What is the difference between qualitative and quantitative observations?
Qualitative = non-numerical description
Quantitative = observation pertaining to numbers
100
What is experimental bias?
Experimental bias is a flaw in the design of an experiment that can result in inaccurate data.
100
Put these metric prefixes in order: kilo, deka, deci, milli, centi, and hecto.
What is kilo, hecto, deka, deci, centi, and milli.
100
What is the equation used to find the volume of a rectangular solid?
Length x width x height
100
Find the median and mode of this data set:
1, 3, 5, 7, 3
median = 3
mode = 3
200
Scientists make models as a way to simplify and better understand complex processes and systems.
What is the purpose of making a model?
200
What is the difference between personal and cultural bias?
Personal bias comes from a person's individual likes and dislikes, while cultural bias stems from the culture in which someone grows up.
200
What does length measure? What tool is used to measure length?
Length is used to measure distance.
A metric ruler is used to measure length.
200
When do scientists use estimation?
Scientists use estimation when they can't obtain an exact number.
200
Find the mean and range of this data set:
1, 2, 3, 4, 7, 9
Mean = 4.33
Range = 8
300
What is an independent variable?
Fill in the blank: The independent variable is used to label the ____ axis on a graph.
An independent variable is a factor that is changed to test a hypothesis.
X- axis.
300
What is the difference between subjective and objective reasoning?
SUBJECTIVE reasoning is when someone uses their personal feelings to make decisions or conclusions. OBJECTIVE reasoning is when you base your decisions and draw conclusions on evidence.
300
What does volume measure?
What tool is used to measure the volume of a liquid?
Volume measures the amount of space an object takes up.
A graduated cylinder is used to measure the volume of liquids.
300
What is accuracy?
What is precision?
Accuracy is how close a measurement is to the true or accepted value.
Precision is how close a group of measurements are to each other.
300
What is a significant figure?
A significant figure is a measurement that includes all digits measured exactly plus one estimated digit.
400
What is a dependent variable?
Fill in the blank: The dependent variable is used to label the _____ axis on a graph.
A dependent variable is the variable that changes in response to the independent variable.
X axis.
400
What is the cause of faulty reasoning?
Too little data is the cause of faulty reasoning.
400
What is the equation for density?
Density=mass/volume
400
Explain how precision and anomalous data are related.
Precise groups of measurements do not have anomalous data. Anomalous data contains outliers, or a measurement that stands out OR is inconsistent with the rest.
400
Find the density of an object that has a mass of 52g and a volume of 32mL. Please round to the hundredths place.
1.63g/mL
500
To group together items that are alike in some way.
What does it mean to classify?
500
Explain the difference between inductive and deductive reasoning.
DEDUCTIVE reasoning is when a general idea is applied to a specific observation. INDUCTIVE reasoning is when a specific observation is used to make observations.
500
What is the difference between mass and weight?
Mass is the measure of matter in an object. Weight is the measure of the force of gravity acting on an object.
500
How does percent error relation to accuracy?
Percent error is the measurement that lets a scientist know if their data is accurate or inaccurate. 5% or more= inaccurate, while 4% or less = accurate results.
500
Imagine you are a pirate scientists. You measure the mass of your gold coin and find it to be 24.2g. It's actual mass is 23 grams. Round to the nearest hundredth place.
Find the percent error.
Is your measurement accurate or inaccurate?