WGU C451 Integrated Natural ScienceQuick PassUpdate 2024

What must be true about a scientific hypothesis? - Hypothesis must be falsifiablet What is important for the formation of scientific hypotheses and the advancement of scientific knowledge? - Creativity and cooperation What describes a theory? - A group of well tested hypotheses that provide evidence to support explainations for scientific phenomena. What is the purpose of the scientific method? - To provide a systematic way for obtaining evidence to support or refute a hypothesis. Describe a scientific hypothesis. - Describe a scientific hypothesis. - It is a postulate that must be testable. at is the benefit of using a systems approach when studying biology? - systems approach focuses on how component parts interact and can predict how a change in one component affects whole system. Name 3 topics that are included in a study of physics. - Motion ,sound ,energy How does a study of science differ from a study of religion? - o Religion is based faith, beliefs, and spirituality whereas science depends on evidence generated t the experimental scientific method. Which units are used to measure electricity? - Ohms , millivolts , amperes What is the advantage of using a lever to lift a boulder? - The The lever allows a smaller input force to be exerted over a a longer distance to make it easler to move the boulder. How can creativity be helpful to scientists? - It helps in generating new ideas and new hypotheses to test. Describe a fundamental scientific term - A fact is something that has been observed or experienced by many observers and agreed to be true. What scientific methodologies areused to understand sclentific phenomena? - Field studies, experimentation, building models A student working on a controlled experiment desires to test the effect of water pH on tomato plant size. Which of following factors should be controlled? - amount of soil, sun exposure, amount of water Which of the following studies follows a systems approach for biology? - Analyzing how the concentration of ions in cardiac celils affects the electrical impulse in the heart Which of these would be an example of a systems approach studying forest ecosystem? - studying how insects in the forest help pollinate the plants Which topics are studied in the Earth science category of the Natural Sclences? - Plate tectonics, acid rain, minerals. What is the purpose of science? - To explain the causes of natural phenomenon. What could be measured using micrometers? - plant cell nuclei length and mitochondria width Give an example of the mechanical advantage of simple machines? - A turn of an axle to move a wheel provides a mechanical advantage by decreasing the input force while increasing the distance. How does the law of universal gravitation differ from Coulomb's law of electrical forces? - Gravitational force depends on mass where