Abeka 5Th Grade Science Ch 1-6

Front 1

Force

Back 1

push or pull

Front 2

Contact Force

Back 2

when one object pushes on another

Front 3

Friction

Back 3

force that resists motion

Front 4

Gravity

Back 4

force of attraction between objects

Front 5

Water Wheel

Back 5

invention used to harness the power of water

Front 6

Solid

Back 6

state of matter that has a definite shape

Front 7

Liquid

Back 7

state of matter that has no definite shape but stays together

Front 8

Gas

Back 8

State of matter with no definite shape and tends to diffuse

Front 9

32 degrees

Back 9

Freezing and melting point

Front 10

212 degrees

Back 10

boiling and condensation point

Front 11

Repel

Back 11

like charges

Front 12

Attracts

Back 12

opposite charges

Front 13

Lodestones

Back 13

rocks early compasses where made of

Front 14

Transfer of energy

Back 14

when one object gives some or all of its energy to another

Front 15

Melting

Back 15

the temperature at which a solid becomes a liquid

Front 16

Boiling

Back 16

the temperature at which a liquid becomes a gas

Front 17

Freezing

Back 17

the temperature at which a liquid becomes a solid

Front 18

Burning

Back 18

Combustion

Front 19

Oxygen

Back 19

all fuels use in order to burn

Front 20

Octane

Back 20

higher number give better performance

Front 21

Propeller

Back 21

pulls the airplane through the air

Front 22

Moray Eel

Back 22

fish that looks like a snake

Front 23

Whale

Back 23

mammal that looks like a fish

Front 24

Wandering Albatross

Back 24

largest flying bird

Front 25

Stonefish

Back 25

most poisonous fish

Front 26

Bivalve

Back 26

mollusk with two shells

Front 27

Univale

Back 27

mollusk with one shell

Front 28

Pinniped

Back 28

"wing-footed"

Front 29

Shrimp

Back 29

small crustaceans: scavengers

Front 30

Coral Polyps

Back 30

reefs are made from their skeletons

Front 31

Engines

Back 31

devices that convert energy from a natural source to useful work

Front 32

Potential

Back 32

Stored energy

Front 33

Atomic Energy

Back 33

released from atoms when split or joined

Front 34

Work

Back 34

the result of a force moving an object

Front 35

Kinetic

Back 35

energy in motion

Front 36

Steam

Back 36

water as a gas

Front 37

Diffusion

Back 37

tendency to float away or spread out

Front 38

Matter

Back 38

everything that takes up space and has weight

Front 39

Mass

Back 39

amount of matter in an object

Front 40

Electricity

Back 40

causes electrically charged items to attract or repel

Front 41

Refraction

Back 41

bending of light

Front 42

Reflection

Back 42

bouncing back of light

Front 43

Luminous

Back 43

makes its own light

Front 44

Transparent

Back 44

light passes through

Front 45

Opaque

Back 45

light does NOT pass through

Front 46

Translucent

Back 46

light is defused

Front 47

Rodents

Back 47

largest group of mammals

Front 48

Herbivores

Back 48

plant eater

Front 49

Carnivores

Back 49

meat eaters

Front 50

Nocturnal

Back 50

active at night

Front 51

Migrating

Back 51

moving from place to place with the seasons

Front 52

Nymph

Back 52

immature insect that looks like the adult

Front 53

Camouflage

Back 53

blends in with its surrounding

Front 54

Mimicry

Back 54

looks like another for protection

Front 55

Silver

Back 55

best conductor of heat

Front 56

Iron

Back 56

most useful metal

Front 57

Mercury

Back 57

liquid at room temperature

Front 58

Uranium

Back 58

source of nuclear power

Front 59

Pumice

Back 59

Igneous rock

Front 60

Limestone

Back 60

Sedimentary rock

Front 61

Graphite

Back 61

found in pencils

Front 62

Ruby

Back 62

rarest gemstone

Front 63

Geode

Back 63

mudball