These words can be grouped into four groups of four words, with a connection between all of the four groups. What is the connection?
MARK | BAR | ANGLE | MAMMAL |
SAUCE | NATURE | CENT | CHANCE |
MURDER | PENT | EDUCATION | SPY |
PLACE | SPEED | BURN | THOUGHT |
The groups are:
- Second ____
NATURE
CHANCE
THOUGHT
PLACE
- Degree scales
MURDER
BURN
ANGLE
EDUCATION
- Meanings of mole
SPY
MAMMAL
MARK
SAUCE
- Append "meter" (barometer, centimeter, pentameter, speedometer) (thanks @PDT)
BAR
CENT
PENT
SPEED
The connection between the four groups is:
SI units (second, degree, mole, meter). The "fundamental" in the title probably refers to them being among the 7 basic SI units, assuming "degree" may be interpreted as "degree Kelvin".