McGraw-Hill Science Return to Book List
Lightning
Grade 5
Science Magazine & World of Science
 
Matter, Topic 2: What Matter Is Made Of
It's ELEMENT-ary
Keyword: ELEMENTS

Did You Know...
None of the elements beyond element 92—uranium—last very long. Many have existed for only a brief fraction of a second in scientists' laboratories!

 

Chem4Kids: Elements

Chem4Kids makes chemistry fun. On this page, click your choice of element in the periodic table to learn more about that element. When you're finished, explore some of the other sections of the Chem4Kids site.

Questions

  1. In what three forms can phosphorus exist?

  2. What are the rows in a periodic table called? What are the columns in a periodic table called?

  3. What is an element called if it will not readily combine with any other element?

     

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Visual Periodic Table

Here is a very special Periodic Table of the elements. Click a square in the table, and up will come pictures and information about an element. Over 100 great elements to choose from!

Questions

  1. Name three places where you could find oxygen.

  2. Which element appears in between sodium and aluminum on the Periodic Table? How did this element get its name?

  3. Is fluorine a reactive or non-reactive element? Name one way that people use fluorine.

     

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People in Science: Ancient Epoch

Ancient Greece is famous for its great thinkers and philosophers including Aristotle, Plato, and Democritus. Click here to see what they had to say about the elements and other scientific topics.

Questions

  1. Name the elements that Aristotle thought the Earth was made of.

  2. Who first calculated Earth's circumference, which is the distance around the center? How did he do it?

  3. Who put forth the idea that everything in the universe was made up of tiny, indivisible particles, called atoms. What does the word atom mean?

     

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