List four reasons why scientists perform experiments. Edit: this is for scientific research not chemistry, but they don't have that as a subject on here.

If a substance is not at its melting or boiling point, as the heat content of a sample of matter increases, its temperature increases the number of intermolecular bonds decreases the space between particles increases the particles move faster

In pea plants, the allele for tallness (t) is dominant to the allele for shortness (t). in the cross between a tall pea plant and a short pea plant shown below, what is the probability that the resulting offspring will be tall? whats the percent

If anyone would be able to me out with these three questions it would be these are from the chem 2202 course.