Basics

meter (m)

1 × 10³ m

kilometer (km)

1×10^0 m

centimeter (cm)

1×10^-2 m

milimeter (mm)

1×10^-3 m

micrometer

1×10^-6 m

nanometer (nm)

1×10^-9 m

kilogram (kg)

1×10³ g

gram (g)

1×10^0 g

miligram (mg) 

1×10^-3 g

microgram 

1×10^-6 g

nanogram (ng)

1×10^-9 g

liter (l)

1×10^0 l

mililiter (mL)

1×10^0 l

microliter

1×10^-6 l

when going from number that is large to small

decimal point moves to the right

when going from number that is small to large

decimal place moves to the left

dissecting microscope 

microscope where 3D object is observed using reflective light (same orientation)

compound microscope

object observed is mounted on glass slide and observed using light transmitted through it— image is effectively 2D (inverts and reverses the image) 

True or False: in a compound microscope, more light is required when using lenses of greater magnifying power 

true 

how to find magnification of microscope

ocular power x objective (ex 5x x 15x = 75x power)

True or False: Observational research studies are more realistic than experimental studies

True

A hypothesis is considered a theory when

results of several experiments support the hypothesis

why does real science not intend to “prove” a hypothesis to be true?

future experiments or discoveries may provide data that refute the hypothesis

logic behind hypothesis-based science

if my hypothesis is correct, i can expect certain test results

fundamental characteristics of life 

order, response to stimuli, reproduction, evolution, cells, homeostasis, growth+ development, regulation, energy processing