A tool might be made of an alloy because the alloy .

is softer

resists rust

can bend easily

occurs naturally

What can be done to make a solid solute dissolve faster in a liquid solvent?

The independent variable in an experiment will be the variable that you o a) change ob) hold constant ng c) observe for changes

Which of the following has expanded our knowledge of the universe beyond our solar system the most? a. manned space travel b. the hubble space telescope c. the pioneer and voyager missions d. the international space station