quiz 1

Question 1

element

Answer 1

is 2 of the same atoms stuck together and there are several of these pairs in the picture

Question 2

atoms

Answer 2

the same color dots single dots of the same element

Question 3

compound

Answer 3

2 types of element atoms are bonded and there are several of these pairs are in the picture

Question 4

mixture

Answer 4

2 are more pairs of molecules mix of colors

Question 5

heterogeneous mixture examples

Answer 5

oil and water
soup
unmixed paint
trail mix
salad
dressing

Question 6

homogenous mixture examples

Answer 6

lemonade
tea
salt and water
coffee

Question 7

physicals changes examples

Answer 7

Cutting, bending, dissolving, freezing, boiling, and melting

Question 8

chemical changes

Answer 8

burning
cooking
rusting
digesting
cooking
heating
baking

Question 9

difference between atom and molecule ex of each

Answer 9

atoms are building blocks and several atoms create molecules.

ex
molecule-several atoms of hydrogen make up a hydrogen molecule

atoms- a single (atom) “building block” of carbon

Question 10

u micro

Answer 10

-6

Question 11

m milli

Answer 11

-3

Question 12

c centi

Answer 12

-2

Question 13

d deci

Answer 13

-1

Question 14

k kilo

Answer 14

3

Question 15

d=m/v can also find mass and volume by

Answer 15

dividing by other known number

Question 16

exact numbers

Answer 16

12 eggs
pi sign
100 students
12in=1 ft