Help! Please and thank you

Describe the difference between a. a hypothesis and a theory and b. an observation and an experiment.

Asample of air with a volume of 2.20m3 at a pressure of 105 kpa and a temperature of 30c is cooled to 10c and the pressure is reduced to 75.0 kpa. what is the new volume? 6.9 1.34 2.56 43.0 2.88

Take a look at this dandelion. the yellow flower on the right is pollinated and the seeds on the left are transported by