Test 4 Flashcards Preview

5th Grade Science > Test 4 > Flashcards

Flashcards in Test 4 Deck (34):
0

the molten rock in the earth's mantle

magma

1

the decaying plant and animal material in the soil

humus

2

very durable artificial rock

concrete

3

the rock that smells like mud when wet

shale

4

the rock used to make chalkboards

slate

5

material used in pencils instead of lead

graphite

6

a person who studies minerals

mineralogist

7

the hardest substance of all

quartz

8

a rocklike object that looks like a mudball on the outside but is filled with crystals on the inside

geode

9

our most useful metal

iron

10

the rarest gemstone

ruby

11

the only metal that is liquid at room temperature

mercury

12

the best conductor of electricity

silver

13

all minerals form a special kind of solid called what?

crystal

14

a radioactive metal used as a source for nuclear power

uranium

15

lighweight, nonmagnetic, rustproof metal

aluminum

16

a scientist who studies the structure of the earth

geologist

17

two types of weathering

chemical
physical

18

rare, beautiful minerals that are very hard but have not yet been polished

gemstones

19

oil in its natural state

crude oil or petroleum

20

an underground spring that shoots streams of boiling water and steam up into the air from time to time

geyser

21

a person who explores caves

spelunker

22

plant and animal remains that have turned to stone

petrified fossils

23

fossils that form when mud buries a plant or animal and then quickly hardens around it

mold fossils

24

scientists who study fossiles

paleontologists

25

when were most fossils probably formed?

during the Flood of Noah's time

26

igneous, sedimentary, or metamorphic: granite

igneous

27

igneous, sedimentary, or metamorphic: pumice

igneous

28

igneous, sedimentary, or metamorphic: obsidian

igneous

29

igneous, sedimentary, or metamorphic: limestone

sedimentary

30

igneous, sedimentary, or metamorphic: sandstone

sedimentary

31

igneous, sedimentary, or metamorphic: shale

sedimentary

32

igneous, sedimentary, or metamorphic: slate

metamorphic

33

igneous, sedimentary, metamorphic: marble

metamorphic