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Worksheets1st quarter Review
Total questions: 82
Worksheet time: 1hrs 2mins
Two plants were grown in two different brands of potting mix. The graph below shows the height of the two plants over 12 weeks. Why does a key need to be added to the graph?
A. to describe the purpose of the graph
B. to show which plant is represented by each line
C. to describe how often the height was measured
D. to show what units were used to measure height
Which of the claims about why many experiments include several trials instead of a single trial is correct?
Repetition of trials makes data easier to analyze.
Repetition of trials increases the accuracy of the results.
Repetition of trials increases the sample size of the experiment.
Repetition of trials lets the experimenter change the experimental procedure.
Two scientists have different ideas about a scientific concept. What might they do to resolve their differences?
A. Debate their ideas using evidence they have gathered through observation and research.
B. Remain silent and hope someone will come up with confirmation for one side or another.
C. Each will only discuss the idea with people they know will agree with it.
D. Each will agree that the other is correct in order to remain friends.
A scientist is researching the solar system. How can the scientist best add to the empirical evidence already gathered about the solar system?
The scientist can make and record observations.
The scientist can debate the research with other scientists.
The scientist can write an opinion column about the research.
The scientist can develop a new law regarding the solar system.
Controlled scientific experiments include variables. One kind of variable is an independent variable and the other kind is a dependent variable. Which statement describes the difference between an independent variable and a dependent variable?
The dependent variable does not change and the independent variable does change.
The independent variable does not change and the dependent variable does not change.
The dependent variable is the control and the independent variable is the result.
The dependent variable changes based on the independent variable.
Student backpacks are designed using the engineering design process. Backpack designers make three prototypes of the same backpack. Each prototype uses exactly the same design and technique but different fabrics. Look at the results of testing for each of the prototypes.
Based on evidence below, which of the following claims explains the relationship between the mass of the backpack and the maximum load the backpack can carry?
A. As the fabrics get thinner, they are able to support heavy loads.
B. As the fabrics get heavier, they are able to support heavy loads.
C. As the fabrics are sewn better, they are able to support heavy loads.
D. As the fabrics age through use, they are less able to support heavy loads.
Sebastian drew a figure to illustrate evidence supporting Boyle’s law, which explains the relationship between pressure and volume for a gas kept at constant temperature. His figure looked like the one shown below.
Based on the evidence in the figure, which claim can be made about what happens to a gas due to pressure?
A. The volume of gas increases as pressure decreases, and particles get closer together.
B. The volume of gas decreases as pressure increases, and particles get closer together.
C. The amount of gas increases as pressure decreases.
D. The volume of gas remains constant as pressure increases.
Which description defines a dependent variable in a scientific experiment?
A. any factor that is controlled during an experiment
B. any factor that is measured to gather results
C. any factor that changes during an experiment
D. any factor that is changed so that it can be tested
The diagram above represents a molecule of water. The circles represent atoms, and the lines represent bonds.
What is the correct term for this diagram?
A. experiment
B. observation
C. visual model
D. mathematical model
A group of students measures the mass and volume of an object to calculate its density. Which procedure increases the accuracy and validity of the group’s data?
A. repeating the experiment and analyzing all the data
B. having group members individually calculate density
C. changing the procedure to check whether the results are constant
D. varying the equipment used to check whether the results are constant
Which of the following statements is an inference?
The mans face was red because he was hot.
The girls red dress was beautiful.
The woman on the street is walking her dog.
There are 12 students wearing a hoodie.
Which of the following statements is an observation?
The house was on fire because of a faulty electric wire.
There are 3 colors on the American flag.
They students were upset when the teacher was sick.
The baby is crying because she is hungry.
The Earths core is believed to be made up of mostly....?
Oxygen and silicon
Magnesium and oxygen
Nickel and iron
Iron and oxygen
Which of these events might lead to the modification of a scientific idea?
A. A scientist uses a computer to teach a scientific concept to students.
B. Two scientists doing the same experiment in different parts of the world under the same conditions get the same results.
C. One scientist finds evidence that she feels doesn’t fit a theory. Other scientists agree that her results are valid.
D. A scientist performs an experiment and finds out that one of the chemicals used in the experiment was contaminated.
Scientists can use many strategies during investigations, including fieldwork, surveys, models, and experiments. Which of these phrases best describes an experiment?
A. mathematical analysis of data
B. observation of animals in their natural world
C. collection of data from an uncontrolled environment for comparative purposes
D. procedure with controlled conditions and test and outcome variables
Which term describes a collection of observations on which a scientific explanation is based?
fieldwork
scientific law
scientific theory
empirical evidence
Which of the following is a characteristic of both scientific laws and theories?
A. based on scientific evidence
B. explain natural phenomena
C. based on opinions of scientists
D. not subject to change
A geologist investigates a large city that has been struck by a recent earthquake. Some areas are severely damaged, and other areas are not. What is the best method for the geologist to find a scientific explanation for the varying levels of damage?
A. Review local newspaper reports.
B. Conduct a survey of residents in each area.
C. Analyze the strength of previous earthquakes that have struck the same area.
D. Create a computer model that takes into account different variables.
What must you do before you make a hypothesis?
A. Run an experiment
B. Make observations (Research)
C. Form a theory
D. Draw conclusions
If you were running an experiment to determine the temperature at which beans sprout the fastest, what would be the independent variable?
