Study your flashcards anywhere!

Download the official Cram app for free >

  • Shuffle
    Toggle On
    Toggle Off
  • Alphabetize
    Toggle On
    Toggle Off
  • Front First
    Toggle On
    Toggle Off
  • Both Sides
    Toggle On
    Toggle Off
  • Read
    Toggle On
    Toggle Off
Reading...
Front

How to study your flashcards.

Right/Left arrow keys: Navigate between flashcards.right arrow keyleft arrow key

Up/Down arrow keys: Flip the card between the front and back.down keyup key

H key: Show hint (3rd side).h key

A key: Read text to speech.a key

image

Play button

image

Play button

image

Progress

1/32

Click to flip

32 Cards in this Set

  • Front
  • Back
amplifier
a device that increases the strength of an electric signal from a microphone
animal kingdom
one of three kingdoms into which all living things can be classified
antibiotic
a substance which, when introduced into the body, controls many bacterial infections
antiseptic
one kind of substance that slows down or stops the growth of bacteria outside the body
atomic number
the number of protons in the nucleus of an atom; also the index of the properties of the atom
bacilli (bacillus, S.)
rod-shaped bacteria
bacteria (bacterium, S.)
microscopic organisms found just about everywhere on Earth; some are "good" and some cause disease
binary stars
a pair of stars circling around a common center
biomes
areas with similar geography and climate; similar plants and animals live in these similar areas
black hole
an area surrounding a dead star; has such a strong gravitational pull that light is trapped inside
carnivore
an animal that eats only other animals
chain reaction
a process in which neutrons from the fission of one atomic nucleus cause fission of other nuclei
chlorophyll
a green substance in green plant cells that allows photosynthesis to take place
chromosome
a structure inside the nucleus of a cell that contains substances which determine the characteristics of new organisms
cilia
tiny hairs that line the inside of the nose and the tubes to the lungs
circuit-breaker
a switch that automatically stops the flow of electric current when there is a short circuit or an overload
cocci (coccus, S.)
sphere-shaped bacteria
colony
a group of many bacteria
community
a group of living things in one place
concave lens
a lens that is thicker near the edges than in the middle; forms an image by spreading out light in an orderly way
concave mirror
a mirror that is curved inward like the inner surface of a spoon
conductor
a substance through which an electric current can easily flow
coniferous
bearing cones; have needlelike leaves that fall all year
constellation
a pattern of stars seen with the unaided eye in a small region of the sky
consumer
a living thing that cannot make its own food but must instead find food and eat it
control
that part of an experiment that includes all conditions (variables) except the one being studied
convex lens
a lens that is thicker in the middle than near the edges; focuses light at a point
convex mirror
a mirror that is curved outward like the outer surface of a spoon
cross-pollination
the transfer of pollen from the stamen of one flower to the pistil of another
current electricity
an electric charge that is moving from one place to another
deciduous
shedding leaves annually
decomposer
a living thing that feeds on dead matter; most common are decay bacteria