WorksheetsScientific Method and Experimentation Quiz
Total questions: 54
Worksheet time: 32mins
Which of the following is the correct first step in the scientific method?
Draw conclusions
Ask a question or make an observation
Communicate results
Form a hypothesis
A scientist writes down exactly how they did an experiment so others can repeat it. This is called:
Prediction
Analysis
Replication (or reproducibility)
Modeling
What is a hypothesis?
A proven fact
An educated guess that can be tested
A conclusion based on data
An opinion
Which variable is changed on purpose by the experimenter?
Dependent variable
Control variable
Independent variable
Random variable
In an experiment, the group that does not receive the experimental treatment is the:
Experimental group
Control group
Sample group
Variable group
When scientists combine results from similar experiments and summarize them, they are doing:
Qualitative observation
Theoretical physics
Data analysis and drawing conclusions
Guesswork
A lab procedure says to measure the mass of an object using a balance. Measuring mass rather than weight matters because:
Mass changes with location on Earth
Weight is the same everywhere in the universe
Mass does not depend on gravity; weight does
A balance measures weight, not mass
Which of these is a quantitative observation?
The liquid looks green.
The plant seems healthier.
The solution is 7.5 mL in volume.
The taste is bitter.
A scientist repeats an experiment and gets very different results each time. The best next step is to:
Publish immediately
Discard the experiment and try a different topic
Check procedures, measurements, and possible sources of error
Increase the sample size to 1
Which practice helps reduce bias in an investigation?
Using a smaller sample size
Keeping methods secret
Using a blind or double-blind design when possible
Only reporting positive results
Climate is best defined as:
The temperature at noon today
The average long-term patterns of temperature and precipitation for a region
A single storm event
The humidity at 3 p.m. on a specific day
Weather and climate differ because weather refers to short-term atmospheric conditions while climate refers to:
Ocean currents only
Long-term patterns of temperature and precipitation
The ozone layer
Local soil types
The greenhouse effect is important because it:
Cools the planet to absolute zero
Traps some heat and helps keep Earth warm enough for life
Causes all weather events
Is unrelated to climate
Which factor has the largest influence on climate zones (tropical, temperate, polar)?
Distance from the Sun
Latitude (distance from the equator)
Phase of the Moon
Local soil type
A region that experiences four distinct seasons likely has which climate characteristic?
Very small seasonal temperature changes
Large seasonal temperature changes
Zero precipitation year-round
Constant tropical storms
Which instrument is used to measure atmospheric pressure?
Thermometer
Anemometer
Barometer
Hygrometer
A cold front arrives and the temperature drops quickly. Which weather change is most likely?
A sudden increase in humidity and possible storms
Clear skies and no wind
A long slow warming trend
A rise in sea level
El Niño and La Niña primarily affect global weather by altering:
Mountain formation
Ocean surface temperatures and atmospheric circulation patterns
The rotation of Earth
The chemical composition of rocks
Which layer of the Earth is solid and is the outermost layer?
Inner core
Mantle
Crust
Outer core
Which layer is made mostly of liquid iron and nickel and creates Earth's magnetic field through its movement?
Crust
Mantle
Outer core
Inner core
The mantle is best described as:
A thin, rigid layer on which plates float
A hot, mostly solid layer that flows slowly (convection)
The coldest part of Earth
The atmosphere's lowest layer
Which of the following is deepest (closest to Earth's center)?
Continental crust
Oceanic crust
Mantle
Inner core
The lithosphere includes:
The entire mantle only
The crust and the very top of the mantle (rigid plates)
Only ocean water
The atmosphere
Convection currents in the mantle are caused by:
Tectonic plates moving because of tides
Heat from Earth's interior causing material to rise and fall slowly
Solar wind
Volcanoes only
Tectonic plates are pieces of Earth's _____ that move very slowly.
Atmosphere
Lithosphere
Hydrosphere
Biosphere
When two tectonic plates move away from each other, the boundary is called:
Convergent boundary
Transform boundary
Divergent boundary
Subduction zone
A transform boundary is characterized by:
One plate sliding past another horizontally
Plates moving toward each other and creating mountains
Plates moving away and forming new crust
Plates melting into the core
At a convergent boundary where an oceanic plate collides with a continental plate, what commonly happens?
Oceanic plate subducts beneath the continental plate, causing volcanoes and earthquakes
Plates move apart and form new ocean floor
Plates slide past with no activity
Crust becomes thicker without earthquakes
Which evidence best supports the idea that continents were once joined (plate tectonics)?
