AL Book 1 · 3 The Stone Age The Stone Age had three parts. The Þ rst was the Old Stone Age, or...
Transcript of AL Book 1 · 3 The Stone Age The Stone Age had three parts. The Þ rst was the Old Stone Age, or...
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ISBN 978-0-15-362472-8ISBN 0-15-362472-8
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ISBN 978-0-15-362498-8
ISBN 0-15-362498-1
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by Eileen Joyce
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CXENL09ALR6X_AL07.indd 3 1/15/10 3:11:47 PMFirst Pass
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CXENL09ALR6X_AL07.indd 4 1/18/10 5:15:10 PMFirst Pass
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CXENL09ALR6X_AL07.indd 7 1/15/10 7:13:16 PMFirst Pass
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If you could take a vacation in one of the time periods discussed in this
book, which age would you visit? Plan your itinerary for the age you
have chosen.
In what ways can the current century be considered a stone age?
As you go through a typical day, make a list of the types of stones or
products made from stones that you have contact with. Discuss your
list with your classmates. Do they mention stones or products that you
didn’t think of? What would you add to your list?
Write a paragraph that tells why you think a space
elevator is or is not a good idea.
Lodestones are rocks that are natural magnets. They are made
of a type of iron oxide that aligns itself in a north-to-south direction. People
in ancient times knew that they could use lodestones to magnetize pieces of
metal. You can demonstrate this process. With an adult, magnetize a sewing
needle by slowly stroking it in one direction on a magnet. Then use the needle
to attract other sewing needles.
With an adult family member, repeat the hands-on
activity. Then fill a cup with water, and very carefully place the needle on
top of the water so that it floats. You may need to try this a few times in
order to get the needle to float. Observe how the needle aligns itself in a
north-to-south direction.
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ISBN 978-0-15-362498-8ISBN 0-15-362498-1
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