To determine which statement is true with respect to the investigation, let's first identify and categorize the properties listed in the table.
Here are the properties and their categorization:
1. Color - Physical Property
2. Density - Physical Property
3. Volume of sample - Physical Property
4. Melting point - Physical Property
5. Reaction with air - Chemical Property
6. Electrical conductivity - Physical Property
Next, we will count the number of each type of property:
- Physical properties: 5 (color, density, volume of sample, melting point, electrical conductivity)
- Chemical properties: 1 (reaction with air)
With this categorization, we can now evaluate which statement is true:
1. "The student investigated only the physical properties of lead." This statement is false because there is one chemical property investigated.
2. "The student investigated only the chemical properties of lead." This statement is false because there are multiple physical properties investigated.
3. "The student investigated more physical properties than chemical properties of lead." This statement is true because there are 5 physical properties and only 1 chemical property.
4. "The student investigated more chemical properties than physical properties of lead." This statement is false as there are fewer chemical properties than physical properties.
Thus, the correct statement is:
The student investigated more physical properties than chemical properties of lead.
