Test 6 Semester Exam Flashcards

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1
Q

the metal that is the best conductor of electricity

A

silver

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2
Q

man’s most useful metal

A

iron

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3
Q

metal that is liquid at room temperature

A

mercury

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4
Q

metal used as a source for nuclear power

A

uranium

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5
Q

pumice is what kind of rock

A

igneous rock

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6
Q

limestone is what kind of rock

A

sedimentary

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7
Q

mineral used to make pencils

A

graphite

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8
Q

the rarest gemstone

A

ruby

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9
Q

rocklike object that looks like a mudball

A

geode

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10
Q

force that resists motion

A

friction

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11
Q

attraction that exists between any pair of objects

A

gravity

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12
Q

force that causes electrically charged objects to either attract or repel each other

A

electricity

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13
Q

push or pull

A

force

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14
Q

amount of matter in an object

A

mass

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15
Q

an animal blending in with its surroundings is an example of

A

camouflage

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16
Q

an immature insect that looks just like the adult

A

nymph

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17
Q

an animal moving from place to place with the changing seasons is an example of

A

migrating

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18
Q

an animal that is active at night

A

nocturnal

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19
Q

an animal that eats mostly meat

A

carnivore

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20
Q

the largest group of mammals

A

rodents

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21
Q

all rodents are plant-eaters, which makes them

A

herbivores

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22
Q

an object that does not allow light to pass through

A

opaque

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23
Q

if light can pass straight through an object, that object is

A

transparent

24
Q

an object that makes its own light

A

luminous

25
Q

the bouncing back of light

A

reflection

26
Q

the bending of light

A

refraction

27
Q

everything that takes up space and has mass

A

matter

28
Q

the state of matter that has a definite shape

A

solid

29
Q

the state of matter that has no definite shape and flows from one place to another

A

liquid

30
Q

the tendency of gases to float away and spread themselves out thinly in their surroundings

A

diffusion

31
Q

the point at which a substance changes from a liquid to a solid state

A

freezing point

32
Q

the point at which a solid changes into a liquid is called

A

melting point

33
Q

the point at which a substance changes from a liquid to gas is called

A

boiling point

34
Q

the boiling point of water

A

212 degrees F

35
Q

water as a gas

A

steam

36
Q

kinetic or potential energy: a book on a shelf

A

potential

37
Q

kinetic or potential energy: a rolling bowling ball

A

kinetic

38
Q

kinetic or potential energy: a running stream

A

kinetic

39
Q

kinetic or potential energy: a stretched rubber band

A

potential

40
Q

kinetic or potential energy: water behind a dam

A

potential

41
Q

kinetic or potential energy: a swinging baseball bat

A

kinetic

42
Q

the energy of motion

A

kinetic energy

43
Q

the result of a force moving an object

A

work

44
Q

the energy that is released when atoms are either split apart or joined together

A

atomic energy

45
Q

stored energy

A

potential energy

46
Q

devices that convert energy from natural sources into useful work

A

engines

47
Q

fish that looks like a snake

A

moray eel

48
Q

mammal that looks like a fish

A

whale

49
Q

largest flying bird

A

wandering albatross

50
Q

most poisonous fish

A

stonefish

51
Q

mollusk with two shells hinged together

A

bivalve

52
Q

“wing-footed”

A

pinniped

53
Q

small crustacean; scavenger

A

shrimp

54
Q

reefs are made from these

A

coral polyps

55
Q

Explain what a transfer of energy is and give an example.

A

A transfer of energy happens when one object gives some or all of its energy to another obejct.

56
Q

Label the parts of a steam engine.

A
wheel
connecting rod
piston rod
piston
cylinder