NEW
Font size
S
M
L
XL
WorksheetsRound 1 Midterm Review
Total questions: 18
Worksheet time: 23mins
Name
Class
Date
1.
The one factor that is changed in an experiment. You should have only one. It's what you change as the scientist.
a)
Independent Variable
b)
Dependent Variable
c)
Control
2.
The change that is the result of the independent variable. The factor that responds or is measured in an experiment.
a)
Dependent Variable
b)
Independent Variable
c)
Controll
3.
Parts of the investigation that remain the same throughout to prevent affecting the outcome
a)
Independent Variable
b)
Constant
c)
Controlled Variable
4.
Lauren is convinced that book/movie combinations are better if you have read the book before watching the movie. Lauren's friend, Alyssa, thinks that movies are just as good even if you don't read the book. They got 40 of their classmates to help them solve their debate. 20 classmates read the book Divergent and 20 more classmates viewed the movie without reading the book. All participants went to see the movie on Friday at 6 p.m. They had their classmates do a survey (1-4 stars). Then, Alyssa and Lauren averaged the number of stars for both groups.
What is the dependent variable?
What is the dependent variable?
a)
The length of the movie
b)
The time the movie starts
c)
The # of stars the movie gets
5.
How many significant figures does the following number have: 0.002040
a)
6
b)
4
c)
3
d)
2
6.
When a measurement is repeatable and consistent it is said to have...
a)
High precision
b)
Low precision
c)
High accuracy
d)
Low accuracy
7.
How close a measurement is to the accepted value is called..
a)
Accuracy
b)
Precision
c)
Significant
d)
Estimate
8.
This bullseye demonstrates...
a)
High Accuracy & High Precision
b)
High Accuracy & Low Precision
c)
Low Accuracy & High Precision
d)
Low Accuracy & Low Precision
9.
A bar of copper has a mass of 216g and a volume of 24cm3. What is the density of copper?
a)
9g/cm3
b)
.11g/cm3
c)
5184g/cm3
d)
322mL
10.
Properties that can be observed without changing the identity of the substance.
a)
Physical
b)
Chemical
11.
Example for chemical property
a)
color
b)
hardness
c)
toxicity
d)
solubility
12.
A mixture that is NOT evenly distributed is called ....
a)
Compounded
b)
Homogenous
c)
Heterogenous
d)
Salty
13.
Are made from a combination of 2 or more elements in a constant ratio...
a)
Atome
b)
Mixture
c)
Compounds
d)
Elements
14.
A substance that is tightly packed together is most likely in what state of matter?
a)
solid
b)
liquid
c)
gas
15.
What state of matter is X?
a)
solid
b)
liquid
c)
gas
d)
supercritical fluid
16.
Write in scientific notation:
0.0000378
0.0000378
a)
3.78 x 10-5
b)
3.78 x 10-6
c)
0.378 x 10-5
17.
The portion of a solution that does the dissolving is known as ______________.
a)
solvent
b)
solute
c)
dissolver
d)
dissolving
18.
Which substance in the image is the solute?
a)
glass
b)
salt
c)
spoon
d)
water
Reset
