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WorksheetsReview 1st Semester Quiz 1
Total questions: 47
Worksheet time: 24mins
Scenario: You want to test whether water helps to improve plant growth. What is the Independent Variable?
The growth of the plant
Amount of Sunlight
Amount of Water
Type of soil
Type of plant
Scenario: You want to test whether water improves the growth of plants. What is the Dependent variable?
The amount of water
The growth of the plant
The amount of sunlight
Type of soil
Type of plant
Condensation
Gas to liquid
The candle goes out in the dry ice lab when you poor the beaker with dry ice on it because it lacks _____.
H2O
CO2
O2
N2
Heat
How many protons are in Aluminum?
13
27
26
14
How many electrons does a Copper atom have?
63
29
92
34
What does the topmost number (5) represent?
Mass Number
Atomic Number
Atomic Mass
Number of Neutrons
How many electrons does a Carbon atom have?
1
12
3
0
6
What does the bottom most number (39.098) (rounded out) represent?
Number of protons
Number of Protons and Electrons
Number of Protons and Neutrons
Number of Electrons, Protons and Neutrons
What is a subatomic particle with a positive charge that is in the nucleus of an atom?
neutron
proton
electron
valence electron
What is a subatomic particle without an electric charge, located in the nucleus of an atom?
neutron
proton
electron
valence electron
What mass does a neutron have?
1 amu
0 amu
-1 amu
+2 amu
Water condensating
Dry Ice subliming
CO2 (s) --> CO2 (g)
Blue paint and red paint mixed to make a purple paint?
Whoosh bottle experiment.
Candle burning.
Can crush lab. Can was heated up with hot water in it and then turned upside down in cold water.
Anytime molecule(s) change who they are bonded to?
Physical Change
Chemical Change
1/1000
mili
centi
kilo
joule
1/100
mili
centi
kilo
joule
1000
mili
centi
kilo
joule
Metric base unit for volume or displacement
gram
centimeter
liter
joule
meter
Answering the investigative question with evidence
Hypothesis
Reasoning
Claim
Control
Independent Variable
The why or the because of the investigative question.
Hypothesis
Reasoning
Claim
Control
Independent Variable
The question that we are looking at in an experiment.
Hypothesis
Reasoning
Claim
Control
Investigative Question
When a candle burns it reacts with ____ to form _____ + _____?
O2 --> CO2 + H2O
CO2 --> CO2 + O2
O2 --> CO2 + H2
CO2 --> + H2O + O2
The reason that we change coefficients in an equation.
To balance the equation
To obey the law of conservation of matter
Change the number of molecules
All of these are correct.
What is the coefficient in the formula?
2
N
H
3
In the chemical reaction, how many molecules are in the reactants?
1
3
4
8
2
In the chemical reaction, how many hydrogen atoms are in the products?
10
3
7
6
8
In the chemical equation, what number should go in front of NH3 to obey the law of conservation of matter/mass?
1
2
3
6
In the chemical reaction, how many elements are there?
1
2
3
4
6
Is this chemical equation following the law of conservation of matter/mass.
No
Yes
Is this chemical equation following the law of conservation of matter/mass.
No
Yes
Is this chemical equation following the law of conservation of matter/mass.
No
Yes
Scenario: You want to test whether water improves the growth of plants. What is the Claim?
Lot's of water is good for plants.
Plants need the right amount of water. Too little or too much water is bad for plants.
Little amount of watering is good for plants.
If I water with the right amount of water, then my plant will grow better.
Too much water causes the roots to rot and not enough water is bad because...
Scenario: You want to test whether water improves the growth of plants. What is the Reasoning?
Lot's of water is good for plants.
Plants need the right amount of water. Too little or too much water is bad for plants.
Little amount of watering is good for plants.
If I water with the right amount of water, then my plant will grow better.
Too much water causes the roots to rot and not enough water is bad because...
What is the best CLAIM?
Scenario: One class didn't study at home, another class studied at home for 30 minutes, while the 3rd class studied for 120 minutes.
Studying helps you get better grades.
If I study, then I will do better on my test?
Studying at home helps you learn and remember the information that you are tested on.
Studying at home for 30 minutes improved test scores by 16% and 33% for those that studied for 120 minutes.
Turning your phone off helps you study for tests.
What is the best CLAIM?
Scenario: One class didn't study at home, another class studied at home for 30 minutes, while the 3rd class studied for 120 minutes.
Studying helps you get better grades.
If I study, then I will do better on my test?
Studying at home helps you learn and remember the information that you are tested on.
Studying at home for 30 minutes improved test scores by 16% and 33% for those that studied for 120 minutes.
Turning your phone off helps you study for tests.
What is the best Independent Variable?
Scenario: One class didn't study at home, another class studied at home for 30 minutes, while the 3rd class studied for 120 minutes.
Studying
% score on the test.
Smartness
Eating
Turning your phone off
What is the best dependent Variable?
Scenario: One class didn't study at home, another class studied at home for 30 minutes, while the 3rd class studied for 120 minutes.
Studying
% score on the test.
Smartness
Eating
Turning your phone off
What is the best REASONING?
Scenario: One class didn't study at home, another class studied at home for 30 minutes, while the 3rd class studied for 120 minutes.
Studying helps you get better grades.
If I study, then I will do better on my test?
Studying at home helps you learn and remember the information that you are tested on.
Studying at home for 30 minutes improved test scores by 16% and 33% for those that studied for 120 minutes.
Turning your phone off helps you study for tests.
