5th Grade Investigating God's World Test 6
What is an engine?
a device that converts energy from natural sources into useful work
whale
a mammal that looks like a fish
geode
a rocklike object that looks like a mudball
nocturnal
active at night
nymph
an immature insect that looks just like the adult
carnivore
animal that eats meat
matter
anything that takes up space and has mass
gravity
attraction that exists between any pair of objects
silver
best conductor of electricity
What is kinetic energy?
energy of motion
What is atomic energy?
energy that is releases when atoms are either split apart or joined together
Moray eel
fish that looks like a snake
electricity
force that causes electrically charged objects to either attract or repel each other
friction
force that resists motion
mercury
is liquid at room temperature
Type of energy of a rolling bowling ball
kinetic
Type of energy of a running stream
kinetic
Type of energy of a swinging baseball bat
kinetic
rodents
largest group of mammals
sedimentary
limestone is an example of this kind of rock
herbivores
plant eaters
Type of energy of a book on a shelf
potential
Type of energy of a stretched rubber band
potential
Type of energy of water behind a dam
potential
coral polyps
reefs are made of these
What is work?
result of a force moving an object
shrimp
small crustacean; scavenger
What is potential energy?
stored energy
diffusion
tendency of gases to float away and spread themselves out thinly in their surroundings
mass
the amount of matter in an object
reflection
the bouncing back of light
wandering albatross
the largest flying bird
ruby
the rarest gemstone
graphite
type of mineral used to make pencils
igneous
type of pumice rock
steam
water as a gas
camouflage
when an animal blends in with its surroundings
migrating
when an animal moves from place to place with the changing seasons
transparent
when light can pass straight through an object
pinniped
wing-footed
luminous
objects that give off their own light
solid
A state of matter that has a definite shape and a definite volume
liquid
A state of matter that has no definite shape and flows from one place to another
force
A push or a pull
Boiling point of water in Fahrenheit
212
bivalve
A mollusk that has two shells held together by hinges and strong muscles.
refraction
Bending of light
freezing point
The temperature at which a liquid changes into a solid
boiling point
The temperature at which a liquid changes to a gas
melting point
The temperature at which a solid becomes a liquid
iron
man's most useful metal
uranium
metal used as a source for nuclear power
stonefish
most poisonous fish
opaque
object that does not allow light to pass through it