To explain how the world works, scientists occasionally have an idea that — upon further testing — turns out to be wrong. From rays that carry coldness instead of heat, to a neighboring star that causes regular mass extinctions on Earth,...

In this video Paul Andersen shows conceptual thinking in a mini-lesson on scale mechanisms within complex systems.

T
ERMS:
Cause and effect relationships - one event that gives rise to ano
ther event
Complex systems - a...

From "superhabitable planets" that can potentially sustain life longer than earth to rogue planets that don't even orbit a star, we’ve talked about some strange places that could host extraterrestrial life over the last few years. Here...

Hank teaches us why water is one of the most fascinating and important substances in the universe.

In this video Paul Andersen explains the vital role that water plays in the processes on the Earth's surface. Water has several unique properties including high heat capacity, transparency, polarity and the ability to change the...

Dive into the world of water, from the vast oceans that cover 71% of Earth's surface to the unique seas like the Mediterranean and the Dead Sea. Learn about the role of water as the "universal solvent" and the mysteries hidden in the...

In Water as a Natural Resource we are introduced to words such as habitat, ecosystem, watershed and estuary. Not only do kids learn that water exists everywhere on Earth, but that it is vital for life in plants, animals, and all other...

In Water as a Natural Resource we are introduced to words such as habitat, ecosystem, watershed and estuary. Not only do kids learn that water exists everywhere on Earth, but that it is vital for life in plants, animals, and all other...

In Water as a Natural Resource we are introduced to words such as habitat, ecosystem, watershed and estuary. Not only do kids learn that water exists everywhere on Earth, but that it is vital for life in plants, animals, and all other...

How do plants use water to live and grow? How does water help the human body? What food contains the highest amount of water? Properties Of Water, Part 3

In Water as a Natural Resource we are introduced to words such as habitat, ecosystem, watershed and estuary. Not only do kids learn that water exists everywhere on Earth, but that it is vital for life in plants, animals, and all other...

What research is being conducted currently? How does it work? If successful, how can it help society? What careers deal with science and water?<br/>
Properties Of Water, Part 5

What are the unique properties of water? What are the freezing and boiling points of water? Properties Of Water, Part 2

Why is desalinated water important? How can graphene help with desalination?<br/>
Properties Of Water, Part 4

What are the characteristics of water? Explain the water cycle?<br/>
Properties Of Water, Part 1

In Water as a Natural Resource we are introduced to words such as habitat, ecosystem, watershed and estuary. Not only do kids learn that water exists everywhere on Earth, but that it is vital for life in plants, animals, and all other...

In Water as a Natural Resource we are introduced to words such as habitat, ecosystem, watershed and estuary. Not only do kids learn that water exists everywhere on Earth, but that it is vital for life in plants, animals, and all other...