Someone me.

thermal energy and chemical change lab report

in this section, describe three design ideas you have for your train. list at least one pro (a positive) and one con (a negative) for each design option.

This image is an example of a(n) a) atom. b) compound. c) mixture. d) molecule.

Two metal blocks that have slightly different temperatures are placed next to one another. after five minutes, they both have lower but equal temperatures. according to the law of conservation of energy, what  most likelyhappened? energy was created inside the blocks.energy was destroyed inside the blocks.energy was absorbed into the blocks from outside the system.energy was transferred from the warmer block to the cooler block.

Scientists often have to deal with numbers that are either very large or very small. for example, the radius of the sun is approximately 696,000 kilometers, while bacterial cells are as small as 1.9 × 10-4 millimeters. express each number in an alternate form.