Which of the following best describes how heat is transferred by conduction? a. Particles in warmer objects make particles in colder objects move faster.
b. Particles in colder objects make particles in warmer objects move slower.
c. Particles in warm and cold objects mix together and transfer energy.
d. Particles move from warmer objects to colder objects.

Oxygen and nutrients are moved through the body by the: a. circulatory system c. lymphatic system b. digestive system d. reproductive system

One form of energy can be another type of energy. a. created to form b. transformed into c. destroyed and then created to form

When can a theory be modified if a new type of technology allows for new observations that raise new questions? a-immediately, while the questions about the theory are being asked b-after new hypotheses related to the theory are tested in experiments c-only after the new observations disprove all parts of the theory d-while scientists begin to think about how the theory could improve