Identical clouds worldwide
Matching fossil types and rock layers across continents
Variation in languages
Differences in cuisine
Matter is anything that:
Has mass and takes up space (volume)
Is invisible
Is only solid or liquid, not gas
Has color only
Which state of matter has a definite volume but no definite shape?
Solid
Liquid
Gas
Plasma
Changing from liquid to gas requires adding energy; this process is called:
Condensation
Freezing
Evaporation or boiling
Sublimation
Which of the following is a physical change?
Burning wood to ash
Rusting of iron
Melting ice into water
Baking a cake
Which is evidence of a chemical change?
Change in shape only
Change in state with no new substance
Color change, gas production, or formation of a precipitate indicating new substances formed
Reversible freezing and melting
An element is:
A substance that can be broken down into simpler substances by chemical means
A pure substance made of only one type of atom
A mixture of two or more substances
A solution
Which of these is a compound (not an element)?
Oxygen (O₂)
Helium (He)
Water (H₂O)
Gold (Au)
The number of protons in an atom determines its:
Isotope only
Atomic number and identity of the element
Amount of charge in the outermost shell only
Physical state at room temperature
On the periodic table, elements are arranged by:
Alphabetical order only
Increasing atomic mass only
Increasing atomic number and repeating chemical properties (periodic trends)
Random order
Metals on the periodic table typically:
Are poor conductors of heat and electricity
Are brittle and dull
Conduct heat and electricity and are malleable
Are all gases at room temperature
Which particle has a positive charge?
Electron
Neutron
Proton
Photon
Which property best distinguishes a mixture from a compound?
Compounds can be separated by physical means; mixtures cannot
Mixtures can be separated by physical means; compounds require chemical changes to separate
Mixtures are always solids only
Compounds are always gases only
Which scenario best demonstrates conservation of mass during a closed reaction?
Mass appears after burning nothing
Total mass of reactants equals total mass of products (mass stays the same)
Mass increases by 50% with no matter added
Mass disappears without explanation
Which of the following best describes a periodic trend?
Random placement of elements by color
Repeating patterns of properties (like reactivity, atomic size) across periods and groups
Only the noble gases are grouped together
The table has no organization
Which group on the periodic table contains elements that are mostly unreactive gases?
Alkali metals
Alkaline earth metals
Transition metals
Noble gases (Group 18)
Which of these is an example of using a model in science?
Telling a story about imaginary planets only
Building a small physical model of Earth’s layers to show relative positions
Copying a textbook diagram without explanation
Leaving out important variables to confuse students
A student notices a correlation between two things but cannot prove one causes the other. What should they be careful about?
Concluding causation from correlation without further testing
Always assuming every correlation means causation
Ignoring the correlation completely
Changing data to fit a hypothesis
Why do scientists share methods and data in a lab report?
To hide mistakes
So other scientists can evaluate, repeat, or build on the work (transparency and reproducibility)
To keep results secret from competitors
To confuse readers
Which of the following best shows the relationship between temperature and particle motion in matter?
As temperature increases, particle motion decreases
Temperature and particle motion are unrelated
As temperature increases, particles move faster (more kinetic energy)
As temperature increases, particles change shape but not motion
Match the following parts of an experiment set up
things kept the same in an experiment
controlled variables
factor the experimenter changes
independent variable
factor that is measured
dependent variable
does NOT receive the experiment treatment
control group
procedure done to test a hypothesis
experiment
An (a) is the group in an experiment where the independent variable is being changed or altered. The (b) , where the variables are kept unchanged, is used to provide a comparison to the groups being tested.
Chase, Matti, and Grace are planning to grow plants for their school project. They understand that the amount of water, sunlight, and type of soil must be kept the same for all plants for the experiment to be fair. This is known as a (a) . Can you help them identify what it is?
control group
quantitative
constant
law
Match the following
examine data or observations methodically in detail in order to explain or interpret.
analyze
evidence; information gathered from observations
data
a procedure carried out to gather data about an object or event
investigation
A summary based on evidence or facts
conclusion
A research method in which an investigator manipulates one independent variable to observe the effect on a dependent variable.
experiment
What is the definition of bias in the context of scientific research? (Select all that apply)
A systematic error or deviation from the truth in results or inferences
A random error that occurs by chance
A method to ensure accuracy in experiments
When a writer or speaker exhibits a partiality for - or prejudice against - a person, a topic, or an idea
The process of trying to understand the world around us through observations and experiment is (a)
