Earth and Matter
In this matter instructional activity, students review the Earth's layers, write balanced equations, and compare the properties of different elements. This instructional activity has 29 fill in the blank questions.
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Dark Matter NASA Conference
Young scholars calculate the escape velocity of planets in our solar system and use that knowledge to calculate the escape velocity for NGC 2300 group. They then suggest reasons for the escape velocity to be higher than possible given...
9th - 12th Science CCSS: Adaptable
The Sun and The Earth: Crash Course Big History #3
Amaze your class with the fact that more than 1,000 confirmed planets exist. The video explains the formation and development of planets, especially the earth. It covers the solar nebula, birth of the sun, and the development of the...
15 mins 9th - Higher Ed Science CCSS: Adaptable
How We Know About the Earth's Core
The big question is, how do we know about the composition of the earth's core? Sal explains that at 105 degrees from the source point of an earthquake the phenomena of p wave shadow zone leads us to conclude that the waves are traveling...
6 mins 8th - 11th Science
Why the Evolutionary Epic Matters: Crash Course Big History #203
Imagine a world where the only animals roaming the earth are domesticated. One day, we might not have to imagine the scenario of no wild animals—and that day approaches faster than predicted. A video explains the evolution from...
12 mins 9th - Higher Ed Science CCSS: Adaptable
New Review Why Star Stuff Matters: Crash Course Big History #202
Carbon makes all life on Earth possible, not to mention most technology and progress. The 12th video in a 16-part series explains the significance of being made of star stuff. From the formation of chemical elements to the rise in...
11 mins 9th - Higher Ed Science CCSS: Adaptable
Dark Matter: The Matter We Can't See
It's looking like the dark side is bigger than we thought! Physicists speculate that perhaps 96% of the universe consists of invisible dark matter and dark energy, while only 4% is what we can view with the aided eye. This flabbergasting...
6 mins 7th - 12th Science CCSS: Adaptable