Quiz about Scientific Investigation Test Review

Question 1

To gather information using our senses.

Accepted Answer

observe

Answer

inference

Answer

predict

Answer

extrapolate

Question 2

Conclusion drawn from an observation.

Accepted Answer

inference

Answer

prediction

Answer

observe

Answer

extrapolate

Question 3

To infer or estimate by extending or projecting known information.

Accepted Answer

extrapolate

Answer

predict

Answer

inference

Answer

hypothesis

Question 4

To guess about the future based on facts.

Accepted Answer

predict

Answer

extrapolate

Answer

inference

Answer

classify

Question 5

To arrange or group in classes according to some system or principle.

Accepted Answer

classify

Answer

recycle

Answer

control

Answer

constant

Question 6

A possible answer to a question that can be tested; written in "If ___________, then_________" format.

Accepted Answer

hypothesis

Answer

independent variable

Answer

dependent variable

Answer

classify

Question 7

A statement that explains the relationship between variables.

Accepted Answer

conclusion

Answer

hypothesis

Answer

trend

Answer

constant

Question 8

Single factor in an experiment that is changed (what I change!)

Accepted Answer

independent variable

Answer

dependent variable

Answer

control

Answer

constant

Question 9

Factor that will be measured in an experiment (the DATA you collect!)

Accepted Answer

dependent variable

Answer

independent variable

Answer

constant

Answer

control

Question 10

To process materials so that they can be used again.

Accepted Answer

recycle

Answer

conclusion

Answer

hypothesis

Answer

trend

Question 11

Standard used for comparison in an experiment (the "normal" group that doesn't receive what your testing)

Accepted Answer

control

Answer

constant

Answer

dependent variable

Answer

trend

Question 12

The tendency toward or inclination for something to follow a pattern

Accepted Answer

trend

Answer

ethical

Answer

classify

Answer

conclusion

Question 13

Conforming to accepted standards of social or professional behavior.

Accepted Answer

ethical

Answer

constant

Answer

conclusion

Answer

classify

Question 14

Factor that stays the SAME through all phases of an experiment.

Accepted Answer

constant

Answer

control

Answer

independent variable

Answer

dependent variable

Question 15

What statement is a correct conclusion for the data shown?

Accepted Answer

As a person exercises for 5 minutes, their heartbeat continually rises over time.

Answer

The average heart rate of a person exercising over a 5 minutes period was 101 bpm.

Answer

The average heart rate of a person exercising over a 5 minute period did not exceed 115 bpm.

Answer

After 3 minutes of exercise, a person's heartbeat will begin to lower.

Question 16

What is the independent variable in the following hypothesis?
HYPOTHESIS: If I spend more time studying, then my grades in science will improve.

Accepted Answer

Time spent studying

Answer

An improvement in grades

Answer

Location for studying science

Answer

Playing soft music in the background

Question 17

A student conducted an investigation on the growth of bacteria over time. He incubated three different types of bacteria for 120 minutes. He began counting the number of bacteria grown after 30 minutes. What is the independent variable in this experiment?

Accepted Answer

Type of bacteria

Answer

Trial number

Answer

Number of bacteria

Answer

Incubation time

Question 18

For scientific data to be considered accurate and reliable, tests should be

Accepted Answer

conducted as many times as possible.

Answer

repeated no more than 2 times.

Answer

conducted 3 times.

Answer

conducted only 1 time.

Question 19

The independent variable is always graphed on the X-axis.

Accepted Answer

True

Answer

False

Question 20

The dependent variable is always graphed on the X-axis.

Accepted Answer

False

Answer

True

Question 21

What is the dependent variable in the following hypothesis?

HYPOTHESIS: If I add fertilizer to my flowers, then the flowers will grow taller.

Accepted Answer

Flower height

Answer

Fertilizer

Answer

Number of blooms on each plant

Answer

Amount of time flowers took to bloom

Question 22

What is the dependent variable in this experiment?

Accepted Answer

Speed

Answer

Time

Answer

Distance

Answer

Acceleration

Question 23

Matt wants to test which liquid freezes first: Pepsi, milk, or apple juice.  He poured 50 mL of each into separate glasses and placed them in his freezer.  Every ten minutes, he checked his freezer and recorded his observations.  Pepsi froze first, followed by apple juice and then milk.  What is his dependent variable?

Accepted Answer

length of time until frozen

Answer

type of liquid

Answer

amount of liquid

Answer

location of freezer

Question 24

Sabrina wants to test which brand of popcorn pops the most kernels.  She picked a store brand, Orville Redenbacher, and PopSecret.  All three bags started with the same number of kernels.  She popped each for 3 minutes in the same microwave, and then counted the number of kernels left over.  What is her independent variable?

Accepted Answer

Brand of popcorn

Answer

Number of kernels left over

Answer

number of kernels before popping

Answer

length of time cooking

Question 25

Which of the following is a valid hypothesis?

Accepted Answer

If I give unlabeled samples of cookies, then I think my class will identify the name brand.

Answer

Tide works best for removing grass stains.

Answer

Miracle Gro soil is best for growing tomatoes.

Answer

Pampers diapers absorb the most liquid.

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