Since Alai is hitting each with a hammer, the physical property which he must be comparing on the two materials must be hardness. Solubility can be tested when you put them in a solvent. Odor can be tested with smell. Conductivity can be tested with electricity. Hardness can be tested with its resistance to the force that hits it.
Lamps heat up a coil inside a light bulb, TVs heat up tiny lamps behind liquid crystals to project a tiny image called a pixel
Answer:
Political Map. A political map shows the state and national boundaries of a place. ...
Explanation:
Answer:
18,01528
Explanation:
Lanthanide belongs to period 6, and actinides belongs to period 7