Chemistry

Entries from December 2017




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"I do not fear computers. I fear the lack of them."

Physics

What is the mistral?»
            This is the name given to a wind which blows in ...
How are rocks formed?»
          Sedimentary rocks are formed from the sediment, or ...
Why do clouds have different shapes?»
               Clouds vary in shape according to ...
When does sheet lightning occur?»
               Sheet lightning usually occurs ...
What is twilight? »
          Twilight is the faint light which appears a little ...

Chemistry

How are rocks formed?»
          Sedimentary rocks are formed from the sediment, or ...
Why do river deltas form? »
               A river winding its way down to the ...
Why does smoke go up the chimney?»
               Smoke will rise up the chimney ...
What is fire?»
           Fire is the outward sign that oxygen is combining ...
What is dry ice?»
               Dry ice is frozen carbon dioxide. ...

Biology

What makes the snow leopard an endangered animal? »
               A snow leopard is a large cat that ...
Why is the sei whale an endangered animal? »
            The sei whale is one of the fastest whales in the ...
Why the Grevy’s zebra is considered an endangered animal?»
            The Grevy’s zebra is an important member of the ...
What makes the giant otter rare? »
               The giant otter is a carnivorous ...
Why the Rothschild’s giraffe is considered an endangered animal? »
            The Rothschild’s giraffe is a subspecies of ...