Science Vocabulary

Question 1

hypothesis

Answer 1

testable explanation of a question or problem

Question 2

experiment

Answer 2

the act of conducting a controlled test or investigation

Question 3

control

Answer 3

a standard against which other conditions can be compared

Question 4

concentration

Answer 4

the ratio of the amount of solute to the amount of solvent or solution

Question 5

conclusion

Answer 5

a final decision based on facts, experience, or reasoning

Question 6

control group

Answer 6

experimental group in which conditions are controlled

Question 7

controlled variable

Answer 7

a factor in an experiment that remains constant

Question 8

constant

Answer 8

remaining steady and unchanged

Question 9

correlation

Answer 9

a close connection between two ideas or two sets of data

Question 10

dependent variable

Answer 10

result or change that occurs due to the part of an experiment being tested

Question 11

direct relationship

Answer 11

the connection between two variables that shows the same effect (they both increase or both decrease)

Question 12

experimental design

Answer 12

the experimental part in which all the conditions are kept the same except for the condition being tested

Question 13

inconsistent

Answer 13

not in agreement

Question 14

independent variable

Answer 14

in a controlled experiment, the variable that is being changed

Question 15

inverse relationship (indirect)

Answer 15

the connection between two variables that shows the opposite effect (when the value of one increases, the value of the other decreases)

Question 16

theory

Answer 16

a general rule offered to explain experiences or facts

Question 17

variable

Answer 17

that which can be changed

Question 18

absolute zero

Answer 18

the lowest possible temperature. It is 0 Kelvin or approximately -273 degrees Celsius.

Question 19

Chlorophyll

Answer 19

the green pigment present in plants which captures light energy for photosynthesis

Question 20

validity

Answer 20

based on evidence that can be supported

Question 21

proportional

Answer 21

any quantities or measurement having the same relationship

Question 22

proponent

Answer 22

one who supports a cause

Question 23

optimum

Answer 23

the best or most favorable degree, condition, or amount

Question 24

abundant

Answer 24

something that is plentiful or exists in large quantities

Question 25

assert

Answer 25

to state a fact or belief with authority and confidence; to make other’s believe in one’s authority