A balloon may stick to the wall after you rub it on hair or wool because of static electricity. Ms. Black's class blew up three different sizes of balloons. They rubbed each balloon with a wool mitten for five strokes. Then they tested if the balloon would stick to the wall. What is the variable, or the factor that changes, in the experiment?

Select the correct answer.which scenario describes unethical lab behavior? a.danny stores the chemicals required for his experiment in flasks and beakers.b. anna publishes the results of her experiment on the growth rate of saplings.c. jason repeatedly runs an experiment until he gets the results he desires.d. mia records her observations of an experiment precisely and accurately.resetnext

What volume of a 0.25 m solution can be made using 0.55 moles of ca(oh)2

Which would happen if more forests were cut down? a. the nitrogen cycle would be stopped b. nitrogen would be fixed by bacteria more quickly c. the amount of co2 in the atmosphere would increase d. fossil fuels would build up in the soil c the amount of co2 in the atmosphere would increase