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7th Grade Science Review 2/2019 Flashcards | StudBud
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7th Grade Science Review 2/2019
7th Grade Science Review 2/2019
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A review over all topics covered in the 1st semester of 7th grade science
Flashcards
74 cards
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Practice quiz
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Questions
74
Answers
1
To find the mass of your shoe you would use what piece of equipment?
metric tape
beaker
triple beam balance
thermometer
2
What is the approximate mass of a paperclip?
1 hg
1 g
1 mg
1 kg
3
Which two parts of the atom are found in the nucleus?
electrons and neutrons
protons and neutrons
protons and electrons
only the protons
4
Which of the following numbers, represents a neutral on the pH scale?
8
5
7
6
5
An acid produces ______ ions?
basic
hydroxide
acidic
hydrogen
6
Which part of the atom has a negative charge?
neutron
electron
nucleus
proton
7
An element that has properties of a metal and a nonmetal is called a
metalloid
metal
nonmetal
compound
8
Setting the balance to zero is called
meniscus
balance
volume
calibrate
9
A battery stores which type of energy?
electrical
chemical
heat
geothermal
10
Which of the following is an example of a compound?
O2
Ne2
N2
CO2
11
If a solution is a 13 on the pH scale, it is a/an _______.
strong base
strong acid
weak base
weak acid
12
A base produces ______ ions?
hydroxide
basic
hydrogen
acidic
13
Which of the following is a quantitative observation?
There are 13 lab table in all of the science rooms.
There are wooden lab tables in all of the science rooms.
There are lab tables in all of the science rooms.
There are black-topped lab tables in the science rooms.
14
Which of the following is an observation not an inference?
I bet lots of kids will play outside after school today.
I think the Science test will be long.
It will probably be warm outside today.
The sun is shinning today.
15
Which of the following is a qualitative observation of the sunflower seeds in the picture?
The seeds are black and white.
Each seed is about 2 cm in length.
The seeds are about 1 cm across.
There are about 40 seeds pictured.
16
Dry ice sublimes which means it changes directly from a
liquid to a gas
solid to a gas
gas to a solid
liquid to a solid
17
The last step (Step 6) of the Scientific Method is ________________.
identify the problem
share your results
research
experiment
18
The valence level is the
outermost
nucleus
first
innermost
19
What is the approximate volume of a cup?
250kL
250 L
250 DkL
250mL
20
The dependent variable is
the part of the experiment that you change
always graphed on the x-axis
the part of the experiment that never changes
the part of experiment that changes in response to changes
21
Independent variables are always graphed on the ____ axis.
y- axis
x- axis
22
Step 1 of the scientific method is ________________.
identify the problem
data
experiment
conclusion
23
In the metric system, the largest prefix is _________.
centi-
kilo-
Deka-
milli-
24
What are salt and iron filings classified as?
mixture
compound
none of these answers
element
25
If a solution is a 6 on the pH scale, it is a/an _______.
strong base
weak acid
strong acid
weak base
26
What is the symbol for iron?
In
I
Fe
Ir
27
What is zinc classified as?
compound
none of these answers
mixture
element
28
In the metric system, what units do we use to measure mass?
liters
meters
pounds
grams
29
A bag that is sealed is an example of a ________ system.
open
old
new
closed
30
Stored energy that can be "burned" to do work is called
geothermal
chemical
heat
electrical
31
In the metric system, the smallest prefix is _________.
milli-
Deka-
kilo-
centi-
32
The control in a science experiment is used for ________________.
to make your experiment go faster
controlling the outcome of the experiment
comparing with your data
changing the channel on your tv
33
Bohr models are drawn to represent ______.
the nucleus
electrons
protons
neutrons
34
A hypothesis is _______________________.
the answer to a multiplication problem
the findings in a science experiment
an educated guess
a sentence that is part of the conclusion
35
Cody increases the amount of light to see how tall a plant will grow. What is the control gr.?
height plants grow
plants with no additional light
type of plant
amount of light
36
Which part of the atom has a positive charge?
neutron
proton
nucleus
electron
37
If a hydrangea flower is planted in basic soil, what color will it be?
blue
red
yellow
white
38
A metric tape would be used in order to find what?
mass
circumference
temperature
volume
39
1km = _______ m
10
1000
100
1
40
The 2 types of observations are _____________.
independent and dependent
none of the above
control and variable
qualitative and quantitative
41
Which of the following is NOT a lab safety rule?
