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Worksheetsscience page 4
Total questions: 2
Worksheet time: 60secs
Name
Class
Date
1.
Alfred Wegener proposed that the continents were once joined together, but Earth's moving crust separated them. Looking at how the shapes of the continents can fit together provides evidence for his hypothesis. Write the letters of two of the maps in the boxes to show how a pair of continents could be used to support his theory.
a)
Africa
b)
South America
c)
Australia
d)
India
2.
The Mid-Atlantic Ridge is a 16,000-kilometer mountain chain that travels north to south along the Atlantic Ocean sea floor. It is estimated that it is spreading at a rate of 2-5 cm a year. Based on the evidence, write one letter in each blank to correctly complete the explanation for how the Atlantic Ocean will change over time.
a)
millions
b)
continue
c)
larger
d)
thousands
e)
hundreds
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