science Flashcards
reactants and products of photosythesis
reactants-carbon dioxide and water
products-oxygen and glucose
Aerobic respirtation
breaking down glucose with oxygen
effects of excersice resperation
increase of heartrate
pumps blood around body
start breathing faster as not inhaling as much oxygen
become hotter
sweatier
Anaroebic resperation
breaking down glucose in the absence of oxygen
can cause muscle fatuige beacsue of buildup of latic acid
Fermentation
chemical that breaks down glucose anaroebically
Conservation of mass
During
chemical reactions
or a change of state, no atoms
are created or destroyed.
combustion reactions
When a substance burns, it reacts with oxygen. This is known as combustion. All combustion reactions are exothermic
Thermal decompistion
chemical reaction that happens when a compound breaks down when heated
Endothermic Reaction
endothermic chemical reaction causes a decrease in temperature (of the surroundings).
Exothermic Reaction
causes an increase in temperature (of the surroundings).
properties of magnets
north and south pole opposites attract
how magnets interact with other magnetic feilds
If using 2 or more magnets they can either attract to one another or repel. This depends on what poles of the magnets are facing each other.
uses of elctromagnets
levitatiom eg trains
investigating electromagnets strength
how many coils are wrapped around the iron core
the current voltage
the type of core
what is the purpose of respiration
to release energy
where in cells does respiration take place
aerobic-mitochondria
anaroebic-cyptoplasm
what are the reactants and products of aerobic respiration
reactants- glucose and oxygen
products-carbon dioxide and water
why does change take place when doing excersice
more blood pumped around the body
what is fermentation 2
anaroebic respiration in yeast
what are the reactants of fermentation
glucose
what are the products of fermentation
carbon dioxide and ethanol
word eqaution to show fermentation
glucose-ethanol+carbon dioxide
why is glucose stored as starch in plants
excess glucose
what colour is the chemical before startch is added
orange
