to be arranged in an orderly way

a portion of something that is used to represent the whole thing

a way of learning about the natural world

using 1 or more of your senses to gather information

type of observation that deals with numbers

type of observation that DOES NOT deal with numbers

grouping together items that are alike in some way

explaining or interpreting things that you observe

making a statement or a claim about what will happen in the future based on past experience or evidence

evaluating observations & data to reach a conclusion about them

The scientist places a sample under a microscope in order to see objects she can't see with her eyes alone. This is an example of:

A researcher sorts test tubes into categories based on the materials they contain. This is an example of:

Scientists often use whiteboards to draw sketches of molecules or other objects in order to study them more closely. This is an example of:

After data has been collected, this researcher examines them to find results & draw conclusions. This is an example of:

having an attitude of doubt

facts, figures, & other evidence collected during a scientific investigation

data that is collected in a precise, logical, & consistent manner

Reasoning that is based on evidence

set of beliefs based on subjective reasoning, faulty reasoning, or faulty beliefs

the process of gathering evidence about the natural world & proposing explanations based on this evidence

a possible answer to a scientific question

the factor that you change on purpose in an experiment

the factor that may change based on what you purposely changed

experiment that has only 1 variable changed at a time

includes observations and conclusions that have been repeated

may be formed from evidence, but has not been confirmed yet

Because it is affected by gravity, an object's mass would be less on the moon, where there is less gravity.

Density determines whether an object will float or sink in water.

The best unit for measuring the length of a pencil is the nanometer.

An approximation of a number based on reasonable assumptions.

Refers to how close the measurement is to the true or accepted value.

Refers to how close a group of measurements are to each other.

When you play mini golf, your puts are ALWAYS 1 cm short of the hole.

When you shoot 3 pointers, you swish your first shot, air ball your second, and brick off the rim for a third miss

When you play darts, you hit the bullseye ever time.

When you are kicking field goals, you never kick it to the same spot & always miss.

Communicate how precise measurements are.

The numerical average of a set of data

The middle number in an ORDERED set of data

The number that appears most often in a list of numbers

The difference between the greatest value & least value in a data set.

Data that does not fit with the data set

The PERCENT difference between the known value of a substance and its measured value.

Which of these would be considered ANOMALOUS DATA in this data set?

79 kg

73 kg

74 kg

155 kg

70 kg

A person made an estimate for a three–minute interval. The estimate was 241.5 seconds. What was the error of this estimate?

A test taker makes an estimate for a 30–second time interval. The estimate is 34.5 seconds. What is the percent error in this example?

In the early 1600s, Galileo Galilei performed a series of experiments to measure the acceleration of a ball rolling down a smooth inclined plane. He tried several ways to measure time, including water clocks and his own pulse. Suppose his pulse rate was 66 beats per minute, and he counted 11 beats for the ball to roll down the plane. How many seconds was the ball rolling?

A student is investigating the effects of age on time estimation abilities. The results are shown in the table below, and the experimenter concludes that younger people are more effective at estimating time. What is wrong with this conclusion?

A student uses a counting technique to estimate time. She counts "one one-thousand, two one-thousand, three one-thousand" and so on. Her estimate for a 10-second interval is 9.28 seconds. Assuming her rate is constant, what will her estimate be for 120 seconds?

A data set has 8 data points. If the data values are written in order from smallest to largest, which value is the median?

Find the mean of this data set:

8, 8, 3, 4, 8, 6, 4, 3

Find the median of this data set:

6, 4, 2, 3, 1, 5, 8, 8, 9, 6

Find the mode of this data set:

3, 3, 4, 8, 5, 8, 1, 6, 7

Which can have multiple values for a set of numbers?

Which of these would you NOT use models to observe? Select all that apply.