Font size
WorksheetsScientific Investigation and Measurement Worksheet
Total questions: 35
Worksheet time: 12mins
What is a scientific investigation?
A random process of discovery
A systematic process used by scientists to study phenomena
Guessing based on opinions
A creative storytelling method
Which of the following refers to a factor in an experiment that can change?
Hypothesis
Variable
Theory
Data
Which vocabulary term refers to an educated guess?
Hypothesis
Prediction
Data
Variable
Which step comes first in the scientific method?
Drawing conclusion
Reporting results
Stating the problem
Formulating hypothesis
Which statement best describes a null hypothesis (Ho)?
Suggests there is a relationship between variables
Suggests there is no relationship between variables
Predicts future results
Is based on opinions
What is a controlled variable?
The variable that changes
The variable kept constant
The observed outcome
The independent variable
Which type of experiment is conducted under controlled laboratory conditions?
Natural experiment
Controlled experiment
Field experiment
Observational study
A fair test occurs when:
All variables change together
Only one variable is changed while others are kept constant
None of the variables are changed
The experiment is done only once
What is the basic skill of scientists used to gather information using the senses?
Estimation
Observation
Measurement
Calculation
Which of the following is NOT one of the five senses used in observation?
Sight
Hearing
Movement
Touch
What is used when observations cannot be made accurately using senses alone?
Guessing
Tools
Estimation
Imagination
Every measurement has two parts: _____ and ______.
tool and method
quantity and unit
weight and mass
number and shape
In the measurement 50 kg of rice, what is the unit?
50
rice
kilogram
mass
Which of the following is a quantity?
25
25 cm
cm
ruler
Which of these is used to measure mass?
Thermometer
Ruler
Weighing scale
Stopwatch
The closeness of a measurement to the true value is called:
Precision
Accuracy
Error
Consistency
The closeness of repeated measurements to each other is called:
Accuracy
Error
Precision
Estimation
A student measured the same object three times and got 4.9 cm, 4.9 cm, 4.9 cm. The true length is 5.0 cm. What does this show?
Accurate but not precise
Precise but not accurate
Both accurate and precise
Neither accurate nor precise
Which system of measurement is based on multiples of 10?
English System
Metric System
SI System
Imperial System
Which is the base unit for length in the International System (SI)?
Gram
Liter
Meter
Second
What is the base unit for mass in the SI system?
Gram
Kilogram
Pound
Newton
The process of changing a measurement from one unit to another without changing its value is called:
Conversion
Calculation
Substitution
Comparison
Which prefix means one-thousandth (0.001)?
Kilo
Centi
Milli
Deca
Measurement answers questions like “How long?” or “How heavy?”
True
False
Accuracy and precision mean exactly the same thing.
True
False
The metric system is difficult to convert because it is not based on 10.
True
False
Every measurement includes both a quantity and a unit.
True
False
Errors in measurement can come from instruments and people.
True
False
A hypothesis is always proven to be correct after an experiment.
True
False
A controlled group in an experiment is used for comparison.
True
False
The independent variable is what the researcher measures or observes.
True
False
Data are used to analyze and interpret the results of an experiment.
True
False
Fair testing ensures that results are valid and reliable.
True
False
A metric prefix that means one hundred (100).
(a)
The traditional system mainly used in the United States.
(a)
