NOVA Beyond the Elements: Reactions (Self-Grading Video Guide)

NOVA - Beyond the Elements is a PBS program released over a three week period in February 2021. These programs are chock-full of practical application of chemistry in today's world. Video guides for these programs are available on this TpT page in a variety of formats as listed and linked below. Printable version answer keys match google form answers. This allows for flexible pacing and quick answer entry into the google form.

Program #1 - Reactions

1. Self-Grading Google Form for $1.50 (current product)

2. Printable Version for $1.50

3. Bundle of above two products for $2.00

Program #2 - Indestructible

4. Self-Grading Google Form for $1.50

5. Printable Version for $1.50

6. Bundle of above two products for $2.00

Program #3 - Life

7. Self-Grading Google Form for $1.50

8. Printable Version for $1.50

9. Bundle of above two products for $2.00

Three Movie Guide Bundles

10. Self-Grading Forms for $4.00

11. Printable Versions for $4.00

12. Bundle of all versions for $5.00

This self-grading google form is a 47 question video guide to go along with the NOVA video program "Beyond the Elements: Reactions" presented by PBS on February 3, 2021. A link to the video location is in the google form. There are 47 multiple choice questions that can easily be self graded when posting to google classroom. The form is broken up into sections that go along with the video with time stamps for each section. See the preview below. Questions are answered in order of appearance in the video.

Topics included in this presentation:

Fire - This segment presents how chemical reactions in fire are occurring at the surface of the wood because the compounds within are reacting with atmospheric O₂. It touches upon the importance of oxygen in combustion: including a demonstration how a burning piece of bacon along with pressurized oxygen gets hot enough to cut through metal.

Cement - This segment explains how cement is created from the crushing of limestone and other materials and the chemical reactions that occur in the process. Touches upon both ionic and covalent bonding in Calcium Carbonate.

Haber-Bosch Process - This segment describes how the first synthetic fertilizers were made from the splitting of atmospheric N₂. Historical background is quite interesting.

Explosives - This segment describes how important the element nitrogen is within explosive compounds. It describes how energy is released when the nitrogen atoms separate from each other within the compound, are released to form N₂ when the compound decomposes. The concept of activation energy is included.

Chili Peppers - This segment discusses the biological interactions of the capsaicin molecule with heat receptors in the body.

Venom - This segment discusses how the venom from a snail is a complicated concoction of approximately 200 different proteins that target specific receptors in the body. The possible use of these toxins for medicinal purposes is also discussed.