Teacher Preparation Videos
Chemical Interactions

The FOSS Teacher Preparation Videos help you prepare to teach the FOSS modules. They include teacher guide information, safety precautions, set up procedures, and classroom footage. Click on the name of the video clip you wish to view from the list below. Select "Play All" to view the entire Teacher Preparation Video.

You can see a list of all available Teacher Preparations Videos or download transcripts of any videos.

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Select a chapter from the list below.
An Introduction to FOSS Middle School (2:16)
Assessment (4:57)
Chemical Interactions Course Introduction (1:53)
Teacher Guide Overview (6:14)
Multimedia Overview (4:17)
Safety Considerations (2:41)
Investigation 1 - Substances
Introduction (1:07)
Getting Ready for Part 1: Mystery Mixture (3:26)
Conducting Part 1: Mystery Mixture (3:14)
Getting Ready for Part 2: Mixing Substances (4:54)
Conducting Part 2: Mixing Substances (8:42)
Investigation 2 - Elements
Introduction (1:02)
Getting Ready for Part 1: Periodic Table (2:24)
Conducting Part 1: Periodic Table (2:00)
Getting Ready for Part 2: Elements in the World (2:08)
Conducting Part 2: Elements in the World (2:57)
Investigation 3 - Particles
Introduction (0:50)
Getting Ready for Part 1: Capture the Gas (3:18)
Conducting Part 1: Capture the Gas (5:59)
Getting Ready for Part 2: Air Is Matter (3:38)
Conducting Part 2: Air Is Matter (6:52)
Getting Ready for Part 3: Air as Particles (1:33)
Conducting Part 3: Air as Particles (3:17)
Investigation 4 - Kinetic Energy
Introduction (0:55)
Getting Ready for Part 1: Gas Expansion (3:36)
Conducting Part 1: Gas Expansion (3:43)
Getting Ready for Part 2: Liquid Expansion (5:23)
Conducting Part 2: Liquid Expansion (4:41)
Getting Ready for Part 3: Solid Expansion (2:41)
Conducting Part 3: Solid Expansion (1:34)
Investigation 5 - Energy Transfer
Introduction (0:55)
Getting Ready for Part 1: Mixing Hot and Cold (2:06)
Conducting Part 1: Mixing Hot and Cold (5:08)
Getting Ready for Part 2: Particle Collisions (1:26)
Conducting Part 2: Particle Collisions (4:15)
Getting Ready for Part 3: Heat (2:30)
Conducting Part 3: Heat (5:29)
Investigation 6 - Heat of Fusion
Introduction (0:56)
Getting Ready for Part 1: Heat of Fusion (3:38)
Conducting Part 1: Heat of Fusion (9:29)
Investigation 7 - Phase Change
Introduction (1:04)
Getting Ready for Part 1: Dissolve and Melt (3:12)
Conducting Part 1: Dissolve and Melt (3:30)
Getting Ready for Part 2: Melting Temperature (2:24)
Conducting Part 2: Melting Temperature (2:05)
Getting Ready for Part 3: More Heat (3:57)
Conducting Part 3: More Heat (2:40)
Getting Ready for Part 4: Freeze Water (3:30)
Conducting Part 4: Freeze Water (4:09)
Getting Ready for Part 5: Gas to Solid (1:51)
Conducting Part 5: Gas to Solid (4:15)
Investigation 8 - Solutions
Introduction (0:55)
Getting Ready for Part 1: Mixtures (3:13)
Conducting Part 1: Mixtures (5:41)
Getting Ready for Part 2: Saturation (1:43)
Conducting Part 2: Saturation (5:56)
Getting Ready for Part 3: Concentration (3:01)
Conducting Part 3: Concentration (4:23)
Investigation 9 - Reaction
Introduction (1:02)
Getting Ready for Part 1: Substance Models (2:08)
Conducting Part 1: Substance Models (4:32)
Getting Ready for Part 2: Limewater Reaction (8:04)
Conducting Part 2: Limewater Reaction (4:21)
Getting Ready for Part 3: Baking Soda and Acid (6:27)
Conducting Part 3: Baking Soda and Acid (4:37)
Getting Ready for Part 4: Antacid (1:48)
Conducting Part 4: Antacid (2:33)
Investigation 10 - More Reactions
Introduction (1:00)
Getting Ready for Part 1: Citric Acid and Baking Soda (2:31)
Conducting Part 1: Citric Acid and Baking Soda (2:52)
Getting Ready for Part 2: Rust (7:09)
Conducting Part 2: Rust (2:17)