The various types of symbosis include: 1  parasitism-one species (parasite) benefits more than the other species (host). 2  commensalism-one species benefits while a second species is neither helped nor injured. 3  mutualism-both species benefit from the interaction.he various types of symbosis include: 1  parasitism-one species (parasite) benefits more than the other species (host). 2  commensalism-one species benefits while a second species is neither helped nor injured. 3  mutualism-both species benefit from the interaction.
Many different types of energy can be converted into heat energy. Light, electrical, mechanical, chemical, nuclear, sound and thermal energy itself can each cause a substance to heat up by increasing the speed of its molecules.
LESSON OBJECTIVES. Students will: Discuss the idea that as mechanical energy was converted into electrical energy at the power plant, electric energy is now to be converted back to mechanical energy by a motor. Make some simple drawings of how magnets work in the operation of a motor.