Science Flashcards
independent
changing
dependent
being measured
control
stays the same
variables
independent
dependent
control
gametes
sex cells
holds half of the chromosomes
(23)
amino acids
building blocks of proteins
ATP
primary source of energy
Endothermic vs. Ectothermic
endothermic: warm blooded, took in energy
Ectothermic: cold blooded, released energy
vertebrate
has a spine
water’s freezing and boiling points in Celsius
freezing: 0 C
boiling: 100 C
convection vs. conduction
energy travels through . . .
liquid or gas: convection
solid: conduction
potential and kinetic energy
energy of . . .
potential –> . . . height
kinetic –> . . . motion
mechanical energy
what does it mean to be “conserved”
sum of potential and kinetic energy
conserved: same in the end as in the beginning
relationship between current and resistance in an electrical circuit
as resistance goes up current goes down
inverse relationship
△ T
△ T
“Change in”
final - initial = △ T
pH scale
know numbers, labels, and examples (alkaline)
9
bases “ammonia”
8
7 : neutral “water”
6
acids “vinegar”
5
density
what is the equation?
what will float?
d= mass/volume
less dense-floats
more dense-sinks
pressure formula
what relationship do the three variables have?
P V = T
direct: P↑ & T↑
inverse: P↑ & V↓
Pressure and volume: inverse
pressure and temperature: direct
temperature and volume: direct
“kilo”
“centi”
K H D U D C M
(king henry doesn’t usually drink chocolate milk)
1 kilogram = 1000 grams
100 centimeters = 1 meter
planets
terrestrial “dirt”←l→ gas glants
○○○○l⚪⭘○○
MVEM JSUN
direction of the electric field
positive downward to negative
photosynthesis equation
light+water+CO2 –> sugar + O2
photosynthesis occurs in what part of the cell
chloroplast
Chromosomes located
in the nucleus
prokaryote vs. eukaryote cells
prokaryote (no nucleus)
Eukaryote (nucleus)
Animal v Plant Cells
Both Eukaryote
Plant cells
-cell wall
-chloroplast
Animal Cells
-no cell wall
-no chloroplast
solid to liquid
melting
liquid to gas
evaporation
gas to solid
deposition
solid to gas
sublimination
gas to liquid
condensation
liquid to solid
freezing
charges
attract/repel
like charges repel
←⊕⊕→ ←⊖⊖→
different charges attract
⊖→←⊕
reactants and products
CO2+H2O+light (reactants) → O2 + C6H12O6 (products)
ozone and greenhouse gases
ozone O3 is good and protects us from the sun
greenhouse gases are bad and heat the planet
percent error
actual - guess
____________________ x 100
actual
lute vs. solvent “solution”
solute dissolves in solvent
viscosity
“friction for liquids”
think: dropping a penny in honey versus milk”
conductor vs. insulator
conductor: low resistivity, high current
insulator: high resistivity, low current
alloy vs. polymer
alloy: metals
polymer: plastics
amoeba
unicellular and has a nucleus
ion vs. isotope
ion: charged particle (change in electrons)
isotope: change in mass (neutrons)
what does aqueous mean
dissolved in water
what is an autotroph? heterotroph?
autotroph: makes its own food/energy
heterotroph: consumes other life forms for food/energy
abiotic vs. biotic
abiotic: non living
biotic: living
Doppler Effect
sounds or colors changing as an object gets closer or further away
NaCl
salt
Sucrose
Sugar
