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100
A type of mechanical mixture, where components are in different states.
What is a suspension
100
A system that can exhange energy but can not exchange matter.
What is a closed system
100
The idea that life can appear out of non, living matter.
What is spontaneous generation
100
This biome are distinguished by trees that lose their leaves each fall
What is the deciduous forest
100
This organelle is in charge of protiensynthesis
What is a ribosome
200
A method of preserving meat and fish and is actually a method of drying.
What is salting
200
The energy of an object in motion, when a force is applied to make it move.
What is kinetic energy
200
This states that all living things are made up of cells.
What is the Cell Theory
200
The observed increase in Earth's average temperature over time.
What is global warming
200
This compound contain 3 sodium atoms and 1 nitrogen atom
What is sodium nitride
300
This compound is made up of 1 nitrogen atom and 3 hydrogen atoms.
What is ammonia
300
The formula for this is mgh.
What is the formula for potential energy
300
This organelle is in charge of converting chemical energy in sugars into energy the cell can use (reverse photosynthesis).
What is a mitochondria
300
Any change in a structure or functioning of an organism that makes it more suited to its environment
What is adaptation
300
When an object moves at a constant speed
What is uniform motion
400
The total mass of reactants is equal to the total mass of the product.
What is the Law of Conservation of Mass
400
This law states that the total energy, including heat, in a system remains constant.
What is the First Law of Thermodynamics
400
This is a double layer of lipids that each have a phosphate group attached.
What is a phospholipid bilayer
400
The angle between a ray falling on a surface and the line of the perpindicular to the surface
What is the angle of incidence
400
The energy released during the reverse phase change, when 1 mol of a vapour condenses to a liquid.
What is the heat of condensation
500
This person discovered the electron. Their model sates that an atom was a positively charged sphere with negative particles imbedded.
Who is J.J. Thomson
500
This is a device that converts heat into mechanical energy.
What is a heat engine
500
When waste products from blood pass through these cells into a dialysate fluid.
What is peritoneal dialysis
500
This contains rocks, or grounds, in the biosphere
What is lithospere
500
This compound contains 1 sulfur atom and 4 chlorine atoms
What is sulfur tetrachloride