Answer the questions based on the table.
1. Which materials changed their size and shape by cutting?
2. Which materials change their size and shape by bending?
3. Which materials changed their size and shape by hammering into flat thin sheets?
4. Which material shows that the metal was changed into fine wires?
5. What do you call the ability of metals to be hammered or pounded into flat thin sheets?
6. What do you call the property of metals to be drawn into fine wires?
7. How did the materials change their size and shape?
8. Was a new material formed when solid materials were bent, pressed, hammered, or cut?
9. How would you describe the changes that happened to the materials when bent, pressed, hammered, or cut?
10. What characteristics of solid materials were evident in this activity?
Do the following: Look for the real materials found in the pictures. Identify the materials in the pictures: metal wire, potholder, tin foil, rock, aluminum ladle, tin can; paper; electric wire, rubber hose, and plastic bottles. You may use different tools such as cutters, scissors, pliers, and a hammer to change the materials. You must be careful in handling the different tools. You may ask an adult to assist you in handling the tools. Group the materials according to property as hard or soft metal or nonmetal. List your grouping in your notebook. Find out how the materials change in size and shape without producing new materials. Complete the table below. Write your answer on a separate sheet of paper.
Name of Materials
Ways of Changing Size and Shape of the materials (Bending, Pressing, Hammering, Cutting)