EXPLO.TV - Webcasts, Video Clips, and Podcasts from the Exploratorium

Science in the City: Black Sand (Clip)

Running Time:
00:03:53

Join Exploratorium educator Ken Finn as he unlocks the mystery behind the black sand (a.k.a. magnetite) at Ocean Beach. This piece explores the origin of magnetite in the Sierra Nevada mountains, its journey down the Sacramento and San Joaquin rivers to the Bay, and the interesting physical properties of this mineral, plus some fun things you can do with it.

Project: Science in the City | Browse All

Date: August 9, 2011
Format: Expedition
Category: Everyday Science
Subject(s): General Science

Keywords: black sand, beach, magnitite, magnet, mineral, magnetic lines, force fields, exploratorium, ocean beach, exhibit

Science Teaching Tips: Marshmallow Puff Tube (Podcast)

Running Time:
00:09:29

Newton’s laws were never so tasty. Exploratorium staff educator Don Rathjen demonstrates concepts about force using a file folder and a marshmallow.

Project: Teacher Institute Science Teaching Tips | Browse All

Date: June 3, 2009
Format: Demonstration / Activity
Category: Everyday Science
Subject(s): Physics

Keywords: newton, force, marshmallow

Links:	Marshmallow Puff Tube activity
	More of Don Rathjen’s activities

Alternative content

download MP3 (2.8 MB)

AfterSchool Activities: Stripped-Down Motor Activity: Introduction (Clip)

Running Time:
00:00:40

An introduction to the stripped-down motor, a simple and easy-to-make version of the electric motors found in toys, tools, and appliances.

Project: AfterSchool Activities | Browse All

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

Keywords: electricity, magnet, magnetism, poles, force, battery, coil, circuit, afterschool

Links:	Download activity instructions
	Going further
	Download concept map

AfterSchool Activities: Stripped-Down Motor Activity: Materials (Clip)

Running Time:
00:01:16

A detailed description of the simple materials needed to make a stripped-down motor.

Project: AfterSchool Activities | Browse All

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

Keywords: electricity, magnet, magnetism, poles, force, battery, coil, circuit, afterschool

Links:	Download activity instructions
	Going further
	Download concept map

AfterSchool Activities: Stripped-Down Motor Activity: Building the Stand (Clip)

Running Time:
00:02:48

A step-by-step demonstration of how to make the stand for the stripped-down motor.

Project: AfterSchool Activities | Browse All

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

Keywords: electricity, magnet, magnetism, poles, force, battery, coil, circuit, afterschool

Links:	Download activity instructions
	Going further
	Download concept map

AfterSchool Activities: Stripped-Down Motor Activity: Making the Coil (Clip)

Running Time:
00:05:16

A step-by-step demonstration of how to make the coil for the stripped-down motor.

Project: AfterSchool Activities | Browse All

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

Keywords: electricity, magnet, magnetism, poles, force, battery, coil, circuit, afterschool

Links:	Download activity instructions
	Going further
	Download concept map

AfterSchool Activities: Stripped-Down Motor Activity: More Science (Clip)

Running Time:
00:01:41

How the stripped-down motor works, including a discussion of how electricity and magnetism combine to drive the machine.

Project: AfterSchool Activities | Browse All

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

Keywords: electricity, magnet, magnetism, poles, force, battery, coil, circuit, afterschool

Links:	Download activity instructions
	Going further
	Download concept map

AfterSchool Activities: Stripped-Down Motor Activity: Pointers (Clip)

Running Time:
00:01:26

Troubleshooting tips for making sure your stripped-down motor works well.

Project: AfterSchool Activities | Browse All

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

Keywords: electricity, magnet, magnetism, poles, force, battery, coil, circuit, afterschool

Links:	Download activity instructions
	Going further
	Download concept map

AfterSchool Activities: Stripped-Down Motor Activity: What's Going On (Clip)

Running Time:
00:01:29

A more detailed explanation of how the stripped-down motor works.

Project: AfterSchool Activities | Browse All

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

Keywords: electricity, magnet, magnetism, poles, force, battery, coil, circuit, afterschool

Links:	Download activity instructions
	Going further
	Download concept map

Iron Science Teacher: Carbohydrates (Webcast)

Running Time:
1:01:08

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- carbohydrates!

Project: Iron Science Teacher | Browse All

Date: July 2, 2004
Format: Demonstration / Activity
Category: Everyday Science
Subject(s): General Science

Keywords: teachers, experiments, demos, carbohydrates, human digestive system, air pressure, ballistics, force and motion, peeps science, science of peeps, model of the atmoshpere on mars, model of the atmoshpere on venus,

Real: 225K


		Streaming Technology provided by: Digital Rapids	Webcasts made possible through the generosity of the Gordon and Betty Moore Foundation, The Jim Clark Endowment for Internet Education, the McBean Family Foundation,.and the Corporation for Educational Networks Initiatives in California (CENIC).