Show:
Chemistry
Physics
Biology
Earth Sciences
100
What does this symbol represent?
Poisonous and infectious material causing other toxic effects
100
Is acceleration vector or scalar and what is the formula that defines it?
Vector, A=V/t
100
What is an open system?
A system that can exhange matter and energy
100
What is the main difference between climate and weather?
Wheather is short term and climate is over a period of 30 years
200
How many neutrons, protons and electrons are there in Boron 15?
10 neutrons, 5 protons and 5 electrons
200
What is useful energy?
The energy needed to do work
200
Who proved spontaneous generation wrong? How?
Louis Pateur by putting meat broath in an S-shaped flask
200
The three main parts of a biosphere
Lithosphere, atmosphere, hydrosphere
300
What is a substance that makes lithmus paper red and what is the pH of that substance?
An acidic substance with a pH level under 7 (Lemon juice)
300
A person travels 10 meters [W], then 15 meters [E].
What is the displacement and the distance of of that travel?
Distance: 25 meters Displacement: 5 meters [E]
300
Daily Double! List and explain all the types of passive and active transport
The answer is too long to be written here
300
What is the layer of the atmosphere in which we live in?
The troposphere
400
Balance this equation: _NH3 -> _H2 + _N2
2NH3 -> 3H2 + 1N2
400
What are the 3 criterias for work to be done? And is the formula for work
1. There must be movement 2. There must be energy 3. The direction of the force and the movement must be the same W=Fd
400
What are the three main plant tissue? Give a short description
Vascular tissue, Ground tissue, Dermal tissue
400
What is the net radiation budget?
The amount of solar energy entering and exiting our planet
500
Daily Double! What is the Avogadro's number
6.02x1023
500
How do you figure out the acceleration from a speed-time graph? And what is the formula?
By finding the slope, and the formula is: (yt-yi)/(xt-xi)
500
List and explain all three types of variables
Controlled variable-> Held constant Manipulated variable-> Deliberatly changed Responding variable-> Change in response to the manipulated variable
500
What is a climatograph?
It is a diagram showing the change of temperature and precipitation over a year