Curated OER
Dry Ice Fun for a Spooky Halloween
Create a cauldron of bubbling fun with this Halloween-themed demonstration idea. Using dry ice, Steve Spangler creates a crystal ball. If you compare the sublimation of dry ice to the melting of water ice, it is a wonderful way to...
Steve Spangler Science
Dry Ice Boo Bubbles
A rather simple, but impressive activity is displayed in this Steve Spangler Science video. Dry ice, solid carbon dioxide, is used to create gas-filled bubbles. You can perform this as a demonstration when teaching chemistry classes...
Steve Spangler Science
Dry Ice Floating Bubble - Sick Science! #058
In this episode of "Steve Spangler Science" videos, the gas produced by the sublimation of carbon dioxide dry ice creates a nice, fluffy cushion in a bowl of water. Since it is less dense than a soap bubble and cool enough to keep it...
Steve Spangler Science
Dry Ice Crystal Ball Bubble - Sick Science! #112
Dry ice, turkey basters, crystal bubbles and dish soap are used to make fascinating things called crystal bubbles. The tasks demonstrated here would be ideal for groups of two or three students to work on together.
Curated OER
Human PreHistory 101 Part 2: Weathering the Storm
The last ice age occurred around 20,000 years ago. What were the conditions like? How did our ancestors survive them? These questions are briefly explored in a three-minute video clip. See how in a relatively short time, humans spread...
Steve Spangler Science
Acid Breath - Cool Science Experiment
An acid/base indicator that's made of blended red cabbage and water is used to demonstrate the various reactions that an acid/base solution goes through when some carbon dioxide gas is added. The best way to add the carbon dioxide is to...
Curated OER
Red Cabbage Chemistry
An acid/base indicator that's made of blended red cabbage and water is used to demonstrate the various reactions that an acid/base solution goes through when some carbon dioxide gas is added. The best way to add the carbon dioxide is to...
Howard Hughes Medical Institute
Stickleback Film with Quiz: Evolving Switches, Evolving Bodies
The pelvic bone's connected to the...nothing in the stickleback fish, because it doesn't have one. Young biologists watch a video about the evolution of the stickleback fish living in Alaskan lakes. It turns out that they lost their...
Crash Course
How Seawater Sabotages Ships: Crash Course Engineering #43
See how the seas wreak havoc on ships. The 43rd video in the Crash Course Engineering playlist focuses on marine engineering and how ships need to protect against corrosion from seawater and from marine life. It also looks at ways of...
MinuteEarth
How Do Trees Survive Winter?
Explore trees' strategies for surviving winters in cold climates. The first trees were built for tropical climates. As they migrated to colder climates, they adapted the capability to survive the harsher weather. The video lesson...
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