grade 6 science Quiz

Question Number 1 Which is the main organ of the excretory system A. liver B. tongue C. ear D. kidney E. eyes Question Number 2 What vibrates first when sound goes into the ear A. kidney B. retina C. liver D. eardrum E. ossicles Question Number 3 What is a force A. a push,pull or twist B. the ability to do work C. the removal of waste from the body D. a picture E. an inclined plane Question Number 4 A complex machine contains: A. shells B. simple machines C. a coin D. wheels E. wood Question Number 5 What opposes motion A. force B. weight C. friction D. noise E. science Question Number 6 what is intensity? A. the loudness of a sound B. the softness of a sound C. the removal of waste from the body D. the highness of a sound E. music Question Number 7 Which organ in the eyes sends messages to the brain for interpretation A. auditory nerves B. receptor cells C. blind spot D. optic nerves E. sensory cells Question Number 8 What part of the eyes are sensitive to light A. lens B. rods and cones C. pupil D. cochlea E. cornea Question Number 9 What is the sense organ of taste? A. tongue B. ear C. mouth D. skin E. eyes Question Number 10 Aids is caused by : A. bacteria B. chlorine C. excretion D. virus E. playing