P.S.Test # 1

Question 1

Classes of rocks

Answer 1

1. Sedimentary
2. Metamorphic
3. Igneous

Question 2

sedimentary class

Answer 2

(settle) mineral and plant/animal remains and precipitated dissolved minerals

Question 3

metamorphic class

Answer 3

(changed) by pressure, heat and sometimes water

Question 4

Igneous class

Answer 4

(fire formed) cooled and formed from melted rock

Question 5

names of rocks in sedimentary class

Answer 5

1. coal
2. limestone
3. chert
4. flint
5. jasper
6. agate
7. shale (mudstone or siltsone)
8. sandstone
9. conglomerate

Question 6

names of rocks in metamorphic class

Answer 6

1. schist
2. marble
3. gneiss
4. slate
5. quartzite

Question 7

names of rocks in Igneous class

Answer 7

1. quartz
2. scoria
3. pumice
4. obsidian
5. hornblende
6. basalt
7. olivine
8. feldspar
9. granite
10. mica

Question 8

coal

Answer 8

black with glossy luster, burns

Question 9

limestone

Answer 9

tiny crystals or crystals not visible, fizzes with acid

Question 10

chert

Answer 10

white to light tan

Question 11

Jasper

Answer 11

is red

Question 12

Agate

Answer 12

has circular banding of varyious colors

Question 13

sandstone

Answer 13

packed sand which breaks around grains

Question 14

conglomerate

Answer 14

packed pebbles, sometimes called brecca f pebbles are angular

Question 15

schist

Answer 15

banded somewhat like gneiss, but much softer and flaky due to mica

Question 16

Marble

Answer 16

large crystals fizzes with acid

Question 17

Gniess

Answer 17

streaks/bands of black and white in granite like rock

Question 18

slate

Answer 18

smooth layered break with layers visible at the edges, soft, colors are gray to black with green or red occasionally

Question 19

quartzite

Answer 19

hardened sandstone which breaks through grains giving flaky look at a few places on break, overall an irregular break. occasionally it will have a sugary luster look.

Question 20

quartz

Answer 20

glassy crystals, irregular break, many colors (clear, white, pink, red, purple, tan, ect) cuts glass

Question 21

be able to draw the rock cycle

Answer 21

2
four boxes 4 arrows
1. melted rock
2.igneous

Question 22

scoria (volcanic cinder)

Answer 22

very many gas holes, dark in color

Question 23

obsidian

Answer 23

black volcanic glass, occassionally some other dark colors

Question 24

pumice

Answer 24

many gas holes will float in water, but light in color- sometimes this will bubble a small amount and smell like hydrogen

Question 25

Hornblende

Answer 25

black glossy, but not as transparant as glassy crystals, irregular break, found in and with granite, in purer form crystals are columnarand many sided. it is almost indistinguisable from pyoxene crystals.

Question 26

Basalt

Answer 26

irregular break with occassional holes, massive and hard. usually dark in color drak gray with greenish ting to almost black.

Question 27

olivine

Answer 27

irregualr break, massive and hard, distinctive light green to dar green color. density 3.3

Question 28

Feldspar

Answer 28

if crystals are any size this will have glossy flat break with an occasional right angle break.usually whit or orange. it can be green or blue density about 2.6. it will ccut glass. found in and with granite.

Question 29

granite

Answer 29

mix of fairly large quartz, mica, feldspar, and black crystals. glassy salt and pepper look. Black/white or black/orange.

Question 30

Mica

Answer 30

flakes off in thn transparent glassy sheets, can be clear or black. easily scratched (2.2) density 2.8.

Question 31

Flint

Answer 31

is black to gray