Heat
This is the total kinetic energy in particles.
What is heat?
This is made of photons, travelling at the speed of light, and can transfer thermal energy.
What is radiation?
What are kinetic energy and potential energy?
Produced in the liver, this waste material is made of small, extra proteins.
What is urea?
Maintaining a balanced diet, not smoking, and avoiding alcohol are are especially important for the health of this.
What is a fetus?
This is the average kinetic energy in particles.
What is temperature?
These make good conductors of electricity and thermal energy because of free electrons.
What are metals?
These cells have a large surface area for water and ions to diffuse.
What are root hairs?
These tubes connect the kidneys to the bladder.
What is the ureter?
This temperature scales has no negative values.
What is kelvin?
This is the unit of heat.
What are Joules?
In gasses and liquids, particles that gain kinetic energy will "float" on lower kinetic energy particles, causing a flow of thermal energy.
What is convection?
These dead cells stack on top of each other, forming a long tube.
What are xylem cells?
This is another name for the excretory system.
What is the renal system?
When a hot thing and a cold thing come into contact, their particles will eventually have the same average kinetic energy.
What is equilibrium?
This law states that energy cannot be created or destroyed, only transferred.
What is the law of conservation of energy?
At any temperature, some of the particles near the surface of a liquid will gain enough energy to escape, becoming vapor or gas.
What is evaporation?
This is the process in which plants lose water through evaporation.
The kidneys mix this with urea to create urine.
What is excess water?
This is a characteristic of every material, and describes the amount of energy required to raise the materials temperature.
What is specific heat?
Heat travels from hot to cold. Energy travels from high to low.
What is entropy?
This is the resulting average energy of a liquid, as particles escape as gas or vapor.
What is a decrease in temperature?
At the stomata and root hairs, this filtering process allows water and ions to pass a barrier.
What is diffusion or osmosis?
This is the process with which we excrete carbon dioxide waste.
What is respiration?
This is the range of different energy levels of photon waves.
What is the electromagnetic spectrum?