Fill in the blanks with the word that best completes each statement
Scientists develop knowledge by making
about the natural world that may lead to a scientific
question
A scientific question may lead to an)
which can be tested.
The results of
can lead to changes in scientific knowledge.

Electric charge is what ? a. kinetic energy b. radiation c. discovery d. electricity

Which part of earth’s surface receives the most direct rays from the sun? a) equator b) ocean c) poles d) mountains

Which ocean zone has the most abundant primary producer and why a) the abyssopelagic zone ,du to the absence of light and cold water temperatureb) the bathypelagic zone, due to the absence of light and cold water temperaturec) the mesopelagic zone ,due to uts high light availability and warm water temperature d) the epipelagic zone,due to its high light availability and warm water temperature