6th Grade Science Final Flashcards
Condensation
change of a vapor or gas to a liquid
conduction
energy is transferred from particle to particle by direct contact
conductor
material that allows thermal energy transfer
Ex: copper, steel, sea water
convection
the transferring of energy in liquids and gasses by particles moving in currents
insulator
material that prevents thermal energy transfer
Ex: , wood, glass, rubber
kinetic energy
energy of motion
potential energy
stored energy
radiation
energy is transferred in waves and doesn’t need particles to move along
thermal energy
TOTAL amount of kinetic energy of ALL the particles in a system
thermal energy transfer
movement of thermal energy from a hotter area to a cooler area
cells
the smallest unit that can live on its own and that makes up all living organisms and the tissues
of the body
cell membrane
thin layer that surrounds both plant and animal cells, allows some substances to
pass into and out of the cell while blocking others, which means it is
semi-permeable
chloroplast
organelle where photosynthesis takes place, gets its green color from chlorophyll , only
found in plants
cytoplasm
jellylike substance that fills the cell, where the organelles are located
mitochondria
use oxygen and sugar (glucose) to provide energy for the cell (the mighty
mitochondria)
nucleus
controls what goes on in the cell, contains the cell’s genetic material (DNA)
organelles
structures found within cells
sensory neurons
nerve cells that take in information from the outside world and send it to the brain
arteries
vessels that carry blood away from the heart