Measurement
Instrument used to measure very small length
What is a Caliper?
Can only take certain values (like whole numbers).
What is Discrete?
This is the average of the numbers
What is the mean?
The variable in an experiment that the scientist decides will change.
What is manipulating variable?
Two benefits of a model of an earthquake versus real earthquake...
What are it is safer...?
Instrument used to measure volume
What is a graduated cylinder
Can take any value (within a range)
What is Continuous?
Calculate the mean of the following numbers:
6, 11, 7
What is 8?
The variable is what will be measured in the experiment.
What is the responding variable?
Three limitations of using models...
What are that they are 'idealizations' or 'simplification' of reality and thus cannot possibly replace reality?
Instrument used to measure temperature
What is a thermometer?
He weighs 25.5 kg can be described as...
What is Continuous & Quantitative?
Find the Median of
3, 13, 7, 5, 21, 23, 23, 40, 23, 14, 12, 56, 23, 29
What is 22?
A scientist wants to test the effects of a chemical on apple growth. He sprays an orchard with the chemical. A second orchard does not get sprayed with the chemical. In the fall, the number of apples from each orchard is counted. Which of the following is the independent variable in the experiment? What is another name for an independent variable?
What is number of apples from each orchard counted?
What is a manipulated variable?
Identify the hypothesis statements...
A. If students study 25 minutes per night, then they will receive higher scores on their tests.
B. If I replace the battery in my car, then my car will get better gas mileage.
C. I think that girls are smarter than boys.
D. If I brush my teeth every day, then I will not develop cavities.
What are A, B & D?
Instruments used to measure mass
What is a triple beam balance?
She has 2 brothers can be described as...
What is Discrete & Quantitative
Find the mode:
3, 7, 5, 13, 20, 23, 39, 23, 40, 23, 14, 12, 56, 23, 29
What is 23?
A scientist plants two rows of corn for experimentation. She puts fertilizer on row 1 but does not put fertilizer on row 2. Both rows receive the same amount of water and light intensity. She checks the growth of the corn over the course of 5 months. What is a constant in this experiment?
What is the amount of water (1.)?
The purpose of a microscope is...
What is to view objects that can not be seen by the naked eye?
Instrument used to measure time
What is a stop watch/ watch/ clock?
Counting is to _______ as measuring is to_______
What is Discrete & Continuous?
Dan's data from his experiment:
Trial 1: 5, 6, 7, 7, 4, 15
Trial 2: 8, 6, 7, 5, 9, 8
Is there a problem with Dan's data?
What is an error in trial 1?
A student wants to conduct an experiment to find out how pulse rate changes as the length of time spent exercising increases. The dependent variable will be...
What is a another name for a dependent variable?
What is the pulse rate?
What is a responding variable?
Is a testable answer to a scientific question
What is a hypothesis?