a trace of a plant or animal found in sedimentary rock
What is fossil
300
the downward push of the air in the atmosphere
What is air pressure
300
a change of form from a larva into an adult
What is metamorphosis
300
a circuit whose path is broken
What is incomplete circuit
400
an object that attracts metals such as iron and steel
What is magnet
400
topsoil, subsoil, bedrock
What is 3 layers of soil
400
an instrument used to measure humidity
What is hygrometer
400
egg changes to larva (worm-like), then the larva becomes a pupa (larva in a cocoon), then the pupa becomes a fully developed adult insect (example- butterfly)
What is complete metamorphosis
400
an object that changes chemical energy into electricity
What is battery
500
a battery made from a zinc case, carbon rod, and chemical paste (example- flashlight battery
What is dry cell batter
500
A kind of rock formed when other kinds of rocks are changed by great heat and pressure
What is metamorphic rock
500
an are of warm rising air
What is low pressure area
500
eggs hatch into a nymph (small adult), molts (sheds skeleton), grows in an adult insect
What is incomplete metamorphosis
500
a battery made up of layers of led, water and acid (example- car battery)