Water always flows down a water slide. the harder a ball is hit, the faster it will travel. small birds use less energy to fly as fast as big birds. the statements above are examples of a) hypotheses. b) scientific laws. c) unproven theories. d) research problems.

positive particles in the nucleus are attracted to shared electrons, so the atoms stay close together.

b.

a researcher conducts an experiment on the secretion of a particular hormone in mice. scientists inject mice with a substance that stimulates the production of the hormone. the scientists then test the levels of hormones produced by the mice. the tool used to measure the hormones consistently detects the levels at 10 points lower than the actual hormone levels in the mice. this tool makes measurements, but the measurements aren't .

explanation:

no u

you can have just about every answer you can think of