Always read through the directions before doing a lab
Never leave glassware on the edge of the table
Always work in a group
If you have a spill, tell the teacher first
42
N
nobelium
None of these answers
nickel
nitrogen
43
If you have a set of data and you add the numbers together then divide by how many there are ..
median
none of these
mode
mean
44
A guyser is an example of which type of energy?
geothermal
heat
chemical
electrical
45
The bottom of the curved surface from which you measure volume is
volume
calibrate
balance
meniscus
46
Cody increases the amount of light to see how tall a plant will grow. What is the indep. var.?
amount of light
height plants grow
plants with no additional light
type of plant
47
What is the atomic mass for oxygen?
oxygen
O
8
15.999
48
Which of the following is an inference not an observation?
The classroom has yellow walls.
I heard Mrs. Ike yell down the hallway.
I bet we are having pizza for lunch.
The hall smells like lunch.
49
Which is NOT an example of a lab safety rule?
go fast to get all materials for the lab
wear safety goggles when using chemicals
read through the entire lab before beginning
tie long hair back
50
Au
silver
gold
platinum
aluminum
51
Which of the following is an example of an element?
H3
C6H22O11
H2O
NH3
52
Which of the following is a quantitative observation of the sunflower seeds in the picture?
The seeds have a white stripe on them.
The seeds are about 1 cm across.
The seeds are black and white.
There are a lot of seeds in the picture.
53
In the metric system, what units do we use to measure length?
meters
liters
inches
grams
54
Which of the following is NOT an important characteristic when doing group work?
good listening skills
including everyone in the group
doing everything so it is done right
cooperation
55
An independent variable is __________.
the part of the experiment that stays the same
the part of the experiment that you change
the result due to the changes made on the experiment
someone who is able to support themselves
56
What piece of equipment is used to measure temperature?
triple beam balance
beaker
spring scale
thermometer
57
In the metric system, what units do we use to measure temperature?
Fahrenheit
liters
Celsius
meters
58
1 cm = _____ mm
100
10
1
2
59
Which part of the atom has a negative charge?
neutron
electron
nucleus
proton
60
What is saltwater classified as?
none of these answers
element
compound
mixture
61
Who was the originally designer of the periodic table?
Einstein
Mendeleev
Jefferson
Boron
62
What is the atomic number for oxygen?
O
15.999
oxygen
8
63
The Law of Conservation states that energy, matter and mass cannot be
lost or found
kept or removed
created or destroyed
made or burned
64
Which part of the atom has a neutral charge?
electron
neutron
nucleus
proton
65
Energy of an object due to its temperature is called
geothermal
chemical
heat
electrical
66
In step 1 of the scientific method, problems are always written in the form of a ____________.
question
song
sentence
statement
67
Which of the following is the approximate length of a lab table in this room?
1.5 km
1.5 cm
1.5 m
1.5 mm
68
The scientific method is_____________________
A process that doesn't work.
A process used to help solve problems.
A process for solving equations.
A method invented by Mrs. C. on how to turn in science work
69
What does pH stand for?
potential of hydrogen
potential of hyperactive
potential of heat
potential of healthiness
70
Which of the following is an inference not an observation?
I think it will be warm today.
The sky is blue today.
I see clouds in the sky.
The sun is shining outside.
71
What is the symbol for oxygen?
O
oxygen
8
15.999
72
Volume is measured most accurately with which piece of equipment?
beaker
triple beam balance
metric tape
graduated cylinder
73
What is isopropyl alcohol classified as?
none of these answers
element
compound
mixture
74
Cody increases the amount of light to see how tall a plant will grow. What is the dep. var.?
plants with no additional light
type of plant
height plants grow
amount of light
