The Babylonians kept abreast of the times using a form of this instrument seen here:
Since limestone undergoes changes to become marble, marble is classified as this type of rock
"For every action there's an equal & opposite reaction" is Newton's third law of this
On the centigrade scale, it's the melting point of ice
1 volt times 1 amp equals this unit
Forces like gravity are measured in units abbreviated N., named for this scientist
To convert kilograms into grams, multiply by this
Musical instruments are tuned to 440 cycles per second, this note on a piano
Through a stethoscope, you can hear this organ make a healthy "lub dub" sound
(Please consider the following.) A fish extracts oxygen from the water with these organs