfterSchool Activities | Browse All

Date: January 14, 2008
Format: Demonstration / Activity
Category: Everyday Science
Subject(s): General Science

Keywords: sound activity, sound experiment, music, musical instrument, sound, hearing, ear, brazil, percussion, carnival, friction, resonance, echo, afterschool

Links: Download activity instructions
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AfterSchool Activities:  Cuica Activity: What's Going On (Clip)
Running Time:
00:01:30
The science behind this musical instrument, including the concepts of sound, vibration, resonance, and amplification.

Project: AfterSchool Activities | Browse All

Date: January 14, 2008
Format: Demonstration / Activity
Category: Everyday Science
Subject(s): General Science

Keywords: sound activity, sound experiment, music, musical instrument, sound, hearing, ear, brazil, percussion, carnival, friction, resonance, echo

Links: Download activity instructions
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AfterSchool Activities:  Sound Sandwich Activity: Introduction (Clip)
Running Time:
00:00:24
An introduction to a crowd-pleasing noisemaker called a sound sandwich, which you can adjust to raise or lower its pitch.

Project: AfterSchool Activities | Browse All

Date: January 14, 2008
Format: Demonstration / Activity
Category: Everyday Science
Subject(s): General Science

Keywords: sound, sound activity, sound experiment, vibration, hearing, ear, pitch, music, afterschool

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AfterSchool Activities:  Sound Sandwich Activity: Step-by-Step Demonstration (Clip)
Running Time:
00:02:32
A detailed demonstration of how to make this primitive wind instrument using little more than a straw, two craft sticks, and some rubber bands.

Project: AfterSchool Activities | Browse All

Date: January 14, 2008
Format: Demonstration / Activity
Category: Everyday Science
Subject(s): General Science

Keywords: sound, sound activity, sound experiment, vibration, hearing, ear, pitch, music, afterschool

Links: Download activity instructions
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AfterSchool Activities:  Sound Sandwich Activity: What's Going On (Clip)
Running Time:
00:01:48
The science behind this instrument, including a discussion of how vibration produces sound, and how long, massive objects vibrate slowly and produce a low-pitched sound, while shorter, less massive objects vibrate quickly and produce a high-pitched sound.

Project: AfterSchool Activities | Browse All

Date: January 14, 2008
Format: Demonstration / Activity
Category: Everyday Science
Subject(s): General Science

Keywords: sound, sound activity, sound experiment, vibration, hearing, ear, pitch, music, afterschool

Links: Download activity instructions
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Iron Science Teacher:  Mirrors (Webcast)
Running Time:
00:41:18
In this zany competition teachers will have ten minutes to create a science activity from a special secret ingredient. This week: mirrors!

Project: Iron Science Teacher | Browse All

Date: August 11, 2006
Format: Demonstration / Activity
Category: Everyday Science
Subject(s): Physics, General Science

Keywords: teachers, experiments, demonstrations, contest, mirrors, parabolic mirrors, protractors, angle of incidence, angle of reflection, 90 degree angles


Real: 225K  
Iron Science Teacher:  Milk (Webcast)
Running Time:
1:11:41
Watch as the best teachers on the planet battle it out for the title of Iron Science Teacher. In this zany competition teachers will have ten minutes to create a science activity. This week’s “secret” ingredient: Milk!

Project: Iron Science Teacher | Browse All

Date: July 15, 2005
Format: Demonstration / Activity
Category: Everyday Science
Subject(s): General Science, Physics

Keywords: acids and bases, curdling milk, making cheese, surface tension, convection currents, blue sky activity, scattering, total internal reflection, ice cream, comets, make a comet activity


Real: 225K  
Origins: Astrobiology:  What About Intelligent Life? (Webcast)
Running Time:
00:46:27
SETI is a scientific effort seeking to determine if there is intelligent life outside Earth. We were at Aricebo Radio Observatory in March 2003 when scientists listened to the most promising transmissions from UC Berkeley’s SETI@home search. Join the Exploratorium’s Ron Hipschman and special guest Dan Werthimer, chief scientist and principal investigator for the SETI Institute’s efforts, including Arecibo Observatory’s search of artificial radio signals coming from other stars.

Project: Origins: Astrobiology: The Search for Life | Browse All

Date: November 21, 2003
Format: Interview
Category: Science in Action
Subject(s): Astronomy/Space Science

Keywords: astrobiology, seti, search for extraterrestrial intelligences, interstellar communication, radio waves, drake equation, planet detection, planetary detection, primordial soup, designing interstellar messages, radio telescope, sky surveys, astropulse,


Real: 256K  
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