A. The number of beans you plant
B. The height of the sprouts you grow
C. The amount of water you give the beans
D. The temperature at which each bean is kept
Trevor recorded the high temperature and low temperature in Miami for 5 days.
Based on the evidence, what was the high temperature in Miami on Thursday?
A. 24 °F
B. 33 °F
C. 24 °C
D. 33 °C
Thomas used toothpicks and balls of clay to make a model of a water molecule. The balls of clay represent atoms and the toothpicks represent bonds, as shown in the figure. Why is a model an effective way to understand the structure of water?
A. The structure of water is not really known.
B. Water is too complex to be easily understood.
C. It is too dangerous to observe a water molecule.
D. Water molecules are too small to be easily seen.
What might cause a theory to change over time?
New laws passed by the government
new but untestable ideas
changes in public opinion
the discovery of new evidence
The thin and solid outermost layer of the Earth above the mantle
lithosphere
crust
inner core
outer core
The central part of the earth below the mantle
core
asthenosphere
crust
lithosphere
The movement of matter due to differences in density that are caused by temperature variations
conduction
radiation
convection
weathering
The layer of hot, solid material between Earth's crust and core.
mantle
inner core
lithosphere
weathering
rock that forms when melted rock cools and hardens
igneous
sedimentary
metamorphic
minerals
The strong, lower part of the mantle between the asthenosphere and the outer core
lithosphere
crust
mesosphere
inner core
the upper layer of the earth's mantle, below the lithosphere, Rock that flows slowly
asthenosphere
mesosphere
crust
core
The process by which wind, water, ice, or gravity transports soil and sediment from one location to another
Deposition
weathering
erosion
crystal
A rigid layer made up of the uppermost part of the mantle and the crust.
Lithosphere
Asthenosphere
mesosphere
core
the series of processes that change one type of rock into another type of rock
weathering
erosion
Rock Cycle
deposition
A type of rock that forms from an existing rock that is changed by heat, pressure, or chemical reactions.
Sedimentary
Igneous
Metamorphic
mineral
process in which water, ice, wind, and gravity drop newly formed sediments
weathering
erosion
deposition
transport
A type of rock that forms when particles(sediment) from other rocks or the remains of plants and animals are pressed and cemented together.
igneous
metamorphic
sedimentary
weathering
Which statement best describes intrusive igneous rock
rock that cooled inside the Earths crust or mantle.
rock that cooled above the Earths surface.
What are two main types of metamorphic rock?
Foliated and non-foliated
Intrusive and extrusive
foliated and lined
intrusive and non-foliated
Sally shares her experiment with Timmy so he can conduct the experiment himself and they can compare results. This is an example of...?
reputation
replication
repetition
repawhata?
There are 3 chemical compositional layers to the Earth. How many layers are there based on physical properties?
7
4
5
6
Which 2 elements are the most abundant in the Earth's crust?
silicon and oxygen
silicon and magnesium
iron and nickel
iron and magnesium
the process that breaks down rock and other substances at Earth's surface
weathering
erosion
deposition
transport
the molten or partially molten rock material containing trapped gases produced under Earth's surface
lava
magma
volcano
rocks
a naturally occurring, non-living solid that has a specific chemical make-up and a repeating structure.
rock
mineral
stone
mountain
Scientists use mineral ________________ to identify and classify minerals.
pieces
names
properties
structures
Which one is not a property used to identify minerals?
streak
luster
hardness
size
-The color of the powder left behind when you rub the mineral against a tile.
streak
color
harness
luster
- the way a mineral's surface reflects light.
streak
luster
color
hardness
Gold, silver and copper are examples of minerals that have ______________________ luster.
metallic
nonmetallic
- a mineral's ability to resist being scratched
streak
luster
color
hardness
-the name of the scale used to determine a mineral's hardness.
Miller's scale of hardness
The Scale of Hardness
Mohs scale of hardness
Mineral Hardness Scale
Which of the following minerals is one of the hardest minerals?
pearl
diamond
talc
quartz
Which of the following is NOT property of any kind of mineral?
bends light
is magnetic
is fluorescent
can disappear
has electric potential
Rocks are made from one or more ________________________.
carbons
minerals
nutrients
The minerals found in soil that help plants grow are called ______________________.
clay
sand
nutrients
Fossils are found in _____________________ rocks.
igneous
sedimentary
metamorphic
When rocks slowly wear down into smaller pieces by water it is called ______________________________.
mining
weathering
recycling
What is underground molten rock?
Lava
Magma
Soil
Intrusive
What is aboveground molten rock?
Extrusive
Magma
Lava
Sedimentary
Limestone is an example of...
Sedimentary
Igneous
Metamorphic
Granite is an example of...
Igneous
Metamorphic
Sedimentary
Marble is an example of...
Igneous
Sedimentary
Metamorphic
Pumice is an example of
Igneous
Metamorphic
Sedimentary
Shale is an example of...
Metamorphic
Sedimentary
Igneous
What is the first step in the scientific method?
draw conclusions
ask a question/make an observation
make a hypothesis
test the experiment
The following is NOT a step in the scientific method.
collect data
share conclusions with others
make predictions
take conclusions
Which happens last?
make a hypothesis
ask a question/make an observation
make a plan
draw conclusions
To make observations you use your _______.
senses
feet
smile
experience
Performing a test or experiment allows you to test your ___________.
draw conclusions
hypothesis
senses
battery
