Test 6 Semester Exam

Question 1

the metal that is the best conductor of electricity

Answer 1

silver

Question 2

man’s most useful metal

Answer 2

iron

Question 3

metal that is liquid at room temperature

Answer 3

mercury

Question 4

metal used as a source for nuclear power

Answer 4

uranium

Question 5

pumice is what kind of rock

Answer 5

igneous rock

Question 6

limestone is what kind of rock

Answer 6

sedimentary

Question 7

mineral used to make pencils

Answer 7

graphite

Question 8

the rarest gemstone

Answer 8

ruby

Question 9

rocklike object that looks like a mudball

Answer 9

geode

Question 10

force that resists motion

Answer 10

friction

Question 11

attraction that exists between any pair of objects

Answer 11

gravity

Question 12

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

Answer 12

electricity

Question 13

push or pull

Answer 13

force

Question 14

amount of matter in an object

Answer 14

mass

Question 15

an animal blending in with its surroundings is an example of

Answer 15

camouflage

Question 16

an immature insect that looks just like the adult

Answer 16

nymph

Question 17

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

Answer 17

migrating

Question 18

an animal that is active at night

Answer 18

nocturnal

Question 19

an animal that eats mostly meat

Answer 19

carnivore

Question 20

the largest group of mammals

Answer 20

rodents

Question 21

all rodents are plant-eaters, which makes them

Answer 21

herbivores

Question 22

an object that does not allow light to pass through

Answer 22

opaque

Question 23

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

Answer 23

transparent

Question 24

an object that makes its own light

Answer 24

luminous

Question 25

the bouncing back of light

Answer 25

reflection

Question 26

the bending of light

Answer 26

refraction

Question 27

everything that takes up space and has mass

Answer 27

matter

Question 28

the state of matter that has a definite shape

Answer 28

solid

Question 29

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

Answer 29

liquid

Question 30

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

Answer 30

diffusion

Question 31

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

Answer 31

freezing point

Question 32

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

Answer 32

melting point

Question 33

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

Answer 33

boiling point

Question 34

the boiling point of water

Answer 34

212 degrees F

Question 35

water as a gas

Answer 35

steam

Question 36

kinetic or potential energy: a book on a shelf

Answer 36

potential

Question 37

kinetic or potential energy: a rolling bowling ball

Answer 37

kinetic

Question 38

kinetic or potential energy: a running stream

Answer 38

kinetic

Question 39

kinetic or potential energy: a stretched rubber band

Answer 39

potential

Question 40

kinetic or potential energy: water behind a dam

Answer 40

potential

Question 41

kinetic or potential energy: a swinging baseball bat

Answer 41

kinetic

Question 42

the energy of motion

Answer 42

kinetic energy

Question 43

the result of a force moving an object

Answer 43

work

Question 44

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

Answer 44

atomic energy

Question 45

stored energy

Answer 45

potential energy

Question 46

devices that convert energy from natural sources into useful work

Answer 46

engines

Question 47

fish that looks like a snake

Answer 47

moray eel

Question 48

mammal that looks like a fish

Answer 48

whale

Question 49

largest flying bird

Answer 49

wandering albatross

Question 50

most poisonous fish

Answer 50

stonefish

Question 51

mollusk with two shells hinged together

Answer 51

bivalve

Question 52

"wing-footed"

Answer 52

pinniped

Question 53

small crustacean; scavenger

Answer 53

shrimp

Question 54

reefs are made from these

Answer 54

coral polyps

Question 55

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

Answer 55

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

Question 56

Label the parts of a steam engine.

Answer 56

``` wheel connecting rod piston rod piston cylinder ```