Definitions E Click for each heading then for the answer Effort =results
Energy Is the ability to do work Units = joules (J) What is work?
Echo Reflected sound Question on Echo – think of there and back Speed = distance there +back Time taken
Egestion Removal of Undigested and unabsorbed food (e.g. fibre) (from the body) (from large intestine, through rectum + anus)
Element All the atoms are the same Listed on periodic table of elements E.g Iron is Fe
Ecology Study of the relationship between Living things and their environment
Excretion Removal of the wastes of metabolism (chemical reactions) from the body Three organs = Lungs (CO2 and H2O) Kidneys (urine = urea, water, salt) *Skin (sweat =water and salt)
Electrolysis A chemical reaction caused by electricity Water split into hydrogen : oxygen (2:1)
Electrolysis Hydrogen Oxygen Negative Positive Negative Positive Oxygen Hydrogen
Egg Female sex cell or gamete Made in ovary (both humans and plants)
Electron Negative particle in atom Orbits the nucleus in shells How many – look at atomic number (small)
Enzyme Catalyst made in living cell Amylase changes starch to maltose
Earth wire Brings charge to earth Colour =yellow/green Safety Connected to TOP pin
Evaporation Liquid changes to a gas Used to separate a soluble solid from a liquid e.g. salt and water A= salty water B = wire gauze C = salt D= beaker E = water
Environment Everything that surrounds an animal or plant
Electronic Configuration How electrons are arranged in shells E.g Sodium = 2,8,1 (11 electrons)
Electronics Control of electric current in circuits
Electroplating Coating one metal with a layer of another using electric current Reduces corrosion Improves appearance Jewellery coated with silver
Electrical Energy Energy in moving charges
Equilibrium Balance Three states = stable, unstable, neutral
Do I know it?? Energy Echo egestion element ecology excretion electrolysis Egg Electron enzyme Earth wire evaporation environment Electronic configuration electronics electroplating Electrical Energy