A duck’s feathers are covered with a natural oil that keeps the duck dry. This is a special feature ducks have that helps them A) feed their young B) adapt to their environment C) attract a mate D) search for food
Frogs lay eggs that develop into tadpoles and then into adult frogs. This sequence of changes is an example of how living things A) go through a life cycle B) form a food web C) act as a source of food D) affect other parts of the ecosystem
A mother hen clucks loudly when danger is near and her chicks quickly gather around her. Which sense helps the chicks receive this warning about danger from their mother? A) smell B) taste C) sight D) sound
A student reaches one hand into a bag filled with smooth objects. The student feels the objects but does not look into the bag. Which property of the objects can the student most likely identify? A) shape B) color C) ability to reflect light D) ability to conduct electricity
A girl signals her friend by shining a flashlight on a mirror. Her friend can see the signal because A) heat energy can be transferred from one object to another B) mechanical energy can be transferred from one object to another C) sound energy can be reflected from one object to another D) light energy can be reflected from one object to another
Which statement describes the general path the Sun takes as it appears to move across the sky for an observer in New York State? A) The Sun rises in the west and sets in the east. B) The Sun rises in the east and sets in the west. C) The Sun rises in the north and sets in the south. D) The Sun rises in the south and sets in the north.
Electricity traveling through a wire is an example of A) a force applied by a simple machine B) energy flowing through the water cycle C) Earth’s gravitational pull on an object D) energy being transferred from place to place
A dog opens it mouth and lets its tongue hang out. A human’s body produces sweat. These are two ways that organisms may adjust to A) cold temperatures B) hot temperatures C) a shortage of food D) a shortage of drinking water
Apple trees can live for many years, but bean plants usually live for only a few months. This statement suggests that A) different plants have different life spans B) plants depend on other plants C) plants produce many offspring D) season changes help plants grow
Which statement is an example of how humans have changed the natural environment? A) Wind and rain destroy wheat plants. B) The Sun’s energy helps a wheat plan grow C) A forest is cleared to make space to grow wheat. D) A wheat plant’s seeds are scattered by the wind.