Science Vocab

Question 1

Hypothesis

Answer 1

A supposition or proposed explanation made on the basis of limited evidence as a starting point for further investigation

Question 2

Observation

Answer 2

The action or process of observing something or someone carefully or in order to gain information

Question 3

Experiment

Answer 3

A scientific procedure undertaken to make a discovery, test a hypothesis, or demonstrate a known fact.

Question 4

Data

Answer 4

a gathered body of facts.

Question 5

Conclusion

Answer 5

a judgment or decision reached by reasoning.

Question 6

Theory

Answer 6

a supposition or a system of ideas intended to explain something, especially one based on general principles independent of the thing to be explained

Question 7

Law

Answer 7

Scientific laws or laws of science are statements, based on repeated experiments or observations, that describe or predict a range of natural phenomena

Question 8

Independent Variable

Answer 8

a variable that stands alone and isn’t changed by the other variables you are trying to measure

Question 9

Dependent Variable

Answer 9

Dependent variables depend on other variables.

Question 10

Controlled Variable (Constant)

Answer 10

any variable that’s held constant in a research study.

Question 11

Experimental Group

Answer 11

the group in an experiment that receives the variable being tested.

Question 12

Trial

Answer 12

A fixed number of repetitions of the same experiment can be thought of as a composed experiment, in which case the individual repetitions are called trials.

Question 13

Bias

Answer 13

any systematic deviation between the results of a study and the “truth.”

Question 14

Placebo

Answer 14

any treatment that has no active properties,

Question 15

Meter

Answer 15

the SI base unit of length (equivalent to approximately 39.37 inches), first introduced as a unit of length in the metric system.

Question 16

Gram

Answer 16

a metric unit of mass equal to one thousandth of a kilogram.

Question 17

Liter

Answer 17

a metric unit of capacity, formerly defined as the volume of one kilogram of water under standard conditions, now equal to 1,000 cubic centimeters (about 1.75 pints).

Question 18

Kilometer

Answer 18

a metric unit of length equal to 1,000 meters (approximately 0.62 miles)

Question 19

Milimeter

Answer 19

a metric unit of length equal to one thousandth of a meter.

Question 20

Centimeter

Answer 20

a metric unit of length, equal to one hundredth of a meter.

Question 21

Kilogram

Answer 21

the SI unit of mass (equivalent to approximately 2.205 lb), first introduced as a unit of mass for the metric system.

Question 22

Milliliter

Answer 22

one thousandth of a liter (0.002 pint).

Question 23

Celsius

Answer 23

of or denoting a scale of temperature on which water freezes at 0° and boils at 100° under standard conditions.