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Worksheets8th BW Mix 10
Total questions: 10
Worksheet time: 50mins
Name
Class
Date
1.
7,000 g = ____ kg
a)
70
b)
700
c)
7
d)
0.07
2.
1 km = 10,000 __
a)
dam
b)
hm
c)
m
d)
dm
3.
Write 0.00000054 in scientific notation.
a)
54 x 108
b)
5.4 x 107
c)
54 x 10-8
d)
5.4 x 10-7
4.
Write 3.5 x 106 in standard notation.
a)
0.0000035
b)
35,000,000
c)
3,500,000
d)
0.00000035
5.
A test is set up to test which brand of soda creates the biggest foam explosion when adding a Mentos candy. Three different sodas were tested. They measured the height of the foam eruption. What is the dependent variable?
a)
Brand of soda
b)
Number of mentos candies used
c)
Height of foam eruption
d)
Temperature of soda
6.
Select 3: Which of these are physical changes?
a)
change in density (mass/volume)
b)
melting (phase change)
c)
formation of a gas (bubbles)
d)
dissolving (solubility)
7.
Select 3: Which of these are signs of a chemical reaction?
a)
signs of cooking or burning
b)
color change, odor change, gas bubbles
c)
freezing or melting (phase change)
d)
rust or tarnish
8.
Select all that apply: which of the following are characteristics of metals?
a)
malleable and ductile
b)
brittle
c)
good conductor
d)
poor conductor (insulator)
e)
high luster (lustrous)
9.
Select all that apply: which of the following are characteristics of nonmetals?
a)
mostly brittle solids or gasses
b)
malleable and ductile
c)
poor conductors (insulators)
d)
dull (no luster)
10.
The Period is -
a)
the row -->
b)
the column |
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