Chemistry
Earth Science
Meteorology
Mechanics (Physics)
100

What is POH

The potential of hydroxide 

100

What is the most dominant species in the current era

Mammals (Era is Cenezoic) 
100

What are the oldest elements 

Helium and Hydrogen 

100

Adjacent=5

Opposite=12

Θ=30

find sinΘ 

5/13

200

How to calculate Molarity

Moles / Liters

200

What are steno's laws 

Law of superposition, Law of original horizontality, Law Of Cross-cutting relationships, Principal of lateral continuity, Principal of inclusions 

200
What are low clouds called

Stratus 

200

A stationary car starts accelerating at 2m/s2. How far will the car travel in 3 seconds?

X = 9m

300

What does ⇌ Mean? 

Equilibrium

300

What is the angle of repose for sand dunes

340

300

How is air pressure measured

Through a Pychometer or a Barometer

300

A man is pushing a 50N crate with a force of 5N. What is the acceleration of the block? (Assume g = 10m/s2)

The mass of the crate is 50/10 = 5kg

The force applied is 5N, and theres no other forces so the net force is 5N

5 = 5a 

a = 1

400

What is Ksp

The equilibrium constant for a solid substance dissolving in an aqueous solution

400

Who created the theory of seafloor spreading 

Henrey Hess

400

What does "b" mean in the KÖppen Classification

Dry Climate 

400

A 1kg ball with a speed of 4.5m/s strikes a 2kg stationary ball. If the collision is perfectly inelastic, what are the speeds of the balls after the collision?

Initial Momentum = (1)(4.5) = 4.5. The masses stick together so the final mass is 3. This means that the final momentum is (3)(v) which is equal to 4.5

Thus v = 4.5/3 = 1.5 m/s

500

What is an Aqueous solution 

An Aqueous solution is a homogeneous liquid solution

500

What is spectroscopy 

The study of light that depend on wavelength 

500

Example of Solid Precipitation 

Sleet, Hail

500

What is potential Energy

Stored Energy