C 1. 3. 4. 1. True or false. Read the following statements and choose whether it is true or false. A physical property is a characteristic that can be determined without changing the chemical iden of a substance. 2. Plastics are flexible, durable and resilient that's why they are not good materials for storage conta The electrical conductivity is the ability of metals to conduct heat and electricity. Chemical properties are observed indirectly and become evident only when the material und chemical reaction or chemical change. 5. Durability is the ability of the materials to withstand wear, pressure or damage. 6. A change in size or shape is a physical change. 7. A chemical change means a new substance with new properties was formed. 8. An example of chemical change is when water freezes. 9. When milk turns sour, this is a physical change because a change in odor does not india change. 10. When citric acid and baking soda mix, carbon dioxide is produced and the temperatur must be a chemical change.
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C 1. 3. 4. 1. True or false. Read the following statements and choose whether it is true or false. A physical
Answer:
1.true
2.true
5.true
6.true
7.true
8.false
9.true
10.true