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Worksheets2nd Quarter Exam Review
Total questions: 40
Worksheet time: 20mins
Name
Class
Date
1.
Which of the following is an example of a Quantitative Observation?
a)
Roses smell good
b)
John is 5 ft. 3 inches tall
c)
Ms. Burn's shirt is pink
d)
Sandpaper feels rough
2.
A compound is...
a)
2 or more atoms chemically combined
b)
the smallest particle of matter
c)
2 or more different elements chemically combined
3.
Which of the following chemical formulas is an example of a molecule?
a)
H2O
b)
O2
c)
NaCl
d)
CO2
4.
Folding a piece of paper into a paper airplane is an example of a...
a)
Chemical Property
b)
Physical Change
c)
Chemical Change
d)
Physical Property
5.
Photosynthesis takes place in which organelle in plant cells?
a)
Mitochondria
b)
Chloroplast
c)
Nucleus
d)
Vacuole
6.
Blue litmus paper is dipped into an unknown solution. The paper turns red. What kind of solution do we have?
a)
Base
b)
Acid
c)
Neutral
7.
The solution Phenolphthalein is used to test for which kind of substance?
a)
Acid
b)
Base
c)
Neutral
8.
What is the correct order of the levels of organization in the human body?
a)
Tissues - Cells - Organ Systems - Organs - Organism
b)
Organism - Organ Systems - Organs - Tissues - Cells
c)
Organ Systems - Cells - Tissues - Organism - Organs
d)
Cells - Tissues - Organs - Organ Systems - Organism
9.
Which organelle does Cellular Respiration take place in?
a)
Chloroplast
b)
Nucleus
c)
Mitochondria
d)
Vacuole
10.
8-14 on the pH scale represents which kind of substances?
a)
Acid
b)
Base
c)
Neutral
11.
In chemical equations, _____ are located to the right side of the arrow?
a)
Reactants
b)
Products
12.
Which law states: In a chemical reaction (change), matter cannot be created or destroyed?
a)
Law of Conservation of Matter
b)
Law of Thermodynamics
c)
Law of Conservation of Energy
d)
Laws of Motion
13.
The vertical columns on the Periodic Table are called?
a)
Periods
b)
Families/Groups
14.
Mixtures are put together...
a)
Physically
b)
Chemically
15.
Animal cells lack which 2 organelles that Plant cells have?
a)
Vacuole & Nucleus
b)
Chloroplast & Nucleus
c)
Cell Wall & Mitochondria
d)
Chloroplast & Cell Wall
16.
How many atoms are in the compound 2H2O3 ?
a)
4
b)
10
c)
7
d)
8
17.
A characteristic of a substance that can be observed and measured (like color, texture, odor, or hardness) without changing it into a different substance is called a...
a)
Physical Property
b)
Chemical Property
c)
Physical Change
d)
Chemical Change
18.
Which of the following is NOT a physical property?
a)
Shape
b)
Density
c)
Boiling Point
d)
Burning
19.
What are the reactants in the chemical equation for cellular respiration?
C6H12O6 + 6O2 ---> 6CO2 + 6H2O + ATP
C6H12O6 + 6O2 ---> 6CO2 + 6H2O + ATP
a)
Water & Oxygen
b)
Glucose & Oxygen
c)
ATP & Carbon Dioxide
d)
Glucose & Carbon Dioxide
20.
A change in the state of matter from a solid ---> gas or a gas ----> solid is called...
a)
Precipitate
b)
Condensation
c)
Sublimation
d)
Water Vapor
21.
Which equation is the following?
6CO2 + 6H2O + Energy ---> C6H12O6 + 6O2
6CO2 + 6H2O + Energy ---> C6H12O6 + 6O2
a)
Photosynthesis
b)
Cellular Respiration
22.
Which organelle is known as the "storage tank" of the cell. It stores food, water, wastes, and enzymes.
a)
Vacuole
b)
Nucleus
c)
Cell Membrane
d)
Chloroplast
23.
Which of the following is a pure substance?
a)
Salt Water
b)
Oxygen
c)
Pizza sauce
d)
Peanut Butter
24.
Which is NOT an indicator that a chemical change has taken place?
a)
Color change
b)
Temperature change
c)
Formation of a new substance
d)
State of matter change
25.
Creamy peanut butter is a ___________ mixture.
a)
Heterogenenous
b)
Homogeneous
26.
Anything that has mass and takes up space is known as ______.
a)
Mass
b)
Matter
c)
Energy
27.
DNA is found in which organelle of the cell?
a)
Nucleus
b)
Cell Membrane
c)
Vacuole
d)
Chloroplast
28.
This part of the cell controls what substances enters and leaves the cell; and it semi-permeable.
a)
Cell Wall
b)
Nucleus
c)
Cell Membrane
d)
Cytoplasm
29.
A change in matter that results in the formation of one or more new substances with new chemical properties is called a...
a)
Physical Change
b)
Chemical Change
30.
C6H12O6 is the name of which compound?
a)
Salt
b)
Sugar (Glucose)
c)
Carbon Dioxide
d)
Oxygen
31.
Hard, malleable, and ductile are physical properties of...
a)
Non Metals
b)
Metals
c)
Acids
d)
Bases
32.
The cell process by which molecules move from high concentrations to low concentrations is called...
a)
Photosynthesis
b)
Cellular Respiration
c)
Mitosis
d)
Diffusion
33.
After Mitosis has occurred, what is the name given to the newly formed cells?
a)
Son Cells
b)
Children Cells
c)
Daughter Cells
d)
Neo Cells
34.
Which pH reading would indicate the strongest acid?
a)
pH 4
b)
pH 2
c)
pH 1
d)
Ph 6
35.
The eyepiece on a microscope magnifies an image by...
a)
4x
b)
10x
c)
40x
d)
100x
36.
A solid substance that forms when 2 liquid solutions are combined is known as ...
a)
Sublimation
b)
a Precipitate
c)
a Physical Change
37.
Brittle, dull appearance, and non-conductor are physical characteristics of...
a)
Metals
b)
Non Metals
38.
Which type of mixture is another name for a solution?
a)
Homogeneous Mixture
b)
Heterogeneous Mixture
39.
Which organelle in animal cells is known to break down and digest things inside the cell?
a)
Mitochondria
b)
Lysosome
c)
Chloroplast
d)
Cell Membrane
40.
In a scientific experiment, the variable that is changed or manipulated is called the...
a)
Dependent Variable
b)
Independent Variable
c)
Control Variable
d)
Scientific Variable
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