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Activity Help G2a Chemical weathering Use this sheet to record your observations and answer the questions. Type of rock tested with acid Before During After limestone sandstone granite chalk 1 It is possible to divide the rocks into two groups based on how they react. Use the table below for your answer. Decide on the headings for the two groups and then write down which rocks go in which group. Group 1 Group 2 2 Compare how limestone and chalk react. Which rock will be most affected by chemical weathering? 3 Compare limestone and sandstone. What are the advantages and disadvantages of using these two rocks for building materials for houses? Rock Advantages Disadvantages limestone sandstone 4 Marble is made of the same minerals as limestone and chalk. Would you expect a marble statue to be affected by acid rain? because . © Harcourt Education Ltd 2004 Catalyst 2 This worksheet may have been altered from the original on the CD-ROM. Sheet 1 of 1